2014 Chevrolet Express Owners Manual

COLD (1) range for a cold check, transmission temperature 27°C to 32°C (80°F to 90°F); between the COLD (1) and HOT (3) range for a WARM (2) check, 50°C to 60°C (122°F to 140°F); or in the HOT (3) cross-hatched range for a hot check, 71°C to 93°C (160°F to 200°F). Be sure to keep the dipstick pointed down to get an accurate reading. If the fluid level is in the acceptable range, push the dipstick back in all the way; then flip the handle down to lock the dipstick in place.

4.

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10-15

How to Add Automatic Transmission Fluid Refer to Recommended Fluids and Lubricants on page 11-12 to determine what kind of transmission fluid to use.

1. WARM Range 2. HOT Range Using a funnel, add fluid down the transmission dipstick tube only after checking the transmission fluid while it is warm or hot. A cold check is used only as a reference. If the fluid level is low, add only enough of the proper fluid to bring the level up to the middle of the WARM (1) or HOT (2) range depending on the ambient temperature and prior driving conditions. Refer to “How to Check Automatic Transmission

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Vehicle Care

Fluid” earlier in this section for instructions on driving to achieve warm or hot transmission fluid. It does not take much fluid, generally less than 0.5 L (1 pt). Do not overfill.

{ Caution

Use of the incorrect automatic transmission fluid may damage the vehicle, and the damage may not be covered by the vehicle warranty. Always use the automatic transmission fluid listed in Recommended Fluids and Lubricants on page 11-12.

. After adding fluid, recheck the fluid level as described under “How to Check Automatic Transmission Fluid,” earlier in this section.

. When the correct fluid level is

obtained, push the dipstick back in all the way; then flip the handle down to lock the dipstick in place.

Engine Air Cleaner/Filter

The engine air cleaner/filter is near the center of the engine compartment. See Engine Compartment Overview on page 10-6.

When to Inspect the Engine Air Cleaner/Filter Inspect or replace the air cleaner/ filter at the scheduled maintenance intervals. See Maintenance Schedule on page 11-3. If driving in dusty/dirty conditions, inspect the filter at each engine oil change. How to Inspect the Engine Air Cleaner/Filter To inspect the air cleaner/filter, remove the filter from the vehicle and lightly shake it to release loose dust and dirt. If the filter remains covered with dirt, a new filter is required. Never use compressed air to clean the filter. To inspect or replace the engine air cleaner/filter: 1. Unhook the retainer clips and

remove the cover.

2. Lift the filter out of the engine air

cleaner/filter housing. Care should be taken to dislodge as little dirt as possible.

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{ Caution

If the air cleaner/filter is off, dirt can easily get into the engine, which could damage it. Always have the air cleaner/filter in place when you are driving.

Cooling System The cooling system allows the engine to maintain the correct working temperature.

3. Clean the engine air cleaner/

4.

filter housing. Inspect or replace the engine air cleaner/filter. Make sure that the filter fits properly into the housing.

5. Reinstall the cover and fasten

the retaining clips.

{ Warning

Operating the engine with the air cleaner/filter off can cause you or others to be burned. The air cleaner not only cleans the air; it helps to stop flames if the engine backfires. Use caution when working on the engine and do not drive with the air cleaner/filter off.

4.3L V6 Engine Shown (4.8L

V8 Engine, 5.3L V8 Engine, and

6.0L V8 Engine Similar)

1. Radiator Pressure Cap 2. Coolant Recovery Tank 3. Engine Cooling Fan (Out

of View)

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Vehicle Care

{ Warning

An electric engine cooling fan can start even when the engine is not running. To avoid injury, always keep hands, clothing, and tools away from any engine cooling fan.

{ Warning

Heater and radiator hoses, and other engine parts, can be very hot. Do not touch them. If you do, you can be burned. Do not run the engine if there is a leak. If you run the engine, it could lose all coolant. That could cause an engine fire, and you could be burned. Get any leak fixed before you drive the vehicle.

{ Caution Using coolant other than DEX-COOL® can cause premature engine, heater core, or radiator corrosion. In addition, the engine coolant could require changing sooner. Any repairs would not be covered by the vehicle warranty. Always use DEX-COOL (silicate-free) coolant in the vehicle.

Engine Coolant The cooling system in the vehicle is filled with DEX-COOL® engine coolant. This coolant is designed to remain in the vehicle for 5 years or 240 000 km (150,000 mi), whichever occurs first. The following explains the cooling system and how to check and add coolant when it is low. If there is a problem with engine overheating, see Engine Overheating on page 10-22.

What to Use

{ Warning

Adding only plain water or some other liquid to the cooling system can be dangerous. Plain water and other liquids, can boil before the proper coolant mixture will. The coolant warning system is set for the proper coolant mixture. With plain water or the wrong mixture, the engine could get too hot but you would not get the overheat warning. The engine could catch fire and you or others could be burned. Use a 50/ 50 mixture of clean, drinkable water and DEX-COOL coolant.

