headlamp CHEVROLET SILVERADO 2500 2023 Owner's Manual

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
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.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
330 Vehicle Care
Caution
Do not apply tape or hang any objects
from gas struts. Also do not push down
or pull on gas struts. This may cause
damage to the vehicle.
See Maintenance Schedule 0392.
Hood
Trunk
Liftgate
Headlamp Aiming
Front 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.
Bulb Replacement
For the proper type of replacement bulbs,
or any bulb changing procedure not listed in
this section, contact your dealer.
Caution
Do not replace incandescent bulbs with
aftermarket LED replacement bulbs. This
can cause damage to the vehicle electrical
system.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
Vehicle Care 331
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.
LED Lighting
This vehicle has several LED lamps. For
replacement of any LED lighting assembly,
contact your dealer.
Headlamps, Front Turn Signal,
Sidemarker, and Parking Lamps
Base Level Headlamp Assembly
1. Sidemarker lamp
2. Low-Beam Headlamp
3. High-Beam Headlamp
4. Turn Signal/Park Lamps
Midlevel Headlamp Assembly
1. Turn Signal Lamps
Headlamp Replacement
Base Level1. Open the hood.
2. Remove the headlamp bulb cover.
3. Turn the bulb socket counterclockwise to remove it from the headlamp assembly.
4. Unplug the electrical connector from the bulb by releasing the clip on the
connector.
5. Replace the bulb and reverse Steps 1–4 to reinstall.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
332 Vehicle Care
Midlevel and Uplevel
See your dealer for headlamp replacement.
Uplevel
See your dealer for turn signal replacement.
Turn Signal Lamp Replacement
1. Open the hood.
2. Turn the bulb socket counterclockwise toremove it from the headlamp assembly
and pull it straight out.
3. Remove the bulb by pulling it straight out of the bulb socket.
4. Replace the bulb and reverse Steps 1–3 to reinstall.
Taillamps, Turn Signal, Stoplamps,
and Back-Up Lamps
Base Level Taillamp Assembly
1. Stoplamp/Taillamp/Turn Signal Lamp
2. Back-Up Lamp
3. Side Marker Lamp
Uplevel Taillamp Assembly
1500 shown 2500/3500 similar
1. Back-Up Lamp
It is recommended to replace the grommets
when replacing a bulb. See your dealer.
To replace one of these bulbs:
1. Open the tailgate.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
Vehicle Care 335
Replacing a Blown Fuse
1. Turn off the vehicle.
2. Locate the fuse puller on the instrumentpanel end cap. See the Instrument Panel
Fuse Block (Right) 0341 or
Instrument Panel Fuse Block (Left) 0339.
3. Use the fuse puller to remove the fuse
from the top or side, as shown above. 4. If the fuse must be replaced
immediately, spare fuses are also
provided on the instrument panel end
cap or borrow a replacement fuse with
the same amperage from the fuse block.
Choose a vehicle feature that is not
needed to safely operate the vehicle.
Repeat Steps 2-3.
5. Insert the replacement fuse into the empty slot of the blown fuse.
At the next opportunity, see your dealer to
replace the blown fuse.
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

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
Vehicle Care 337
FusesUsage
1 High-beam left
2 High-beam right Fuses
Usage
3 Headlamp left
4 Headlamp right Fuses
Usage
6 –
7 –
8 Fog lamp
9 –
10 –
11 Police upfitter
12 –
13 Washer front
14 Washer rear 15 –
16 –
17 IECL 1
19 DC/AC inverter
20 IECR 2 (LD) / EBCM2 (HD)
21 –
22 IECL 2
24 EBCM 1 25 –
26 –

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
Vehicle Care 339
FusesUsage
82 Trailer Interface Module 2
83 FTZM
84 Trailer brake 85 ENG
86 Engine control module 87 Injector B even
88 O2 B sensor
89 O2 A sensor
90 Injector A odd 91 Engine control module throttle control
92 Cool fan clutch/ Aeroshutter Relays
Usage
5 Headlamp
18 DC/AC inverter
23 Rear window defogger
35 Parking lamp
36 Run/Crank
43 –
59 A/C clutch
64 Starter Motor (LD & HD DSL)
70 Starter Pinion (LD) / Starter Motor (HD Gas)
77 PowertrainInstrument Panel Fuse Block (Left)
The left instrument panel fuse block access
door is on the driver side edge of the
instrument panel.
