engine overheat CHEVROLET SILVERADO 2500 2023 User Guide

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
Driving and Operating 303
If Tow/Haul Mode is off and this setting is
on for a Trailer Profile, each time the
ignition is turned on a reminder will appear
to turn on Tow/Haul Mode when the Trailer
Profile is active.
If Tow/Haul Mode is on and this setting is
on for a Trailer Profile, the reminder will not
appear when the Trailer Profile is active.
Trailer Length Indicator
Touch Trailer Length Indicator to view the
Trailer Length Indicator settings page. If this
setting is ON a guideline is displayed in the
side mirror camera view to indicate the rear
of the attached trailer. If this setting is OFF
the guideline will not be displayed.
This setting will default to OFF if the trailer
length indicator feature is not set up. See
"Towing Assistance" for details on the setup.
Conversions and Add-Ons
Add-On Electrical Equipment
{Warning
The Data Link Connector (DLC) is used for
vehicle service and Emission Inspection/
Maintenance testing. SeeMalfunction
Indicator Lamp (Check Engine Light) 0116.
A device connected to the DLC —such as
an aftermarket fleet or driver-behavior
tracking device —may interfere with
vehicle systems. This could affect vehicle
operation and cause a crash. Such devices
may also access information stored in the
vehicle’s systems.
Caution
Some electrical equipment can damage
the vehicle or cause components to not
work and would not be covered by the
vehicle warranty. Always check with your
dealer before adding electrical equipment.
Add-on equipment can drain the vehicle's
12-volt battery, even if the vehicle is not
operating. The vehicle has an airbag system. Before
attempting to add anything electrical to the
vehicle, see
Servicing the Airbag-Equipped
Vehicle 071 and
Adding Equipment to the Airbag-Equipped
Vehicle 071.
For information on wiring auxiliary switches,
see www.gmupfitter.com or contact your
dealer.
Adding a Snow Plow or Similar
Equipment
Caution
Do not exceed 72 km/h (45 mph) with a
snow plow mounted to the vehicle. The
vehicle could overheat and be damaged.
Before installing a snow plow on the vehicle,
follow these guidelines:
Caution
If the vehicle does not have the snow
plow prep package, RPO VYU, adding a
plow can damage the vehicle, and the
repairs would not be covered by the
vehicle warranty. Unless the vehicle was
built to carry a snow plow, do not add
(Continued)

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
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304 Driving and Operating
Caution (Continued)
one to the vehicle. If the vehicle has RPO
VYU, then the payload the vehicle can
carry will be reduced when a snow plow
is installed. The vehicle can be damaged
if either the front or rear axle ratings or
the Gross Vehicle Weight Rating (GVWR)
are exceeded.
The plow the vehicle can carry depends on
many things, such as:
.The options the vehicle came with, and
the weight of those options.
.The weight and number of passengers to
be carried.
.The weight of items added to the vehicle,
like a tool box or truck cap.
.The total weight of any additional cargo
to be carried.
To safely carry a snow plow on the vehicle:
.With a snow plow attached, the engine
coolant temperature gauge may show a
higher temperature than while driving
without one. The snow plow could block
the airflow to the radiator. This could be
more noticeable as vehicle speed
increases. At speeds above 72 km/h
(45 mph), this may cause the engine coolant to overheat. Move or angle the
snow plow blade to allow increased
airflow to the radiator.
.To increase the airflow, move the snow
plow blade position.
.If driving more than 24 km/h (15 mi),
angle the plow blade position.
.Make sure the weight on the front and
rear axles does not exceed the axle rating
for each.
.Follow the snowplow manufacturer’s
recommendations for any rear ballast that
may be required. Rear ballast may be
required to ensure a proper front and rear
weight distribution ratio even though the
actual weight at the front axle may be
less than the front axel rating.
.The snowplow manufacturer or installer
can assist in determining the amount of
rear ballast required to ensure that the
vehicle with the attached snowplow does
not exceed the GVW rating, the front and
rear axle ratings, or the front and rear
weight distribution ratio.
Front axle reserve capacity is the difference
between the Front Gross Axle Weight
Rating (GAWR) and the front axle weight of
the vehicle with full fuel, passengers, and any other cargo. This is the amount of
weight that can be added to the front axle
before reaching the Front GAWR.
To calculate the amount of weight any front
accessory, such as a snow plow, is adding to
the front axle, use this formula:
(W x (A + W.B.)) /W.B.= Weight the accessory
is adding to the front axle.
Where:
IW = Weight of added accessory
IA = Distance that the accessory is in
front of the front axle
IW.B. = Vehicle Wheelbase

