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Black plate (16,1)
10-16
Vehicle Care
{ 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
(Continued)
Caution (Continued)
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 10-19.
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.
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
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Black plate (17,1)
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 11-13.
Never dispose of engine coolant by putting it in the trash, or by 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.
Vehicle Care
10-17
Checking Coolant The coolant surge tank is in the engine compartment on the passenger side of the vehicle. See Engine Compartment Overview on page 10-6. The vehicle must be on a level surface when checking the coolant level. Check to see if coolant is visible in the coolant surge tank. If the coolant inside the coolant surge tank is boiling, wait until it cools down. The coolant level should be at or above the FULL COLD mark. If it is not, there may be a leak in the cooling system. If coolant is visible but the coolant level is not at or above the FULL COLD mark, see “How to Add Coolant to the Coolant Surge Tank,” following.
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
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Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
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Black plate (18,1)
10-18
Vehicle Care
{ Caution
This vehicle has a specific coolant fill procedure. Failure to follow this procedure could cause the engine to overheat and be severely damaged.
{ 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 no coolant is visible in the surge tank, add coolant.
1. Remove the coolant surge tank pressure cap when the cooling system, including the coolant surge tank pressure cap and upper radiator hose, is no longer hot. Turn the pressure cap slowly counterclockwise about one full turn. 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
slowly, and remove it.
3. Fill the coolant surge tank with the proper mixture to the FULL COLD mark.
How to Add Coolant to the Coolant Surge Tank
{ 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.
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Black plate (19,1)
4. With the coolant surge tank
pressure cap off, start the engine and let it run until the engine coolant temperature gauge indicates approximately 90°C (195°F). By this time, the coolant level inside the coolant surge tank may be lower. If the level is lower, add more of the proper mixture to the coolant surge tank until the level reaches the FULL COLD mark.
5. Replace the pressure cap tightly. 6. Verify coolant level after the
engine is shut off and the coolant is cold. If necessary, repeat coolant fill procedure Steps 1–6.
{ 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
{ Caution
Running the engine without coolant may cause damage or a fire. Vehicle damage would not be covered by the vehicle warranty.
The vehicle has several indicators to warn of engine overheating. There is a coolant temperature gauge in the vehicle's instrument cluster. See Engine Coolant Temperature Gauge on page 5-18.
Vehicle Care
10-19
In addition, there are ENGINE OVERHEATED STOP ENGINE, ENGINE OVERHEATED IDLE ENGINE, and ENGINE POWER IS REDUCED messages in the Driver Information Center (DIC). See Engine Cooling System Messages on page 5-37 and Engine Power Messages on page 5-39. If the decision is made not to lift the hood when this warning appears, get service help right away. If the decision is made to lift the hood, make sure the vehicle is parked on a level surface. Check to see if the engine cooling fan(s) are running. If the engine is overheating, the fans should be running. If they are not, do not continue to run the engine and have the vehicle serviced.
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
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Black plate (20,1)
10-20
Vehicle Care
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. 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 The ENGINE OVERHEATED STOP ENGINE or the ENGINE OVERHEATED IDLE ENGINE message, along with a low coolant condition, can indicate a serious problem. If there is an engine overheat warning, but no steam is 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 Trailer Towing on page 9-77.
If the ENGINE OVERHEATED STOP ENGINE or the ENGINE OVERHEATED IDLE ENGINE message appears with no sign of steam, try this for a minute or so: 1. Turn the air conditioning 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 temperature overheat 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 fill and function. If the warning continues, pull over, stop, and park the vehicle right away. If there is still no sign of steam and the vehicle is equipped with an engine driven cooling fan, push down the accelerator until the engine speed is about twice as fast
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
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Black plate (21,1)
as normal idle speed for at least five minutes while the vehicle is parked. If the warning is still there, turn off the engine and get everyone out of the vehicle until it cools down. If there is no sign of steam, idle the engine for five minutes while parked. If the warning is still displayed, turn off the engine until it cools down.
Engine Fan If the vehicle has electric cooling fans, the fans may be heard spinning at low speed during most everyday driving. The fans may turn off if no cooling is required. Under heavy vehicle loading, trailer towing, high outside temperatures, or operation of the air conditioning system, the fans may change to high speed and an increase in fan noise may be heard. This is normal and indicates that the cooling system is functioning properly.
The fans will change to low speed when additional cooling is no longer required. The electric engine cooling fans may run after the engine has been turned. off. This is normal and no service is required.