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Use a 50/50 mixture of clean, drinkable water and DEX-COOL coolant. If using this mixture, nothing else needs to be added. This mixture: . Gives freezing protection down

to −37°C (−34°F), outside temperature.

. Gives boiling protection up to

129°C (265°F), engine temperature.

. Protects against rust and

corrosion.

. Will not damage aluminum parts. . Helps keep the proper engine

temperature.

{ Caution

If improper coolant mixture, inhibitors, or additives are used in the vehicle cooling system, the engine could overheat and be damaged. Too much water in the

(Continued)

Caution (Continued)

mixture can freeze and crack engine cooling parts. The repairs would not be covered by the vehicle warranty. Use only the proper mixture of engine coolant for the cooling system. See Recommended Fluids and Lubricants on page 11-12.

Never dispose of engine coolant by putting it in the trash, pouring it on the ground, or into sewers, streams, or bodies of water. Have the coolant changed by an authorized service center, familiar with legal requirements regarding used coolant disposal. This will help protect the environment and your health. Checking Coolant The vehicle must be on a level surface when checking the coolant level.

Vehicle Care

10-19

Check to see if coolant is visible in the coolant recovery tank. If the coolant inside the coolant recovery tank is boiling, do not do anything else until it cools down. If coolant is visible but the coolant level is not at or above the COLD FILL mark, add a 50/50 mixture of clean, drinkable water and DEX-COOL coolant at the coolant recovery tank, but be sure the cooling system is cool before this is done.

The coolant recovery tank cap has this symbol on it. When the engine is cold, the coolant level should be at or above the COLD FILL mark. If it is not, there could be a leak in the cooling system.

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Vehicle Care

If the coolant is low, add the coolant or take the vehicle to a dealer for service. How to Add Coolant to the Recovery Tank for Gasoline Engines

{ Warning

You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine.

{ Caution

This vehicle has a specific coolant fill procedure. Failure to follow this procedure could cause the engine to overheat and be severely damaged.

If coolant is needed, add the proper DEX-COOL coolant mixture at the coolant recovery tank. How to Add Coolant to the Radiator

{ Warning

Steam and scalding liquids from a hot cooling system can blow out and burn you badly. Never turn the cap when the cooling system, including the surge tank pressure cap, is hot. Wait for the cooling system and surge tank pressure cap to cool.

If coolant is needed, add the proper mixture directly to the radiator, but be sure the cooling system is cool before this is done.

1. Remove the radiator pressure cap when the cooling system, including the radiator pressure cap and upper radiator hose, is no longer hot. Turn the pressure cap slowly counterclockwise until it first stops. Do not press down while turning the pressure cap. If a hiss is heard, wait for that to stop. A hiss means there is still some pressure left.

2. Keep turning the pressure cap, but now push down as you turn it. Remove the pressure cap.

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Vehicle Care

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3. Fill the radiator with the proper DEX-COOL coolant mixture, up to the base of the filler neck. See Recommended Fluids and Lubricants on page 11-12 for more information about the proper coolant mixture.

4. Fill the coolant recovery tank to

6. Start the engine and let it run

the COLD FILL mark.

5. Reinstall the cap back on the

coolant recovery tank, but leave the radiator pressure cap off.

until the upper radiator hose can be felt getting hot. Watch out for the engine cooling fan.

7. By this time, the coolant level inside the radiator filler neck may be lower. If the level is lower, add more of the proper DEX-COOL coolant mixture through the filler neck until the level reaches the base of the filler neck.

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Vehicle Care

8. Replace the pressure cap. At

any time during this procedure if coolant begins to flow out of the filler neck, reinstall the pressure cap.

{ Caution

If the pressure cap is not tightly installed, coolant loss and possible engine damage may occur. Be sure the cap is properly and tightly secured.

Engine Overheating If the vehicle has a diesel engine, see the Duramax diesel supplement. The vehicle has an indicator to warn of engine overheating. There is an engine coolant temperature gauge on the vehicle's instrument cluster. See Engine Coolant Temperature Gauge on page 5-13.

If the decision is made not to lift the hood when this warning appears, but instead get service help right away, see Roadside Assistance Program on page 13-5. If the decision is made to lift the hood, make sure the vehicle is parked on a level surface. Then check to see if the engine cooling fans are running. If the engine is overheating, the fan should be running. If it is not, do not continue to run the engine and have the vehicle serviced. See if the engine cooling fan speed increases when idle speed is doubled by pushing the accelerator pedal down. If it does not, the vehicle needs service. Turn off the engine.

{ Caution

Running the engine without coolant may cause damage or a fire. Vehicle damage would not be covered by the vehicle warranty.