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
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306 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . . 307
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 307
Accessories and Modifications . . . . . . . . . 307
Vehicle Checks
Doing Your Own Service Work . . . . . . . . 308
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
Engine Compartment Overview . . . . . . . . 310
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
Engine Oil Life System . . . . . . . . . . . . . . . . . 313
Automatic Transmission Fluid . . . . . . . . . . 314
Engine Air Filter Life System . . . . . . . . . . . 314
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . 315
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 316
Engine Overheating . . . . . . . . . . . . . . . . . . . . 318
Overheated Engine Protection Operating Mode . . . . . . . . . . . . . . . . . . . . . 320
Engine Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Power Steering Fluid . . . . . . . . . . . . . . . . . . 320
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 321
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
Brake Pad Life System . . . . . . . . . . . . . . . . . 322
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Battery - North America . . . . . . . . . . . . . . . 324
Four-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . 326
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326 Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Noise Control System . . . . . . . . . . . . . . . . . 326
Starter Switch Check . . . . . . . . . . . . . . . . . . . 327
Automatic Transmission Shift Lock
Control Function Check . . . . . . . . . . . . . . 328
Ignition Transmission Lock Check . . . . . . 328
Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328
Wiper Blade Replacement . . . . . . . . . . . . . 328
Glass Replacement . . . . . . . . . . . . . . . . . . . . 329
Windshield Replacement . . . . . . . . . . . . . . 329
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 330
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . 330
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . 331
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Headlamps, Front Turn Signal, Sidemarker, and Parking Lamps . . . . . . 331
Taillamps, Turn Signal, Stoplamps, and Back-Up Lamps . . . . . . . . . . . . . . . . . . . . . . . 332
Center High-Mounted Stoplamp (CHMSL) and Cargo Lamp . . . . . . . . . . . . 333
License Plate Lamp . . . . . . . . . . . . . . . . . . . . 334
Electrical System
Electrical System Overload . . . . . . . . . . . . 334
Fuses and Circuit Breakers . . . . . . . . . . . . . 336 Engine Compartment Fuse Block . . . . . . 336
Instrument Panel Fuse Block (Left) . . . . 339
Instrument Panel Fuse Block (Right) . . . 341
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . 344
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
All-Terrain Tires . . . . . . . . . . . . . . . . . . . . . . . . 345
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . 345
Tire Designations . . . . . . . . . . . . . . . . . . . . . . 346
Tire Terminology and Definitions . . . . . . 347
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Tire Pressure Monitor System . . . . . . . . . 350
Tire Pressure Monitor Operation . . . . . . . 351
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . . 355
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 356
When It Is Time for New Tires . . . . . . . . 358
Buying New Tires . . . . . . . . . . . . . . . . . . . . . 359
Different Size Tires and Wheels . . . . . . . 360
Uniform Tire Quality Grading . . . . . . . . . 360
Wheel Alignment and Tire Balance . . . . 361
Wheel Replacement . . . . . . . . . . . . . . . . . . . 361
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 363
Tire Changing . . . . . . . . . . . . . . . . . . . . . . . . . 364
Full-Size Spare Tire . . . . . . . . . . . . . . . . . . . . 374
Jump Starting
Jump Starting - North America . . . . . . . . 374