Washer Fluid
What to Use When windshield washer fluid needs to be added, be sure to read the manufacturer's instructions before use. Use a fluid that has sufficient protection against freezing in an area where the temperature may fall below freezing. Adding Washer Fluid The vehicle has a low washer fluid message on the DIC that comes on when the washer fluid is low. The message is displayed for 15 seconds at the start of each ignition cycle. When the WASHER FLUID LOW ADD FLUID message
Vehicle Care
10-21
displays, washer fluid will need to be added to the windshield washer fluid reservoir.
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
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Black plate (22,1)
10-22
Vehicle Care
Caution (Continued)
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.
{ 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.
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.
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 may be required. Replacing Brake System Parts Always replace brake system parts with new, approved replacement parts. If this is not done, the brakes may not work properly. The braking performance expected can change in many other ways if the wrong replacement brake parts are installed or parts are improperly installed.
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Black plate (23,1)
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.
Vehicle Care
10-23
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 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.
When the brake fluid falls to a low level, the brake warning light comes on. See Brake System Warning Light on page 5-24.
The fluid level should be above MIN. If it is not, have the brake hydraulic system checked to see if there is a leak.
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Black plate (24,1)
10-24
Vehicle Care
After work is done on the brake hydraulic system, make sure the level is above 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 11-13. 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.
{ 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 The original equipment battery is maintenance free. Do not remove the cap and do not add fluid. Refer to the replacement number 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.
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
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Black plate (25,1)
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.
Four-Wheel Drive
Transfer Case
When to Check Lubricant Refer to Maintenance Schedule on page 11-3 to determine when to check the lubricant.
How to Check Lubricant
Automatic Transfer Case
1. Fill Plug 2. Drain Plug
Vehicle Care
10-25
To get an accurate reading, the vehicle should be on a level surface. If the level is below the bottom of the fill plug (1) hole, located 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 (1) hole. Use care not to overtighten the plug.
When to Change Lubricant Refer to Maintenance Schedule on page 11-3 to determine how often to change the lubricant.
What to Use Refer to Recommended Fluids and Lubricants on page 11-13 to determine what kind of lubricant to use.
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
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Black plate (26,1)
10-26
Vehicle Care
Front Axle
When to Check and Change Lubricant It is not necessary to regularly check front axle fluid unless a leak is suspected, or an unusual noise is heard. A fluid loss could indicate a problem. Have it inspected and repaired.
How to Check Lubricant To get an accurate reading, the vehicle should be on a level surface.
1. Fill Plug 2. Drain Plug
. When the differential is cold, add
enough lubricant to raise the level from 0 mm (0 in) to 3.2 mm (1/8 in) below the fill plug (1) hole.
. When the differential is at
operating temperature (warm), add enough lubricant to raise the level to the bottom of the fill plug (1) hole.
What to Use Refer to Recommended Fluids and Lubricants on page 11-13 to determine what kind of lubricant to use.
Rear Axle
When to Check Lubricant It is not necessary to regularly check rear axle fluid unless a leak is suspected or an unusual noise is
heard. A fluid loss could indicate a problem. Have it inspected and repaired. All axle assemblies are filled by volume of fluid during production. They are not filled to reach a certain level. When checking the fluid level on any axle, variations in the readings can be caused by factory fill differences between the minimum and the maximum fluid volume. Also, if a vehicle has just been driven before checking the fluid level, it may appear lower than normal because fluid has traveled out along the axle tubes and has not drained back to the sump area. Therefore, a reading taken five minutes after the vehicle has been driven will appear to have a lower fluid level than a vehicle that has been stationary for an hour or two. The rear axle assembly must be supported on a flat, level surface to get a true reading.
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
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Black plate (27,1)
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 lb). The noise control system warranty is given in your warranty manual. These standards apply only to vehicles sold in the United States. 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
Vehicle Care
10-27
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.
How to Check Lubricant
To get an accurate reading, the vehicle should be on a level surface. The proper level is 1.0 mm to 19.0 mm (0.04 in to 0.7 in) below the bottom of the fill hole, located on the rear axle. Add only enough fluid to reach the proper level. What to Use Refer to Recommended Fluids and Lubricants on page 11-13 to determine what kind of lubricant to use.
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
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Black plate (28,1)
10-28
Vehicle Care
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.
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
1. Before starting this check, be
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). 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.
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 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).
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
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Black plate (29,1)
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. 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 or cracking. For the proper type and size, see Maintenance Replacement Parts on page 11-15.
Vehicle Care
10-29
Front Wiper Blade Replacement To replace the wiper blade assembly: 1. Pull the windshield wiper assembly away from the windshield.