If Steam is Coming from the Engine Compartment { Warning

Steam from an overheated engine can burn you badly, even if you just open the hood. Stay away from the engine if you see or hear steam coming from it. Just turn it off and get everyone away from the vehicle until it cools down. Wait until there is no sign of steam or coolant before you open the hood.

(Continued)

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Warning (Continued)

If you keep driving when the engine is overheated, the liquids in it can catch fire. You or others could be badly burned. Stop the engine if it overheats, and get out of the vehicle until the engine is cool.

If No Steam is Coming from the Engine Compartment If an engine overheat warning is displayed but no steam can be seen or heard, the problem may not be too serious. Sometimes the engine can get a little too hot when the vehicle: . Climbs a long hill on a hot day. . Stops after high-speed driving. Idles for long periods in traffic. Tows a trailer. See “Driving on Grades” under Trailer Towing on page 9-51.

If the overheat warning is displayed with no sign of steam: 1. Turn the air off. 2. Turn the heater on to the highest

temperature and to the highest fan speed. Open the windows as necessary.

3. When it is safe to do so, pull off

the road, shift to P (Park) or N (Neutral) and let the engine idle.

If the engine coolant temperature gauge is no longer in the overheat zone or an overheat warning no longer displays, the vehicle can be driven. Continue to drive the vehicle slowly for about 10 minutes. Keep a safe vehicle distance from the vehicle in front. If the warning does not come back on, continue to drive normally and have the cooling system checked for proper fit and function. If the warning continues, pull over, stop, and park the vehicle right away.

Vehicle Care

10-23

If there is still no sign of steam, push down the accelerator until the engine speed is about twice as fast as normal idle speed for at least three minutes while parked. If the warning is still on, turn off the engine until it cools down. If the decision is made not to lift the hood, get service help right away.

Engine Fan The vehicle has a clutched engine cooling fan. When the clutch is engaged, the fan spins faster to provide more air to cool the engine. In most everyday driving conditions, the fan is spinning slower and the clutch is not fully engaged. This improves fuel economy and reduces fan noise. Under heavy vehicle loading, trailer towing, and/or high outside temperatures, the fan speed increases as the clutch more fully engages, so an increase in fan noise may be heard. This is normal and should not be mistaken as the transmission slipping or making

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Vehicle Care

extra shifts. It is merely the cooling system functioning properly. The fan will slow down when additional cooling is not required and the clutch partially disengages. This fan noise may be heard when starting the engine. It will go away as the fan clutch partially disengages.

Power Steering Fluid

The power steering fluid reservoir is in the engine compartment on the driver side of the vehicle. See Engine Compartment Overview on page 10-6 for reservoir location.

When to Check Power Steering Fluid It is not necessary to regularly check power steering fluid unless there is a leak suspected in the system or an unusual noise is heard. A fluid loss in this system could indicate a problem. Have the system inspected and repaired. How to Check Power Steering Fluid To check the power steering fluid: 1. Turn the key off and let the

engine compartment cool down. 2. Wipe the cap and the top of the

reservoir clean.

3. Unscrew the cap and wipe the

dipstick with a clean rag.

4. Replace the cap and completely

tighten it.

5. Remove the cap again and look at the fluid level on the dipstick.

The level should be at the COLD FILL mark. If necessary, add only enough fluid to bring the level up to the mark. To prevent contamination of brake fluid, never check or fill the power steering reservoir with the brake master cylinder cover off. What to Use

{ Caution

Use of the incorrect fluid may damage the vehicle and the damages may not be covered by the vehicle warranty. Always use the correct fluid listed in Recommended Fluids and Lubricants on page 11-12.

To determine what kind of fluid to use, see Recommended Fluids and Lubricants on page 11-12. Always use the proper fluid. Failure to use the proper fluid can cause leaks and damage hoses and seals.

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Washer Fluid

What to Use When the vehicle needs windshield washer fluid, be sure to read the manufacturer's instructions before use. If operating the vehicle in an area where the temperature may fall below freezing, use a fluid that has sufficient protection against freezing. Adding Washer Fluid

Open the cap with the washer symbol on it. Add washer fluid until the tank is full. See Engine Compartment Overview on page 10-6 for reservoir location.

{ Caution

. Do not use engine coolant

(antifreeze) in the windshield washer. It can damage the windshield washer system and paint.

. Do not mix water with

ready-to-use washer fluid. Water can cause the solution to freeze and damage the washer fluid tank and other parts of the washer system.

. When using concentrated

washer fluid, follow the manufacturer instructions for adding water.

. Fill the washer fluid tank only

three-quarters full when it is very cold. This allows for fluid expansion if freezing occurs, which could damage the tank if it is completely full.

Vehicle Care

10-25

Brakes This vehicle has disc brakes. Disc brake pads have built-in wear indicators that make a high-pitched warning sound when the brake pads are worn and new pads are needed. The sound can come and go or be heard all the time when the vehicle is moving, except when applying the brake pedal firmly.