The vehicle may not be equipped with all of
the fuses, relays, and features shown.
Pull off the cover to access the fuse block.
A fuse puller is available on the left
instrument panel end cap.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
362 Vehicle Care
Your dealer will know the kind of wheel that
is needed.
Each new wheel should have the same
load-carrying capacity, diameter, width,
offset, and be mounted the same way as
the one it replaces.
Replace wheels, wheel bolts, wheel nuts,
or Tire Pressure Monitor System (TPMS)
sensors with new GM original equipment
parts.
{Warning
Using the wrong replacement wheels,
wheel bolts, or wheel nuts can be
dangerous. It could affect the braking and
handling of the vehicle. Tires can lose air,
and cause loss of control, causing a crash.
Always use the correct wheel, wheel
bolts, and wheel nuts for replacement.
Caution
The wrong wheel can also cause
problems with bearing life, brake cooling,
speedometer or odometer calibration,
headlamp aim, bumper height, vehicle
ground clearance, and tire or tire chain
clearance to the body and chassis.
Used Replacement Wheels
{Warning
Replacing a wheel with a used one is
dangerous. How it has been used or how
far it has been driven may be unknown.
It could fail suddenly and cause a crash.
When replacing wheels, use a new GM
original equipment wheel.
Tire Chains
{Warning
If the vehicle has LT275/65R20 size tires,
do not use tire chains. There is not
enough clearance. Tire chains used on a
vehicle without the proper amount of
clearance can cause damage to the
brakes, suspension, or other vehicle parts.
The area damaged by the tire chains
could cause loss of control and a crash.
Use another type of traction device only
if its manufacturer recommends it for the
vehicle's tire size combination and road
conditions. Follow that manufacturer's
instructions. To avoid vehicle damage,
drive slow and readjust or remove the(Continued)
Warning (Continued)
traction device if it is contacting the
vehicle. Do not spin the wheels.
If traction devices are used, install them
on the rear tires.
Caution
Use tire chains only where legal and only
when necessary. Use chains that are the
proper size for the tires. If the vehicle has
LT235/80R17 size tires, install the chains
on the tires of the rear axle only. If the
vehicle has LT245/75R17, LT265/70R17,
or LT275/70R18 size tires, install the
chains on the tires of the front and rear
axle. Tighten them as tightly as possible
with the ends securely fastened. Drive
slowly and follow the chain
manufacturer's instructions. If the chains
contact the vehicle, stop and retighten
them. If the contact continues, slow
down until it stops. Driving too fast or
spinning the wheels with chains on will
damage the vehicle.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
Service and Maintenance 399
.Trained dealer technicians have access to
tools and equipment to inspect the brakes
and recommend quality parts engineered
for the vehicle.
Fluids
Proper fluid levels and approved fluids
protect the vehicle’s systems and
components. See Recommended Fluids and
Lubricants 0401 for GM approved fluids.
.Engine oil and windshield washer fluid
levels should be checked at every fuel fill.
.Instrument cluster lights may come on to
indicate that fluids may be low and need
to be filled.
Hoses
Hoses transport fluids and should be
regularly inspected to ensure that there are
no cracks or leaks. With a multi-point
inspection, your dealer can inspect the hoses
and advise if replacement is needed. Lamps
Properly working headlamps, taillamps, and
brake lamps are important to see and be
seen on the road.
.Signs that the headlamps need attention
include dimming, failure to light, cracking,
or damage. The brake lamps need to be
checked periodically to ensure that they
light when braking.
.With a multi-point inspection, your dealer
can check the lamps and note any
concerns.
Shocks and Struts
Shocks and struts help aid in control for a
smoother ride.