2. Lift up on the latch in the middle
of the wiper blade where the wiper arm attaches.
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
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Black plate (30,1)
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.
10-30
Vehicle Care
3. With the latch open, pull the wiper blade down toward the windshield far enough to release it from the J-hooked end of the wiper arm.
4. Remove the wiper blade.
Allowing the wiper blade arm to touch the windshield when no wiper blade is installed could damage the windshield. Any damage that occurs would not be covered by the vehicle warranty. Do not allow the wiper blade arm to touch the windshield.
5. Reverse Steps 1–3 for wiper
blade replacement.
Rear Wiper Blade Replacement To replace the rear wiper blade: 1. Pull the wiper blade assembly
away from the backglass. The rear wiper blade will not lock in a vertical position so care should be used when pulling it away from the vehicle.
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 in the wiper arm hook until the release lever clicks into place.
4. Return the wiper arm and blade assembly to the rest position on the glass.
Glass Replacement If the windshield or front side glass must be replaced, see your dealer to determine the correct replacement glass.
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
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Black plate (31,1)
Bulb Replacement For the proper type of replacement bulbs, see Replacement Bulbs on page 10-35. 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.
Vehicle Care
10-31
High Intensity Discharge (HID) Lighting
Headlamps
{ Warning
The high intensity discharge lighting system operates at a very high voltage. If you try to service any of the system components, you could be seriously injured. Have your dealer or a qualified technician service them.
After an HID headlamp bulb has been replaced, the beam might be a slightly different shade than it was originally. This is normal.
LED Lighting This vehicle has several LED lamps. For replacement of any LED lighting assembly, contact your dealer.
Driver Side 1. Low-Beam Headlamp 2. High-Beam Headlamp 3. Turn Signal Lamp See your dealer for passenger side replacement. Headlamp 1. Open the hood. See Hood on
page 10-5
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
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Black plate (32,1)
10-32
Vehicle Care
2. Remove the headlamp bulb assembly cover by turning it counterclockwise.
3. Turn the bulb socket
counterclockwise to remove it from the headlamp assembly and pull it straight out.
4. Unplug the electrical connector
from the old bulb by releasing the clip on the bulb socket.
Fog Lamps
To replace the front fog lamp bulb: 1. Locate the fog lamp under the
front bumper.
2. Disconnect the electrical
connector from the fog lamp bulb assembly by pressing the connector release.
3. Turn the bulb counter clockwise
to remove it from the housing.
Front Turn Signal Lamps 1. Open the hood. See Hood on
page 10-5
2. Reach in and access the bulb socket from inside the engine compartment.
3. Turn the bulb socket
counterclockwise to remove it from the headlamp assembly and pull it straight out.
4. Remove the bulb by pulling it straight out of the socket bulb socket.
5. Replace it with a new bulb.
6. Reinstall the new bulb socket
into the headlamp assembly and turn it clockwise to secure.
Taillamps, Turn Signal, Stoplamps, and Back-Up Lamps
1. Back-up Lamp 2. Stoplamp/Turn Signal Lamp
The taillamp on this vehicle is an LED. For replacement, contact your dealer.
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
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Black plate (33,1)
Vehicle Care
10-33
6. Pull the bulb straight out from
the socket.
7. Press a new bulb into the
socket, insert it into the taillamp assembly, and turn the bulb socket clockwise until it clicks. 8. Reinstall the taillamp assembly
and tighten the screws.
9. Reinstall the taillamp cover by
snapping it into place.
To replace one of these bulbs: 1. Open the liftgate. See Liftgate
on page 2-19.
3. Remove the two screws from the
taillamp assembly.
4. Pull the taillamp assembly
straight back to remove.
5. Turn the bulb socket
counterclockwise to remove it from the taillamp assembly.
2. Remove the taillamp closeout cover from the lamp assembly by pulling rearward from the top and bottom at the same time to unfasten the snap tabs.
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
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Black plate (34,1)
10-34
Vehicle Care
License Plate Lamp
Passenger Side Shown, Driver
Side Similar
1. Bulb Socket 2. Bulb 3. Lamp Assembly
To replace one of these bulbs: 1. Push the lamp assembly (3)
toward the center of the vehicle. 2. Pull the lamp assembly down to
remove.
3. Turn the bulb socket (1)
counterclockwise to remove it from the lamp assembly (3).
4. Pull the bulb (2) straight out of
the bulb socket (1).
5. Push the replacement bulb
straight into the bulb socket and turn the bulb socket clockwise to install it into the lamp assembly.