{ Warning

The brake wear warning sound means that soon the brakes will not work well. That could lead to a crash. When the brake wear warning sound is heard, have the vehicle serviced.

{ Caution

Continuing to drive with worn-out brake pads could result in costly brake repair.

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10-26

Vehicle Care

Some driving conditions or climates can cause a brake squeal when the brakes are first applied or lightly applied. This does not mean something is wrong with the brakes. Properly torqued wheel nuts are necessary to help prevent brake pulsation. When tires are rotated, inspect brake pads for wear and evenly tighten wheel nuts in the proper sequence to torque specifications. See Capacities and Specifications on page 12-2. Brake pads should be replaced as complete sets. Brake Pedal Travel See your dealer if the brake pedal does not return to normal height, or if there is a rapid increase in pedal travel. This could be a sign that brake service might be required. Brake Adjustment Every time the brakes are applied, with or without the vehicle moving, the brakes adjust for wear.

Replacing Brake System Parts The braking system on a vehicle is complex. Its many parts have to be of top quality and work well together if the vehicle is to have really good braking. The vehicle was designed and tested with top-quality brake parts. When parts of the braking system are replaced, be sure to get new, approved replacement parts. If this is not done, the brakes might not work properly. For example, installing disc brake pads that are wrong for the vehicle, can change the balance between the front and rear brakes — for the worse. The braking performance expected can change in many other ways if the wrong replacement brake parts are installed.

Brake Fluid

The brake master cylinder reservoir is filled with DOT 3 brake fluid. See Engine Compartment Overview on page 10-6 for the location of the reservoir. There are only two reasons why the brake fluid level in the reservoir might go down:

The brake fluid level goes down because of normal brake lining wear. When new linings are installed, the fluid level goes back up.

. A fluid leak in the brake

hydraulic system can also cause a low fluid level. Have the brake hydraulic system fixed, since a leak means that sooner or later the brakes will not work well.

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Do not top off the brake fluid. Adding fluid does not correct a leak. If fluid is added when the linings are worn, there will be too much fluid when new brake linings are installed. Add or remove brake fluid, as necessary, only when work is done on the brake hydraulic system.

{ Warning

Refer to the Maintenance Schedule to determine when to check the brake fluid. See Maintenance Schedule on page 11-3. Checking Brake Fluid Check brake fluid by looking at the brake fluid reservoir. See Engine Compartment Overview on page 10-6.

If too much brake fluid is added, it can spill on the engine and/or fuel operated heater parts, if equipped. If the vehicle has a diesel engine and a fuel operated heater, see “Fuel Operated Heater (FOH)” in the diesel engine supplement. The fluid will burn if the engine is hot enough. You or others could be burned, and the vehicle could be damaged. Add brake fluid only when work is done on the brake hydraulic system. See “Checking Brake Fluid” in this section.

The fluid level should be above MIN. If it is not, have the brake hydraulic system checked to see if there is a leak.

Vehicle Care

10-27

After work is done on the brake hydraulic system, make sure the level is above the MIN but not over the MAX mark.

What to Add Use only new DOT 3 brake fluid from a sealed container. See Recommended Fluids and Lubricants on page 11-12. Always clean the brake fluid reservoir cap and the area around the cap before removing it. This helps keep dirt from entering the reservoir.

{ Warning

With the wrong kind of fluid in the brake hydraulic system, the brakes might not work well. This could cause a crash. Always use the proper brake fluid.

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Vehicle Care

{ Caution

. Using the wrong fluid can

badly damage brake hydraulic system parts. For example, just a few drops of mineral-based oil, such as engine oil, in the brake hydraulic system can damage brake hydraulic system parts so badly that they will have to be replaced. Do not let someone put in the wrong kind of fluid.

. If brake fluid is spilled on the

vehicle's painted surfaces, the paint finish can be damaged. Be careful not to spill brake fluid on the vehicle. If you do, wash it off immediately.

Battery Refer to the replacement number shown on the original battery label when a new battery is needed. See Engine Compartment Overview on page 10-6 for battery location.

{ Warning

Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling.

Vehicle Storage

{ Warning

Batteries have acid that can burn you and gas that can explode. You can be badly hurt if you are not careful. See Jump Starting on page 10-79 for tips on working around a battery without getting hurt.

Infrequent Usage: Remove the black, negative (−) cable from the battery to keep the battery from running down. Extended Storage: Remove the black, negative (−) cable from the battery or use a battery trickle charger.

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All-Wheel Drive

Transfer Case

When to Check Lubricant Refer to the Maintenance Schedule to determine how often to check the lubricant. See Maintenance Schedule on page 11-3.

How to Check Lubricant To get an accurate reading, the vehicle should be on a level surface.