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
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314 Vehicle Care
The oil life system can also be reset as
follows:1. Display the oil life percentage on the DIC. See Driver Information Center (DIC)
(Base Level) 0124 or
Driver Information Center (DIC) (Midlevel
and Uplevel) 0125.
2. Fully press the accelerator pedal slowly three times within five seconds.
3. If the display changes to 100%, the system is reset.
If the vehicle has a CHANGE ENGINE OIL
SOON message and it comes back on when
the vehicle is started and/or the oil
life percentage is near 0%, the engine oil
life system has not been reset. Repeat the
procedure.
Automatic Transmission Fluid
When to Check and Change Automatic
Transmission Fluid
It is usually not necessary to check the
transmission fluid level. The only reason for
fluid loss is a transmission leak or
overheated transmission. This vehicle is not
equipped with a transmission fluid level
dipstick. There is a special procedure for
checking and changing the transmission fluid in these vehicles. Because this procedure is
difficult, this should be done at the dealer.
Contact the dealer for additional information
or the procedure can be found in the service
manual. See
Publication Ordering
Information 0416.
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 correct automatic transmission
fluid. See Recommended Fluids and
Lubricants 0401.
Change the fluid and filter at the scheduled
maintenance intervals listed in Maintenance
Schedule 0392. Be sure to use the
transmission fluid listed in Recommended
Fluids and Lubricants 0401.
Engine Air Filter Life System
If equipped, this feature provides the engine
air filter’s remaining life and best timing for
a change. The timing to change an engine
air filter depends on driving and
environmental conditions.
When to Change the Engine Air Filter
When the Driver Information Center (DIC)
displays a message to replace the engine air
filter at the next oil change, follow this
timing.
When the DIC displays a message to replace
the engine air filter soon, replace the engine
air filter at the earliest convenience.
The system must be reset after the engine
air filter is changed.
If the DIC displays a message to check the
engine air filter system, see your dealer.
How to Reset the Engine Air Filter Life
System
To reset:
1. Place the vehicle in P (Park).
2. Display the Air Filter Life on the DIC. See Driver Information Center (DIC) (Base
Level) 0124 or
Driver Information Center (DIC) (Midlevel
and Uplevel) 0125.
3. Press
Ton the steering wheel, or press
the trip odometer reset stem if the
vehicle does not have DIC controls, to
move to the Reset/Disable display area.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
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316 Vehicle Care
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 driving.
Cooling System
If the vehicle has the Duramax diesel
engine, see the Duramax diesel supplement.
The cooling system allows the engine to
maintain the correct working temperature.
{Warning
An underhood electric fan can start up
even when the engine is not running and
can cause injury. Keep hands, clothing,
and tools away from any underhood
electric fan.
1. Engine Cooling Fan (Out of View)
2. Coolant Surge Tank and Pressure Cap
{Warning
Do not touch heater, radiator, a/c pipes
or hoses, or other engine parts. They can
be very hot and can burn you. Do not
run the engine if there is a leak; all
coolant could leak out. That could cause
an engine fire and can burn you. Fix any
leak before driving 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, seeEngine Overheating 0318.
What to Use
{Warning
Plain water, or other liquids such as
alcohol, can boil before the proper
coolant mixture will. With plain water or
the wrong mixture, the engine could get
too hot but there would not be an
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. This mixture:
.Gives freezing protection down to −37 °C
(−34 °F), outside temperature.
.Gives boiling protection up to 129 °C
(265 °F), engine temperature.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
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Vehicle Care 317
.Protects against rust and corrosion.
.Will not damage aluminum parts.
.Helps keep the proper engine
temperature.
Caution
Do not use anything other than a mix of
DEX-COOL coolant that meets GM
Standard GMW3420 and clean, drinkable
water. Anything else can cause damage
to the engine cooling system and the
vehicle, which would not be covered by
the vehicle warranty.
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.
Checking Coolant
The coolant surge tank is in the engine
compartment on the driver side of the
vehicle. See Engine Compartment Overview
0 310. 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 indicated 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 indicated mark, see the
following sections on how to add coolant to
the coolant surge tank following.
How to Add Coolant to the Coolant
Surge Tank
If the vehicle has a diesel engine, see
“Cooling System”
in the Duramax diesel
supplement for the proper coolant fill
procedure.
{Warning
Spilling coolant on hot engine parts can
burn you. Coolant contains ethylene
glycol and it will burn if the engine parts
are hot enough.
{Warning
Plain water, or other liquids such as
alcohol, can boil before the proper
coolant mixture will. With plain water or
the wrong mixture, the engine could get
too hot but there would not be an
overheat warning. The engine could catch
fire and you or others could be burned.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
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318 Vehicle Care
{Warning
Steam and scalding liquids from a hot
cooling system are under pressure.
Turning the pressure cap, even a little,
can cause them to come out at high
speed and you could be burned. Never
turn the cap when the cooling system,
including the pressure cap, is hot. Wait
for the cooling system and pressure cap
to cool.
Caution
Failure to follow the specific coolant fill
procedure could cause the engine to
overheat and could cause system
damage. If coolant is not visible in the
surge tank, contact your dealer.
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.
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 indicated 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 engine damage may
occur. Be sure the cap is properly and
tightly secured.
Engine Overheating
If the vehicle has the Duramax diesel
engine, see the Duramax diesel supplement.
Caution
Do not run the engine if there is a leak
in the engine cooling system. This can
cause a loss of all coolant and can
damage the system and vehicle. Have
any leaks fixed right away.
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 0113.
In addition, there are ENGINE OVERHEATED
STOP ENGINE, ENGINE OVERHEATED IDLE
ENGINE, and ENGINE POWER IS REDUCED
messages in the Driver Information
Center (DIC).