6. Push the lamp assembly back
into position until the release tab locks into place.
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
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Black plate (35,1)
Replacement Bulbs
Electrical System
Exterior Lamp
Back-up Lamp Fog Lamp Front Turn Signal Lamp High-Beam Headlamp (Base and Uplevel) Low-Beam Headlamp (Base) License Plate Lamp Stoplamp/Turn Signal Lamp
Bulb
Number
921
PSX26W WY21W
9005 LL
H11 LL
W5W
7440 LL and
WY21W
For replacement bulbs not listed here, contact your dealer.
Electrical System Overload The vehicle has fuses to protect against an electrical system overload. Fuses also 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, there are some spare fuses and a fuse puller in the Instrument Panel Fuse Block. The same amperage fuse can also be borrowed. Choose some feature of the vehicle that is not needed to use and replace it as soon as possible.
Vehicle Care
10-35
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.
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
(GMNA-Localizing-U.S./
Black plate (36,1)
10-36
Vehicle Care
Fuses The wiring circuits in the vehicle are protected from short circuits by fuses. 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. Fuses of the same amperage can be temporarily borrowed from another fuse location, if a fuse goes out. Replace the fuse as soon as you can.
Engine Compartment Fuse Block The engine compartment fuse block is 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.
A fuse puller is available in the left instrument panel fuse block.
Lift the cover to access the fuse block.
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
(GMNA-Localizing-U.S./
Black plate (37,1)
Vehicle Care
10-37
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
(GMNA-Localizing-U.S./
Black plate (38,1)
10-38
Vehicle Care
Item
Usage
10
13
14
17Electric Running Boards Antilock Brake System Pump Interior BEC LT1
MBS Passenger Suspension Leveling Compressor 4WD Transfer Case Electronic Control Electric Parking Brake Interior BEC LT2
Rear BEC 1
MBS DriverItem 21
23
24
25
26
28
29
30
31
34
35Usage ALC Exhaust Solenoid Integrated Chassis Control Module Real Time Dampening Fuel Pump Power Module Spare/Battery Regulated Voltage Control Upfitter 2
Upfitter 2 Relay Wiper TIM Back-up Lamps Antilock Brake System ValveItem 36
37
3940
41
4243
44
4547
48
49Usage Trailer Brakes Upfitter 3 Relay Trailer Stop/Turn Right Trailer Stop/ Turn Left Trailer Park Lamps Right Parking Lamps Left Parking Lamps Upfitter 3
Automatic Level Control Run/Crank Upfitter 4
Upfitter 4 Relay Reverse LampsChevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
(GMNA-Localizing-U.S./
Black plate (39,1)
Item 51
59
6063
67
69
7072
7475
76
77
Usage Parking Lamp Relay Euro Trailer Air Conditioning Control Upfitter 1
Trailer Battery RC Upfitter 3 and 4
VBAT Upfitter 3 and 4
Upfitter 1 Relay Engine Control Module Ignition Miscellaneous Ignition Spare Transmission Ignition RC Upfitter 1 and 2Item 78
83
84
87
88
89
90
91
9293
94
95100
101Usage VBAT Upfitter 1 and 2
Euro Trailer RC Run/Crank Relay Engine Injector A – Odd Injector B – Even Oxygen Sensor B Throttle Control Engine Control Module Relay Horn Fog Lamps High-Beam Headlamps Oxygen Sensor A Engine Control ModuleVehicle Care
10-39
Item 102
103
104
107
109
112
114115
116
121122
123Usage
Engine Control Module/ Transmission Control Module Auxiliary Interior Heater Starter Aero Shutter Police Upfitter Starter Relay Front Windshield Washer Rear Window Washer Cooling Fan Left Right HID Headlamp Left HID Headlamp Cooling Fan Right
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
(GMNA-Localizing-U.S./
Black plate (40,1)
10-40
Vehicle Care
Instrument Panel Fuse Block (Left)
The left instrument panel fuse block access door is on the driver side edge of the instrument panel. Pull off the cover to access the fuse block.
The vehicle may not be equipped with all of the fuses, relays, and features shown.
