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Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CRC - 8/19/19
Vehicle Care 325
Vehicle Care
General Information
General Information . . . . . . . . . . 326
California Proposition
65 Warning . . . . . . . . . . . . . . . . . 327
California Perchlorate
Materials Requirements . . . . . 327
Accessories and
Modifications . . . . . . . . . . . . . . . . 327
Vehicle Checks
Doing Your Own
Service Work . . . . . . . . . . . . . . . 328
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 328
Engine Compartment
Overview . . . . . . . . . . . . . . . . . . . . 330
Engine Oil . . . . . . . . . . . . . . . . . . . . 337
Engine Oil Life System . . . . . . . 339
Automatic Transmission
Fluid . . . . . . . . . . . . . . . . . . . . . . . . 341
Engine Air Filter Life
System . . . . . . . . . . . . . . . . . . . . . . 341
Engine Air Cleaner/Filter . . . . . . 342
Cooling System . . . . . . . . . . . . . . 344
Engine Overheating . . . . . . . . . . 349
Overheated Engine Protection
Operating Mode . . . . . . . . . . . . . 350
Engine Fan . . . . . . . . . . . . . . . . . . . 351
Power Steering Fluid . . . . . . . . . 352
Washer Fluid . . . . . . . . . . . . . . . . . 352
Brakes . . . . . . . . . . . . . . . . . . . . . . . 353
Brake Pad Life System . . . . . . . 354
Brake Fluid . . . . . . . . . . . . . . . . . . . 355
Battery - North America . . . . . . 356
Four-Wheel Drive . . . . . . . . . . . . . 359
Front Axle . . . . . . . . . . . . . . . . . . . . 359
Rear Axle . . . . . . . . . . . . . . . . . . . . 360
Noise Control System . . . . . . . . 360
Starter Switch Check . . . . . . . . . 361
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 361
Ignition Transmission Lock
Check . . . . . . . . . . . . . . . . . . . . . . . 361
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . 362
Wiper Blade Replacement . . . . 362
Glass Replacement . . . . . . . . . . 363
Windshield Replacement . . . . . 363
Gas Strut(s) . . . . . . . . . . . . . . . . . . 363
Headlamp Aiming
Front Headlamp Aiming . . . . . . 364
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 365
Halogen Bulbs . . . . . . . . . . . . . . . . 365
LED Lighting . . . . . . . . . . . . . . . . . 365
Headlamps, Front Turn Signal,
Sidemarker, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . 365
Taillamps, Turn Signal,
Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . . . 366
Center High-Mounted
Stoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . . . 367
License Plate Lamp . . . . . . . . . . 368
Electrical System
Electrical System Overload . . . 368
Fuses and Circuit Breakers . . . 369
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 369
Instrument Panel Fuse
Block (Left) . . . . . . . . . . . . . . . . . 373
Instrument Panel Fuse Block
(Right) . . . . . . . . . . . . . . . . . . . . . . 374
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 377
All-Season Tires . . . . . . . . . . . . . . 378
Winter Tires . . . . . . . . . . . . . . . . . . 378
Low-Profile Tires . . . . . . . . . . . . . 379
All-Terrain Tires . . . . . . . . . . . . . . . 379
Tire Sidewall Labeling . . . . . . . . 379
Tire Designations . . . . . . . . . . . . . 382
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . 383
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