2. Fill Plug If the level is below the bottom of the fill plug hole, on the transfer case, some lubricant will need to be added. Add enough lubricant to raise the level to the bottom of the fill plug hole. Use care not to overtighten the plug.

What to Use Refer to Recommended Fluids and Lubricants on page 11-12 to determine what kind of lubricant to use.

Front Axle

When to Check and Change Lubricant Refer to the Maintenance Schedule to determine how often to check the lubricant and when to change it. See Maintenance Schedule on page 11-3.

1. Drain Plug

Vehicle Care

10-29

How to Check Lubricant To get an accurate reading, the vehicle should be on a level surface.

If the level is below the bottom of the fill plug hole, some lubricant may need to be added. When the differential is cold, add enough lubricant to raise the level to 10 mm (3/8 in) below the fill plug hole.

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Vehicle Care

When the differential is at operating temperature (warm), add enough lubricant to raise the level to the bottom of the fill plug hole.

What to Use Refer to Recommended Fluids and Lubricants on page 11-12 to determine what kind of lubricant to use.

Rear Axle

When to Check Lubricant Refer to the Maintenance Schedule on page 11-3 to determine how often to check the lubricant.

How to Check Lubricant

To get an accurate reading, the vehicle should be on a level surface. If you have the 1500 Series, the proper level is from 15 mm (5/8 in) to 40 mm (1 5/8 in) below the bottom of the fill plug hole. The proper level for the 2500 and 3500 Series is from 0 to 6 mm (1/4 in) below the bottom of the fill plug hole. Add only enough fluid to reach the proper level.

What to Use Refer to Recommended Fluids and Lubricants on page 11-12 to determine what kind of lubricant to use.

Noise Control System The following information relates to compliance with federal noise emission standards for vehicles with a Gross Vehicle Weight Rating (GVWR) of more than 4 536 kg (10,000 lbs). The Maintenance Schedule provides information on maintaining the noise control system to minimize degradation of the noise emission control system during the life of the vehicle. The noise control system warranty is given in the vehicle warranty booklet. These standards apply only to vehicles sold in the United States.

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Federal law prohibits the following acts or the causing thereof: 1. The removal or rendering

inoperative by any person, other than for purposes of maintenance, repair or replacement, of any device or element of design incorporated into any new vehicle for the purpose of noise control, prior to its sale or delivery to the ultimate purchaser or while it is in use; or 2. The use of the vehicle after such device or element of design has been removed or rendered inoperative by any person. Among those acts presumed to constitute tampering are the acts listed below.

Insulation: . Removal of the noise shields or

any underhood insulation.

Engine: . Removal or rendering engine speed governor, if the vehicle has one, inoperative so as to allow engine speed to exceed manufacturer specifications.

Fan and Drive: . Removal of fan clutch, if the

vehicle has one, or rendering clutch inoperative.

. Removal of the fan shroud, if the

vehicle has one.

Air Intake: . Removal of the air cleaner

silencer.

. Modification of the air cleaner.

Exhaust: . Removal of the muffler and/or

resonator.

. Removal of the exhaust pipes

and exhaust pipe clamps.

Vehicle Care

10-31

Fuel Operated Heater (FOH) — Diesel Engine: . Removal of the muffler.

Starter Switch Check

{ Warning When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured.

1. Before starting this check, be

sure there is enough room around the vehicle.

2. Apply both the parking brake

and the regular brake. Do not use the accelerator pedal, and be ready to turn off the engine immediately if it starts.

3. Try to start the engine in each gear. The vehicle should start only in P (Park) or N (Neutral).

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10-32

Vehicle Care

If the vehicle starts in any other position, contact your dealer for service.

Automatic Transmission Shift Lock Control Function Check

{ Warning When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured.

1. Before starting this check, be

sure there is enough room around the vehicle. It should be parked on a level surface.

2. Apply the parking brake. Be

ready to apply the regular brake immediately if the vehicle begins to move.

3. With the engine off, turn the

ignition on, but do not start the engine. Without applying the regular brake, try to move the shift lever out of P (Park) with normal effort. If the shift lever moves out of P (Park), contact your dealer for service.

Ignition Transmission Lock Check If equipped with a key type ignition, while parked and with the parking brake set, try to turn the ignition to LOCK/OFF in each shift lever position.

The ignition should turn to LOCK/OFF only when the shift lever is in P (Park). The ignition key should come out only in LOCK/OFF.

Contact your dealer if service is required.

Park Brake and P (Park) Mechanism Check { Warning

When you are doing this check, the vehicle could begin to move. You or others could be injured and property could be damaged. Make sure there is room in front of the vehicle in case it begins to roll. Be ready to apply the regular brake at once should the vehicle begin to move.

Park on a fairly steep hill, with the vehicle facing downhill. Keeping your foot on the regular brake, set the parking brake.