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
(GMNA-Localizing-U.S./
Black plate (41,1)
Vehicle Care
10-41
Number
Usage
Number
Usage
Number
Usage
10
11
12
Not Used Not Used Not Used Accessory Power Outlet 1
Retained Accessory Power/Accessory APO/BATT Universal Garage Door Opener/Inside Rear View Mirror SEO Retained Accessory Power Not Used Body Control Module 3
Body Control Module 5
Steering Wheel Controls Backlighting13
14
15
1617
1819
20
21
22
23
24Not Used Not Used Not Used Discrete Logic Ignition Sensor VPM Mirror Window Module Body Control Module 1
Front Bolster (if equipped) Not Used Not Used Not Used Heater, Ventilation and Air Conditioning Ignition/Heater, Ventilation and Air Conditioning Auxiliary25
26
27
28
29
30
31
32
3334
Instrument Cluster Ignition/Sensing Diagnostic Module Ignition Tilt Column/SEO, Tilt Column Lock 1/SEO Data Link Connector/ Driver Seat Module Passive Entry/Passive Start/Heater, Ventilation and Air Conditioning Battery Content Theft Not Used Not Used Not Used SEO/Automatic Level Control Park Enable Electric Adjustable Pedal (if equipped)
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
(GMNA-Localizing-U.S./
Black plate (42,1)
10-42
Vehicle Care
Number
Usage
Number
Usage
35
36
3738
39
40
41
4243
44
45
46Not Used Miscellaneous R/C Heated Steering Wheel Steering Column Lock 2 (if equipped) Instrument Cluster Battery Not Used Not Used Euro Trailer (if equipped) Left Doors Driver Power Seat Not Used Right Heated/ Cooled Seat
47
48
49
5051
5253
54
55
56Left Heated/ Cooled Seat Not Used Not Used Accessory Power Outlet 2
Not Used Retained Accessory Power/Accessory Relay Run/Crank Relay Not Used Not Used Not UsedInstrument Panel Fuse Block (Right)
The right instrument panel fuse block access door is on the passenger side edge of the instrument panel. Pull off the cover to access the fuse block.
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
(GMNA-Localizing-U.S./
Black plate (43,1)
Vehicle Care
10-43
Number
Usage
10
11
1213
14
15
16Not Used Not Used Not Used Accessory Power Outlet 4
Not Used Not Used Not Used Glove Box Not Used Not Used Not Used Steering Wheel Controls Body Control Module 8
Not Used Not Used Not UsedThe vehicle may not be equipped with all of the fuses, relays, and features shown.
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
(GMNA-Localizing-U.S./
Black plate (44,1)
10-44
Vehicle Care
Number
Usage
Number
Usage
Number
Usage
17
18
1920
21
22
23
24
25
26
2728
29
30
31Not Used Not Used Body Control Module 4
Rear Seat Entertainment Sunroof Not Used Not Used Not Used Not Used Info/Airbag Spare/RF WDW RN SW Obstacle Detection/USB Radio Not Used Not Used32
33
34
35
36
37
3839
40
41
42
43
4445
46Not Used Not Used Not Used Not Used SEO B2
SEO Body Control Module 2
A/C Inverter Not Used Not Used Not Used Not Used Right Door Window Motor Front Blower Body Control Module 647
48
49
5051
5253
54
55
56Body Control Module 7
Amplifier Right Front Seat Accessory Power Outlet 3
Not Used Retained Accessory Power/Accessory Relay Not Used Not Used Not Used Not UsedChevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
(GMNA-Localizing-U.S./
Black plate (45,1)
Rear Compartment Fuse Block
The rear compartment fuse block is behind the access panel on the left side of the compartment. Pull the panel out by grabbing the finger access slot at the rear edge.
The vehicle may not be equipped with all of the fuses, relays, and features shown.
Vehicle Care
10-45
ISO Mini Relays
Usage
Rear Defogger
Micro Fuses
Usage
10
11
19Heated Second Row Seat Left Heated Second Row Seat Right Heated Mirrors Liftgate Glass Breakage Liftglass Liftgate Module Logic Rear Wiper Rear Heater, Ventilation and Air Conditioning Blower Second Row Seat Rear Fog Lamp (if equipped)
Chevrolet 2015i Tahoe/Suburban Owner Manual Canada/Mexico-8431502) - 2015 - CRC - 8/8/14
(GMNA-Localizing-U.S./
Black plate (46,1)
10-46
Vehicle Care
M-Type Fuses
Usage
Liftgate Module Third Row Seat Rear Accessory Power Outlet Rear Defogger
Usage
12
13
1415
Ultra Micro Relays
16
Liftgate
Micro Relays
17
1819
Usage
Liftglass Rear Fog Lamp (if equipped) Heated Mirrors
Wheels and Tires
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.
(Continued)
Warning (Continued)
There could be a blowout and a serious crash. See Vehicle Load Limits on page 9-14. . 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)
Chevrolet 2015i Tahoe/Suburban Owner Manual