.Signs of wear may include steering wheel
vibration, bounce/sway while braking,
longer stopping distance, or uneven
tire wear.
.As part of the multi-point inspection,
trained dealer technicians can visually
inspect the shocks and struts for signs of
leaking, blown seals, or damage, and can
advise when service is needed. Tires
Tires need to be properly inflated, rotated,
and balanced. Maintaining the tires can save
money and fuel, and can reduce the risk of
tire failure.
.Signs that the tires need to be replaced
include three or more visible treadwear
indicators; cord or fabric showing through
the rubber; cracks or cuts in the tread or
sidewall; or a bulge or split in the tire.
.Trained dealer technicians can inspect and
recommend the right tires. Your dealer
can also provide tire/wheel balancing
services to ensure smooth vehicle
operation at all speeds. Your dealer sells
and services name brand tires.
Vehicle Care
To help keep the vehicle looking like new,
vehicle care products are available from your
dealer. For information on how to clean and
protect the vehicle’s interior and exterior,
see Interior Care 0386 and
Exterior Care 0381.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
Index 429
AudioBluetooth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Automatic Dimming Mirrors . . . . . . . . . . . . . . . . . . . . . . . 37
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Emergency Braking (AEB) . . . . . . . . . . . . . . 265
Headlamp System . . . . . . . . . . . . . . . . . . . . . . 141
Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Transmission Fluid . . . . . . . . . . . . . . . . . . . . . 314
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . 238
Shift Lock Control Function Check . . . . . . 328
Auxiliary Roof Mounted Lamp . . . . . . . . . . . . . . . . . . . 144
Auxiliary Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Avoiding Untrusted Media Devices . . . . . . . .158
Axle, Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Axle, Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
B
Battery Exterior Lighting Battery Saver . . . . . . . . 147
Load Management . . . . . . . . . . . . . . . . . . . . . 147
Power Protection . . . . . . . . . . . . . . . . . . . . . . 147
Battery - North America . . . . . . . . . . . . 324, 374
Blade Replacement, Wiper . . . . . . . . . . . . . . . 328
Blind Spot Mirrors . . . . . . . . . . . . . . . . . . . . . . . . .37 Bluetooth
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 178, 179
Bluetooth Audio . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Brake Parking, Electric . . . . . . . . . . . . . . . . . . . . . . . . 245
System Warning Light . . . . . . . . . . . . . . . . . . 117
Brake Pad Life System . . . . . . . . . . . . . . . . . . . 322
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
Antilock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Pad Life System . . . . . . . . . . . . . . . . . . . . . . . 322
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 Automatic Emergency (AEB) . . . . . . . . . . . 265
Break-In, New Vehicle . . . . . . . . . . . . . . . . . . . . 226
Bulb Replacement Center High-Mounted Stoplamp(CHMSL) and Cargo Lamp . . . . . . . . . . . . 333
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . 331
Headlamp Aiming . . . . . . . . . . . . . . . . . . . . . . 330
Headlamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
Headlamps, Front Turn Signal, Sidemarker, and Parking Lamps . . . . . . 331
License Plate Lamps . . . . . . . . . . . . . . . . . . . 334
Taillamps, Turn Signal, Stoplamps, and Back-up Lamps . . . . . . . . . . . . . . . . . . 332
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . . . 359
C
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 307
California Proposition 65 Warning . . . . . . . . . . . . . . . . . . . . . . . 324, 374, Back Cover
Camera Rear Vision (RVC) . . . . . . . . . . . . . . . . . . . . . . 254
Truck Bed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Canadian Vehicle Owners . . . . . . . . . . . . . . . . . . . 1
Capacities and Specifications . . . . . . . . . . . . . 406
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . . . . . . . . . . 235
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . 218
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Caution, Danger, and Warning . . . . . . . . . . . . . .2
Center Console Storage . . . . . . . . . . . . . . . . . . . 97
Center High-Mounted Stoplamp (CHMSL) and Cargo Lamp . . . . . . . . . . . . . . 333
Center Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Chains, Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362
Charging
Wireless . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Charging System Light . . . . . . . . . . . . . . . . . . . . 116