GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-10664916) - 2018 - crc - 9/15/17
Vehicle Care 259
Vehicle Care
General Information
General Information . . . . . . . . . . 260
California Proposition65 Warning . . . . . . . . . . . . . . . . . 260
California Perchlorate Materials Requirements . . . . . 261
Accessories and Modifications . . . . . . . . . . . . . . . . 261
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 261
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 262
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 264
Engine Oil . . . . . . . . . . . . . . . . . . . . 269
Engine Oil Life System . . . . . . . 273
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 274
Engine Air Cleaner/Filter . . . . . . 274
Cooling System . . . . . . . . . . . . . . 276
Engine Overheating . . . . . . . . . . 280
Washer Fluid . . . . . . . . . . . . . . . . . 282
Brakes . . . . . . . . . . . . . . . . . . . . . . . 282
Brake Fluid . . . . . . . . . . . . . . . . . . . 283
Battery - North America . . . . . . 284
All-Wheel Drive . . . . . . . . . . . . . . . 285 Starter Switch Check . . . . . . . . . 285
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . 286
Wiper Blade Replacement . . . . 286
Windshield Replacement . . . . . 287
Gas Strut(s) . . . . . . . . . . . . . . . . . . 287
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 289
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 289
Halogen Bulbs . . . . . . . . . . . . . . . . 289
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . 289
LED Lighting . . . . . . . . . . . . . . . . . 289
Front Turn Signal Lamps . . . . . 289
Taillamps . . . . . . . . . . . . . . . . . . . . . 290
License Plate Lamp . . . . . . . . . . 291
Electrical System
Electrical System Overload . . . 292
Fuses and Circuit Breakers . . . 292
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 293
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 296
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 298
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 300 All-Season Tires . . . . . . . . . . . . . . 301
Winter Tires . . . . . . . . . . . . . . . . . . 301
Summer Tires . . . . . . . . . . . . . . . . 302
Tire Sidewall Labeling . . . . . . . . 302
Tire Designations . . . . . . . . . . . . . 304
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . 305
Tire Pressure . . . . . . . . . . . . . . . . . 307
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 309
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 310
Tire Inspection . . . . . . . . . . . . . . . . 313
Tire Rotation . . . . . . . . . . . . . . . . . 314
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 315
Buying New Tires . . . . . . . . . . . . . 315
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 317
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 317
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 319
Wheel Replacement . . . . . . . . . . 319
Tire Chains . . . . . . . . . . . . . . . . . . . 320
If a Tire Goes Flat . . . . . . . . . . . . 320
Tire Sealant and Compressor Kit . . . . . . . . . . . . . 322
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . 328
GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-10664916) - 2018 - crc - 9/15/17
292 Vehicle Care
Electrical System
Electrical System
Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
When the electrical load current is
too heavy, the circuit breaker opens
and closes, protecting the circuit
until the current load returns to
normal or the problem is fixed. This
greatly reduces the chance of circuit
overload and fire caused by
electrical problems.
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, the
same amperage fuse can be
borrowed. Choose some feature of
the vehicle that is not needed to use
and replace it as soon as possible.
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.
Fuses and Circuit
Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses and circuit
breakers. This greatly reduces the
chance of damage caused by
electrical problems.
{Danger
Fuses and circuit breakers are
marked with their ampere rating.
Do not exceed the
specified amperage rating when
replacing fuses and circuit
breakers. Use of an oversized
fuse or circuit breaker can result
in a vehicle fire. You and others
could be seriously injured or
killed.
To check a fuse, look at the
silver-colored band inside the fuse.
If the band is broken or melted,
replace the fuse. Be sure to replace
a bad fuse with a new one of the
identical size and rating.
