coolant temperature CHEVROLET SILVERADO 2024 User Guide

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-16908339) - 2024 - CRC - 12/12/22
Driving and Operating 301
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 mph),
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 axle rating.
.The snowplow manufacturer or installer
can assist in determining the amount of
rear ballast required to ensure that thevehicle with the attached snowplow does
not exceed the GVW rating, the front and
rear axle ratings, or the front and rear
weight distribution ratio (refer to the GM
Upfitter Manual).
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
For example, adding a 318 kg (700 lb) snow
plow actually adds more than 318 kg (700 lb)
to the front axle. Using the formula, if the
snow plow is 122 cm (4 ft) in front of the
front axle and the wheelbase is 305 cm
(10 ft), then: IW = 318 kg (700 lb)
IA = 122 cm (4 ft)
IW.B. = 305 cm (10 ft)
(W x (A + W.B.)/W.B. = (318 x (122 + 305))/305
= 445 kg (980 lb)
This means if the front axle reserve capacity
is more than 445 kg (980 lb), the snow plow
could be added without exceeding the
front GAWR.
Heavier equipment can be added on the
front of the vehicle if less cargo or fewer
passengers are carried, or by positioning
cargo toward the rear. This reduces the load

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-16908339) - 2024 - CRC - 12/5/22
Vehicle Care 313
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 0315.
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.
S./Canada/Mexico-16908339) - 2024 - CRC - 12/5/22
314 Vehicle Care
.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
0 307. 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.
S./Canada/Mexico-16908339) - 2024 - CRC - 12/5/22
Vehicle Care 315
{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.
S./Canada/Mexico-16908339) - 2024 - CRC - 12/5/22
316 Vehicle Care
If the decision is made not to lift the hood
when this warning appears, get service help
right away. SeeRoadside Assistance Program
0 402.
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 Towing0274.
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.
S./Canada/Mexico-16908339) - 2024 - CRC - 12/5/22
Vehicle Care 317
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
0308.
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 0307 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-16908339) - 2024 - CRC - 12/5/22
420 Index
Camera (cont'd)Truck Bed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Canadian Vehicle Owners . . . . . . . . . . . . . . . . . . .2
Capacities and Specifications . . . . . . . . . . . . . 396
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . 217
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . 202
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Caution, Danger, and Warning . . . . . . . . . . . . . .2
Center High-Mounted Stoplamp (CHMSL)and Cargo Lamp . . . . . . . . . . . . . . . . . . . . . 329
Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Center Console
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Chains, Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358
Charging System Light . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Wireless . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Check Engine Light (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Child Restraints Infants and Young Children . . . . . . . . . . . . . 72
Lower Anchors and Tethers forChildren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Older Children . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Child Restraints (cont'd)
Securing . . . . . . . . . . . . . . . . . . . . . . . . . 87, 91, 93
Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Child Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . 20
Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . . . . 332
Cleaning Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 377
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 382
Climate Control Systems . . . . . . . . . . . . . . . . . .185 Air Conditioning . . . . . . . . . . . . . . . . . . . . . . . 185
Dual Automatic . . . . . . . . . . . . . . . . . . . . . . . . 187
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Cluster, Instrument . . . . . . . . . . . . . . . . . .107, 108
Collision Alert Forward (FCA) System . . . . . . . . . . . . . . . . . 257
Collision Damage Repair . . . . . . . . . . . . . . . . . 405
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Connected Services Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 415
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 415
Connections Connected Services . . . . . . . . . . . . . . . . . . . . 415
Control Hill Descent . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231 Control (cont'd)
Traction and Electronic Stability . . . . . . . 230
Control Light Hill Descent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Control of a Vehicle . . . . . . . . . . . . . . . . . . . . . 194
Controls Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 151
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Coolant Engine Temperature Gauge . . . . . . . . . . . . . 113
Engine Temperature Warning Light . . . . 123
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185, 187