To check the parking brake's holding ability: With the engine running and the transmission in N (Neutral), slowly remove foot pressure from the regular brake pedal. Do this until the vehicle is held by the parking brake only.

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To check the P (Park) mechanism's holding ability: With the engine running, shift to P (Park). Then release the parking brake followed by the regular brake.

Contact your dealer if service is required.

Wiper Blade Replacement Windshield wiper blades should be inspected for wear and cracking. See Maintenance Schedule on page 11-3. Replacement blades come in different types and are removed in different ways. For proper type and length, see Maintenance Replacement Parts on page 11-14.

{ Caution

Allowing the wiper arm to touch the windshield when no wiper blade is installed could damage

(Continued)

Vehicle Care

10-33

Headlamp Aiming Headlamp aim has been preset and should need no further adjustment. If the vehicle is damaged in a crash, the headlamp aim may be affected. If adjustment to the headlamps is necessary, see your dealer.

Caution (Continued)

the windshield. Any damage that occurs would not be covered by your warranty. Do not allow the wiper arm to touch the windshield.

1. Lift the wiper arm away from the

windshield.

2. Push the release lever (2) to

disengage the hook and push the wiper arm (1) out of the blade assembly (3).

3. Push the new blade assembly securely on the wiper arm until the release lever clicks into place.

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10-34

Vehicle Care

Bulb Replacement For the proper type of replacement bulbs, see Replacement Bulbs on page 10-38. For any bulb‐changing procedure not listed in this section, contact your dealer.

Halogen Bulbs

{ Warning

Halogen bulbs have pressurized gas inside and can burst if you drop or scratch the bulb. You or others could be injured. Be sure to read and follow the instructions on the bulb package.

Headlamps

Composite Headlamp

1. High-Beam Headlamp 2. Low-Beam Headlamp To remove the headlamp assembly from the vehicle and access the bulbs: 1. Open the hood. See Hood on

page 10-4.

2. Remove the two bolts from the

headlamp assembly.

3. Lift the headlamp assembly to release the lower tabs from the radiator support.

4. Turn the headlamp forward and

upward to remove it from the grille.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 6014662) - 2014 - crc - 8/26/13

Black plate (35,1)

Vehicle Care

10-35

8. Reverse the steps to reinstall the

headlamp assembly. To prevent headlamp vibration and shortened bulb life, be sure to insert the headlamp assembly tabs in the slots at the lower portion of the housing.

Sealed-Beam Headlamp

To replace one of these bulbs: 1. Remove the four screws (1) from

the headlamp retainer (2). Pull the retainer (2) out and set it aside.

2. Pull the bulb (3) forward to gain

access to the electrical connector.

5. Disconnect the electrical

connector.

6. Turn the bulb counterclockwise

7.

one-quarter turn to remove it from the headlamp assembly. Install the new bulb into the headlamp assembly and connect the electrical connector.

1. Headlamp retainer screws 2. Headlamp retainer 3. Sealed-beam headlamp bulb

3. Disconnect the electrical

connector (2) and remove the headlamp bulb (1).

4. Reverse Steps 1–3 to reinstall

the headlamp.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 6014662) - 2014 - crc - 8/26/13

Black plate (36,1)

10-36

Vehicle Care

Front Turn Signal, Sidemarker, and Parking Lamps

1. Front Parking and Turn

Signal Lamp

2. Front Sidemarker Lamp To replace the front turn signal, sidemarker, and/or parking lamp bulb(s):

1. Use a small tool to unlatch the

outboard clip on the lamp by pushing inboard and prying the lamp assembly forward.

2. Remove the lamp from the grille. 3. Turn the bulb socket

counterclockwise one-quarter turn and remove it from the lamp assembly.

4. Remove the bulb from the

socket by pulling it straight out.

5. Replace the bulb. 6. Turn the bulb socket clockwise

to reinstall it in the lamp assembly.

7. Reinstall the lamp assembly into

the grille until the outboard clip snaps into place.

Taillamps To replace a taillamp/turn signal lamp or back-up lamp bulb:

1. Remove the two inboard nuts from the inside of the taillamp assembly.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 6014662) - 2014 - crc - 8/26/13

Black plate (37,1)

5. Remove the taillamp assembly

9. Reinstall the bulb socket by

Vehicle Care

10-37

turning it clockwise into the lamp assembly.

10. Reverse Steps 1–5 to reinstall

the taillamp assembly and applique.

Center High-Mounted Stoplamp (CHMSL) The CHMSL is above the rear doors at the center of the vehicle. To replace a bulb:

from the vehicle.

2. The third nut (3) is under the applique piece (2) above the lamp. Remove the two inboard applique nuts. Pull the applique (2) straight rearward slightly to clear the studs. Then rotate the applique (2) just far enough to gain access to the outer push pins (1).

3. Carefully disconnect the push

pins (1) from the applique bracket.