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
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Vehicle Care 319
If the decision is made not to lift the hood
when this warning appears, get service help
right away. SeeRoadside Assistance Program
0 412.
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 fans 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.
If the engine or transmission detects an
impending hot fluid condition, then the
transmission may force upshifts to limit
temperatures. Downshifts may also be
prevented in this instance. Normal operation
may continue unless the display indicates
there is a hot condition and engine should
be idled.If Steam is Coming from the Engine
Compartment
{Warning
Steam and scalding liquids from a hot
cooling system are under pressure.
Turning the pressure cap, even a little,
can cause them to come out at high
speed and you could be burned. Never
turn the cap when the cooling system,
including the pressure cap, is hot. Wait
for the cooling system and pressure cap
to 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 Towing0278.
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 as

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
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320 Vehicle Care
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.
Overheated Engine Protection
Operating Mode
If an overheated engine condition exists and
the ENGINE POWER IS REDUCED message
displays, an overheat protection mode which
alternates firing groups of cylinders helps to
prevent engine damage. In this mode, a loss
in power and engine performance will be
noticed. This operating mode allows the
vehicle to be driven to a safe place in an
emergency. Driving extended distances and/
or towing a trailer in the overheat
protection mode should be avoided.
If the engine or transmission detects an
impending hot fluid condition, then the
transmission may force upshifts to limit
temperatures. Downshifts may also be
prevented in this instance. Normal operationmay continue unless the display indicates
there is a hot condition and engine should
be idled.
Caution
After driving in the overheated engine
protection operating mode, the engine oil
will be severely degraded. Any repairs
performed before the engine is cool may
cause engine damage. Allow the engine
to cool before attempting any repair.
Repair the cause of coolant loss, change
the oil, and reset the oil life system. See
Engine Oil
0311.
Engine Fan
If the vehicle has the Duramax diesel
engine, see the Duramax diesel supplement.
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 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 0310 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

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
Index 431
DrivingAssistance Systems . . . . . . . . . . . . . . . . . . . . 263
Better Fuel Economy . . . . . . . . . . . . . . . . . . . 210
Characteristics and Towing Tips . . . . . . . . 274
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Hill and Mountain Roads . . . . . . . . . . . . . . 218
If the Vehicle is Stuck . . . . . . . . . . . . . . . . . 219
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 213
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 213
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 220
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
E
E85 or FlexFuel . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Electric Parking Brake . . . . . . . . . . . . . . . . . . . . 245
Electric Parking Brake Light . . . . . . . . . . . . . . . 118
Electrical Equipment, Add-On . . . . . . . . . . . . 303
Electrical System
Engine Compartment Fuse Block . . . . . . . 336
Fuses and Circuit Breakers . . . . . . . . . . . . . 336
Instrument Panel Fuse Block . . . . . . 339, 341
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334 Electronic Stability Control (ESC) Off
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 421
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . 315
Check Light (Malfunction Indicator) . . . . . 116
Compartment Overview . . . . . . . . . . . . . . . . 310
Coolant Temperature Gauge . . . . . . . . . . . . 113
Coolant Temperature Warning Light . . . . 121
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 316
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . 408
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 313
Oil Pressure Gauge . . . . . . . . . . . . . . . . . . . . . 112
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . 122
Overheated ProtectionOperating Mode . . . . . . . . . . . . . . . . . . . . . 320
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 318
Power Messages . . . . . . . . . . . . . . . . . . . . . . . 130
Running While Parked . . . . . . . . . . . . . . . . . 235
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Engine Air Filter Life System . . . . . . . . . . . . . .314
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Equipment, Towing . . . . . . . . . . . . . . . . . . . . . . .281
Event Data Recorders . . . . . . . . . . . . . . . . . . . . 419 Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Extended Parking . . . . . . . . . . . . . . . . . . . . . . . . 234
Extender, Seat Belt . . . . . . . . . . . . . . . . . . . . . . . .61
Exterior Cargo Lamps . . . . . . . . . . . . . . . . . . . . 144
Exterior Lamp Controls . . . . . . . . . . . . . . . . . . . 139
Exterior Lamps Off Reminder . . . . . . . . . . . . . 141
Exterior Lighting Battery Saver . . . . . . . . . . .147
F
Fan
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Filter,
Engine Air Cleaner . . . . . . . . . . . . . . . . . . . . . 315
Fixed Mast Antenna . . . . . . . . . . . . . . . . . . . . . .158
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Flashers, Hazard Warning . . . . . . . . . . . . . . . . .142
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Floor Console Storage . . . . . . . . . . . . . . . . . . . . . 98
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389
Fluid
Automatic Transmission . . . . . . . . . . . . . . . 314
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Power Steering . . . . . . . . . . . . . . . . . . . . . . . . 320
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143