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
Courtesy Transportation Program . . . . . . . . 404
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 233 Adaptive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Customer Assistance Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401
Text Telephone (TTY) Users . . . . . . . . . . . . 401
Customer Information Publications Ordering Information . . . . . 406
Customer Satisfaction Procedure . . . . . . . . . 399
Cybersecurity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-16908339) - 2024 - CRC - 12/5/22
Index 421
D
Damage Repair, Collision . . . . . . . . . . . . . . . . . 405
Danger, Warning, and Caution . . . . . . . . . . . . . .2
Dashboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Data CollectionInfotainment System . . . . . . . . . . . . . . . . . . 409
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409
Data Recorders, Event . . . . . . . . . . . . . . . . . . . 409
Daytime Running Lamps (DRL) . . . . . . . . . . . 140
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . . . 194
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Diagnostics Connected Services . . . . . . . . . . . . . . . . . . . . 417
Disabled Vehicle Transporting . . . . . . . . . . . . . . . . . . . . . . . . . . . 373
Distracted Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Distracted Driving . . . . . . . . . . . . . . . . . . . . . . . . 193
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145
Door
Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 20
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Power Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Drive Belt Routing, Engine . . . . . . . . . . . . . . . 398
Drive Systems Four-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . 323 Driver
Assistance Systems, Advanced . . . . . . . . . 246
Information Center (DIC) . . . . . . . . . . . 126, 128
Mode Control . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Mode Control Light . . . . . . . . . . . . . . . . . . . . 123
Teen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Driving
Assistance Systems . . . . . . . . . . . . . . . . . . . . 257
Better Fuel Economy . . . . . . . . . . . . . . . . . . . 193
Characteristics and Towing Tips . . . . . . . . 270
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Hill and Mountain Roads . . . . . . . . . . . . . . 201
If the Vehicle is Stuck . . . . . . . . . . . . . . . . . 203
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 196
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 196
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 204
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Dual
Automatic Climate Control System . . . . 187
E
E85 or FlexFuel . . . . . . . . . . . . . . . . . . . . . . . . . . 266
ElectricParking Brake . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Parking Brake Light . . . . . . . . . . . . . . . . . . . . . 119 Electrical
Equipment, Add-On . . . . . . . . . . . . . . . . . . . . 300
System Overload . . . . . . . . . . . . . . . . . . . . . . 330
Electrical System Engine Compartment Fuse Block . . . . . . . 332
Fuses and Circuit Breakers . . . . . . . . . . . . . 332
Instrument Panel Fuse Block . . . . . . . 335, 337
Electronic Stability Control (ESC) Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . 312
Air Filter Life System . . . . . . . . . . . . . . . . . . . 311
Check Light (Malfunction Indicator) . . . . . 117
Compartment Overview . . . . . . . . . . . . . . . . 307
Coolant Temperature Gauge . . . . . . . . . . . . 113
Coolant Temperature Warning Light . . . 123
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 313
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . 398
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 310
Oil Pressure Gauge . . . . . . . . . . . . . . . . . . . . . 112
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . 124
Overheated ProtectionOperating Mode . . . . . . . . . . . . . . . . . . . . . . 317

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-16908339) - 2024 - CRC - 12/5/22
422 Index
Engine (cont'd)Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
Power Messages . . . . . . . . . . . . . . . . . . . . . . . 134
Running While Parked . . . . . . . . . . . . . . . . . . 217
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Equipment, Towing . . . . . . . . . . . . . . . . . . . . . . 278
Event Data Recorders . . . . . . . . . . . . . . . . . . . . 409
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Extended Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . .32
Extended Parking . . . . . . . . . . . . . . . . . . . . . . . . . 217
Extender, Seat Belt . . . . . . . . . . . . . . . . . . . . . . . 59
Exterior Cargo Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Lamp Controls . . . . . . . . . . . . . . . . . . . . . . . . . 138
Lamps Off Reminder . . . . . . . . . . . . . . . . . . . 140
Lighting Battery Saver . . . . . . . . . . . . . . . . . 147
F
FanEngine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317
Filter
Engine Air Cleaner . . . . . . . . . . . . . . . . . . . . . 312
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Flashers, Hazard Warning . . . . . . . . . . . . . . . . . 141