4. Remove the third nut (3) from

the upper outboard side of the lamp.

6. Remove the taillamp/turn signal

lamp (1) or back-up lamp (2) bulb socket by turning it counterclockwise one-quarter turn and pulling it out of the lamp assembly.

7. Remove the bulb by pulling it

straight out.

8. Push the new bulb into the

socket.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 6014662) - 2014 - crc - 8/26/13

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Vehicle Care

1. Remove the two screws from the

CHMSL assembly.

2. Remove the CHMSL assembly. 3. Turn the bulb socket

counterclockwise one-quarter turn to remove it from the lamp assembly.

4. Pull the old bulb straight out of

the socket and push the new bulb into the socket.

5. Turn the bulb socket clockwise

one-quarter turn to install it in the lamp assembly.

6. Reinstall the CHMSL assembly

and two screws.

Do not block or damage the CHMSL when items are loaded on the roof of the vehicle.

License Plate Lamp

1. Bulb Socket 2. License Plate Bulb Assembly 3. Screws To replace one of these bulbs: 1. Remove the screws (3) that secure the license plate bulb assembly (2).

2. Turn the bulb socket (1)

counterclockwise and pull the bulb straight out of the socket. Install the new bulb.

3.

4. Reverse Steps 1 and 2 to

reinstall the license plate bulb assembly.

Replacement Bulbs

Exterior Lamp

Back-up, Rear Parking, Stoplamp, and Turn Signal Lamp Center High-Mounted Stoplamp (CHMSL) Front Parking and Turn Signal Lamp Front Sidemarker Lamp License Plate Lamp

Bulb

Number 3157KX

912LL

3157KX

194LL

194LL

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 6014662) - 2014 - crc - 8/26/13

Black plate (39,1)

Exterior Lamp

Headlamps

Composite High-Beam Headlamp Composite Low-Beam Headlamp Sealed Beam Headlamp

Bulb

Number

9005LL

9006LL

H6054

For replacement bulbs not listed here, contact your dealer.

Vehicle Care

10-39

Headlamp Wiring An electrical overload may cause the lamps to go on and off, or in some cases to remain off. Have the headlamp wiring checked right away if the lamps go on and off or remain off. Windshield Wipers If the wiper motor overheats due to heavy snow or ice, the windshield wipers will stop until the motor cools and will then restart. Although the circuit is protected from electrical overload, overload due to heavy snow or ice may cause wiper linkage damage. Always clear ice and heavy snow from the windshield before using the windshield wipers. If the overload is caused by an electrical problem and not snow or ice, be sure to get it fixed.

Electrical System

Electrical System Overload The vehicle has fuses and circuit breakers to protect against an electrical system overload. When the current electrical load is too heavy, the circuit breaker opens and closes, protecting the circuit until the current load returns to normal or the problem is fixed. This greatly reduces the chance of circuit overload and fire caused by electrical problems. Fuses and circuit breakers protect power devices in the vehicle. Replace a bad fuse with a new one of the identical size and rating. If there is a problem on the road and a fuse needs to be replaced, the same amperage fuse can be borrowed. Choose some feature of the vehicle that is not needed to use and replace it as soon as possible.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 6014662) - 2014 - crc - 8/26/13

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Vehicle Care

Fuses and Circuit Breakers The wiring circuits in the vehicle are protected from short circuits by a combination of fuses and circuit breakers. This greatly reduces the chance of fires caused by electrical problems. Look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure you replace a bad fuse with a new one of the identical size and rating.

Engine Compartment Fuse Block The fuse block is located in the engine compartment on the driver side of the vehicle.

{ Caution

Spilling liquid on any electrical component on the vehicle may damage it. Always keep the covers on any electrical component.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 6014662) - 2014 - crc - 8/26/13

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Vehicle Care

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The vehicle may not be equipped with all of the fuses, relays, and features shown.

Mini Fuse

Usage

10
11
12

13

Right Stop/Turn Trailer Spare Spare Fuel System Control Module Ignition Body Control Module 5
Body Control Module 7
Body Control Module 4
Instrument Cluster Trailer Wiring Inside Rear Vision Camera Module Spare

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10-42

Vehicle Care

Mini Fuse

Usage

Mini Fuse

Usage

Mini Fuse

Usage

14
16
17
18

19

20
21

22
23
24
25

26

27

28

Windshield Washer Horn Transmission Air Conditioning Compressor Engine Control Module Battery Spare Left Stop/Turn Trailer Spare Spare Fuel Pump Auxiliary Power Outlet Body Control Module 3
Special Equipment Option Airbag

29

30

31

32

33

34
35

36

51

Steering Wheel Sensor Engine Control Module Ignition/ Glow Plug Module Transmission Control Module Ignition Transmission Control Module Battery Rear Parking Aid Module Spare Fuel Operated Heater Module Fuel System Control Module Battery Left High-Beam Headlamp