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360 Floor Console
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385
Fluid Automatic Transmission . . . . . . . . . . . . . . . . 311
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Power Steering . . . . . . . . . . . . . . . . . . . . . . . . . 317
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318
Fog Lamp Light Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Four-Wheel Drive . . . . . . . . . . . . . . . . . . . . 221, 323
Four-Wheel-Drive
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Heated and Ventilated Seats . . . . . . . . . . . . 50
Front Seats
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Economy, Driving for Better . . . . . . . . . . . 193
Filling a Portable Fuel Container . . . . . . . 270
Filling the Tank . . . . . . . . . . . . . . . . . . . 267, 269 Fuel (cont'd)
Foreign Countries . . . . . . . . . . . . . . . . . . . . . . 266
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Low Fuel Warning Light . . . . . . . . . . . . . . . 124
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 266
Recommended . . . . . . . . . . . . . . . . . . . . . . . . . 266
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Full-Size Spare Tire . . . . . . . . . . . . . . . . . . . . . . . 370
Fuses Engine Compartment Fuse Block . . . . . . . 332
Fuses and Circuit Breakers . . . . . . . . . . . . . 332
Instrument Panel Fuse Block . . . . . . . 335, 337
G
Garage Door Opener . . . . . . . . . . . . . . . . . . . . . .134Programming . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Gauges
Engine Coolant Temperature . . . . . . . . . . . . 113
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . . 112
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Transmission Temperature . . . . . . . . . . . . . . 114
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Warning Lights and Indicators . . . . . . . . . 106

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-16908339) - 2024 - CRC - 12/5/22
424 Index
Lamps (cont'd)Exterior Lamps Off Reminder . . . . . . . . . . 140
Exterior Lighting Battery Saver . . . . . . . . 147
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Fog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
High/Low Beam Changer . . . . . . . . . . . . . . 140
License Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
Malfunction Indicator (Check
Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
On Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Lane
Departure Warning Light . . . . . . . . . . . . . . . 121
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . . . 56
LATCH System Replacing Parts after a Crash . . . . . . . . . . . 87
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Illumination Control . . . . . . . . . . . . . . . . . . . 144
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Lights
Airbag Readiness . . . . . . . . . . . . . . . . . . . . . . . 116 Lights (cont'd)
Antilock Brake System (ABS)
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Automatic Emergency Braking (AEB) Disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Brake System Warning . . . . . . . . . . . . . . . . . 119
Charging System . . . . . . . . . . . . . . . . . . . . . . . 117
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Cruise Control Light . . . . . . . . . . . . . . . . . . . . 126
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Driver Mode Control . . . . . . . . . . . . . . . . . . . 123
Electric Parking Brake . . . . . . . . . . . . . . . . . . . 119
Electronic Stability Control (ESC), Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Engine Coolant Temperature
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . 124
Four-Wheel-Drive . . . . . . . . . . . . . . . . . . . . . . 120
Front Fog Lamp . . . . . . . . . . . . . . . . . . . . . . . . 125
Gauges and Indicators . . . . . . . . . . . . . . . . . 106
High-Beam On . . . . . . . . . . . . . . . . . . . . . . . . . 125
Hill Descent Control . . . . . . . . . . . . . . . . . . . . 121
Lane Departure Warning . . . . . . . . . . . . . . . . 121
Low Fuel Warning . . . . . . . . . . . . . . . . . . . . . 124
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . . 115
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Service Electric Parking Brake . . . . . . . . . . . 119 Lights (cont'd)
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . 120
Traction Control System
(TCS)/Electronic Stability Control
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Traction Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Lock Steering Column . . . . . . . . . . . . . . . . . . . . . . . . 30
Locking Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . 233
Locks Automatic Door . . . . . . . . . . . . . . . . . . . . . . . . . 20
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 20
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . 20
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Low Fuel Warning Light . . . . . . . . . . . . . . . . . .124
Lower Anchors and Tethers for Children (LATCH System) . . . . . . . . . . . . . . . . .77
Lumbar Adjustment . . . . . . . . . . . . . . . . . . . . . . . 47 Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 394
Maintenance Schedule . . . . . . . . . . . . . . . . . . . 388