52

53

54

55
56

58

59

61
62

63
64

Right High-Beam Headlamp Left Low-Beam Headlamp Right Low-Beam Headlamp Wiper Canister Vent Solenoid Body Control Module 2
Body Control Module 1
Spare Oxygen Sensor 2
(Post), EV Fan (Diesel) Spare Mass Air Flow/ Canister Vent

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 6014662) - 2014 - crc - 8/26/13

Black plate (43,1)

Mini Fuse

65

66

67

68

69
70
71

72

73

75
76

Usage Odd Ignition/ Injectors Daytime Running Lamps 2
(LOLVL-V22) (If Equipped) Daytime Running Lamps 1 (UPLVL +V22) (If Equipped) Auxiliary Stop Lamps Trailer Stop Lamps Spare Fuel Heater/Flex Fuel Sensor Body Control Module 6
Lighter/Data Link Connection V6 Fuel Injectors Spare

Vehicle Care

10-43

Mini Fuse

Usage

Relay

Usage

77

78

79

Oxygen Sensor 2 (Pre) Engine Control Module Powertrain Even Ignition/ Injectors

J-Case Fuse

Usage

41
42
43
44
45

46
47
74

ABS Motor ABS Module Spare Trailer Wiring Fan High Starter Solenoid Engine Control Module/Powertrain Spare Fan Lo Front Blower

15
37
38
39
40

48
49
50
57
60

Run/Crank Spare Fuel Pump Crank Air Conditioning Compressor Fan High Powertrain Spare Fan Low Fan Control

Floor Console Fuse Block The floor console fuse block is under the driver seat.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 6014662) - 2014 - crc - 8/26/13

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10-44

Vehicle Care

The vehicle may not be equipped with all of the fuses, relays, and features shown.

Mini-Fuse

Usage

F1
F2

F3

F4
F5
F6

F7

F8

F9

F10

F11

Empty Steering Wheel Sensor Auxiliary Parking Lamps (Cut-Away) Front Park Lamps Trailer Park Lamps Upfitter Park Lamps Right Rear Park Lamp Left Rear Park Lamp Outside Rearview Mirror Switch Airbag/Automatic Occupant Sensing OnStar® (If Equipped)

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 6014662) - 2014 - crc - 8/26/13

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Vehicle Care

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Mini-Fuse

Usage

Mini-Fuse

Usage

Mini-Fuse

Usage

F12
F13

F14

F15
F17

F18

F19
F20

F21

Empty Heating, Ventilation and Air Conditioning 2
Heating, Ventilation and Air Conditioning 1
Empty Outside Rearview Mirror Heater Rear Window Defogger Compass Radio/Chime/ SiriusXM Satellite Radio (If Equipped) Remote Function Actuator/Tire Pressure Monitor

F22

F23
F25

F26

F27
F30

F31
F32
F33
F34

F35

Ignition Switch/ Discrete Logic Ignition Sensor (PK3) Instrument Cluster Heating, Ventilation and Air Conditioning Control Auxiliary/Trailer Backup Taillamps Backup Upfitter Courtesy Lamps Front Door Lock Rear Door Lock Cargo Door Unlock Passenger Door Unlock Rear Passenger Door Unlock

F36
F37
F38

Driver Door Unlock Empty Empty

J-Case Fuse

Usage

F16

F24
F28

F29

Upfitter Auxiliary 1
Gas Ambulance Empty Upfitter Auxiliary 2
Reading Lamps Gas Ambulance Rear Blower

Relays

Usage

K1

K2

K3

Run (High Current Micro) Empty (High Current Micro) Park Lamps (High Current Micro)

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 6014662) - 2014 - crc - 8/26/13

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10-46

Vehicle Care

Relays

Usage

Wheels and Tires

K4

K5

K6

Upfitter Auxiliary 2
(High Current Mini) Rear Defogger (High Current Micro) Retained Accessory Power (RAP) (High Current Micro)

Circuit Breaker

CB1
CB2

Usage

Power Seats Power Windows

Tires Every new GM vehicle has high-quality tires made by a leading tire manufacturer. See the warranty manual for information regarding the tire warranty and where to get service. For additional information refer to the tire manufacturer.

{ Warning

. Poorly maintained and

improperly used tires are dangerous.

. Overloading the tires can

cause overheating as a result of too much flexing. There could be a blowout

(Continued)

Warning (Continued)

and a serious crash. See Vehicle Load Limits on page 9-10.

. Underinflated tires pose

the same danger as overloaded tires. The resulting crash could cause serious injury. Check all tires frequently to maintain the recommended pressure. Tire pressure should be checked when the tires are cold.

. Overinflated tires are more likely to be cut, punctured, or broken by a sudden impact — such as when hitting a pothole. Keep tires at the recommended pressure.

(Continued)