wheel alignment GMC SAVANA 2021 Owner's Manual

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-14583543) -
2021 - crc - 7/10/20
Vehicle Care 177
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . . 178
California Proposition 65 Warning . . . . . 178
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 178
Accessories and Modifications . . . . . . . . . 178
Vehicle Checks
Doing Your Own Service Work . . . . . . . . . 179
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Engine Compartment Overview . . . . . . . . 180
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Engine Oil Life System . . . . . . . . . . . . . . . . 186
Automatic Transmission Fluid (6-Speed Transmission) . . . . . . . . . . . . . . . . . . . . . . . . 186
Automatic Transmission Fluid (8-Speed Transmission) . . . . . . . . . . . . . . . . . . . . . . . . 189
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . 189
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 191
Engine Overheating . . . . . . . . . . . . . . . . . . . 194
Engine Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Power Steering Fluid . . . . . . . . . . . . . . . . . . 196
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Battery - North America . . . . . . . . . . . . . . . 198
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Noise Control System . . . . . . . . . . . . . . . . . 199 Starter Switch Check . . . . . . . . . . . . . . . . . . 200
Automatic Transmission Shift Lock
Control Function Check . . . . . . . . . . . . . . 201
Ignition Transmission Lock Check . . . . . . 201
Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Wiper Blade Replacement . . . . . . . . . . . . . 201
Windshield Replacement . . . . . . . . . . . . . . 202
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 202
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . 202
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . 202
Front Turn Signal, Sidemarker, and Parking Lamps . . . . . . . . . . . . . . . . . . . . . . . 202
Taillamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Center High-Mounted Stoplamp (CHMSL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
License Plate Lamp . . . . . . . . . . . . . . . . . . . . 204
Electrical System
Electrical System Overload . . . . . . . . . . . . 205
Fuses and Circuit Breakers . . . . . . . . . . . . . 205
Engine Compartment Fuse Block . . . . . . 206
Floor Console Fuse Block . . . . . . . . . . . . . . 209
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . . 211
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 212 Tire Sidewall Labeling . . . . . . . . . . . . . . . . . . 212
Tire Designations . . . . . . . . . . . . . . . . . . . . . . 213
Tire Terminology and Definitions . . . . . . 214
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Tire Pressure Monitor System . . . . . . . . . . 217
Tire Pressure Monitor Operation . . . . . . . 217
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . 220
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 220
When It Is Time for New Tires . . . . . . . . 222
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . 222
Different Size Tires and Wheels . . . . . . . 224
Uniform Tire Quality Grading . . . . . . . . . 224
Wheel Alignment and Tire Balance . . . . 225
Wheel Replacement . . . . . . . . . . . . . . . . . . . 225
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 226
Tire Changing . . . . . . . . . . . . . . . . . . . . . . . . . 228
Full-Size Spare Tire . . . . . . . . . . . . . . . . . . . . 235
Jump Starting
Jump Starting - North America . . . . . . . . 236
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . . . . . . 239
Recreational Vehicle Towing . . . . . . . . . . . 239
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-14583543) -
2021 - crc - 7/10/20
220 Vehicle Care
active. The TIRE LEARNING ACTIVE
message on the DIC display screen
goes off.
9. Turn the vehicle off.
10. Set all four tires to the recommended air pressure level as indicated on the Tire
and Loading Information label.
Tire Inspection
We recommend that the tires, including
the spare tire, if the vehicle has one, be
inspected for signs of wear or damage
at least once a month.
Replace the tire if:
.The indicators at three or more
places around the tire can be seen.
.There is cord or fabric showing
through the tire's rubber.
.The tread or sidewall is cracked, cut,
or snagged deep enough to show
cord or fabric.
.The tire has a bump, bulge, or split.
.The tire has a puncture, cut, or other
damage that cannot be repaired well
because of the size or location of the
damage.
Tire Rotation
Tires should be rotated every 12 000 km
(7,500 mi). See Maintenance Schedule
0 249.
Tires are rotated to achieve a more
uniform wear for all tires. The first
rotation is the most important.
Anytime unusual wear is noticed, rotate
the tires as soon as possible, check for
proper tire inflation pressure, and check
for damaged tires or wheels. If the
unusual wear continues after the
rotation, check the wheel alignment.
See When It Is Time for New Tires 0222
and
Wheel Replacement 0225.
Use this rotation pattern when rotating
the tires if the vehicle has single rear
wheels.
Dual Tire Rotation
When the vehicle is new, or whenever a
wheel, wheel bolt, or wheel nut is
replaced or serviced, check the wheel
nut torque after 160, 1 600, and
10 000 km (100, 1,000, and 6,000 mi) of
driving. For proper torque and wheel
nut tightening information, see
“Removing the Flat Tire and Installing
the Spare Tire” underTire Changing
0 228 and “Wheel Nut Torque” under
Capacities and Specifications 0258 and

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-14583543) -
2021 - crc - 7/10/20
Vehicle Care 225
Traction
The traction grades, from highest to
lowest, are AA, A, B, and C. Those
grades represent the tire's ability to
stop on wet pavement as measured
under controlled conditions on specified
government test surfaces of asphalt and
concrete. A tire marked C may have
poor traction performance. Warning:
The traction grade assigned to this tire
is based on straight-ahead braking
traction tests, and does not include
acceleration, cornering, hydroplaning,
or peak traction characteristics.
Temperature
The temperature grades are A (the
highest), B, and C, representing the
tire's resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled conditions
on a specified indoor laboratory test
wheel. Sustained high temperature can
cause the material of the tire to
degenerate and reduce tire life, and
excessive temperature can lead to
sudden tire failure. The grade Ccorresponds to a level of performance
which all passenger car tires must meet
under the Federal Motor Safety
Standard No. 109. Grades B and A
represent higher levels of performance
on the laboratory test wheel than the
minimum required by law. Warning:
The temperature grade for this tire is
established for a tire that is properly
inflated and not overloaded. Excessive
speed, underinflation, or excessive
loading, either separately or in
combination, can cause heat buildup
and possible tire failure.
Wheel Alignment and Tire
Balance
The tires and wheels were aligned and
balanced at the factory to provide the
longest tire life and best overall
performance. Adjustments to wheel
alignment and tire balancing are not
necessary on a regular basis. Consider an
alignment check if there is unusual tire wear
or the vehicle is significantly pulling to one
side or the other. Some slight pull to the
left or right, depending on the crown of the
road and/or other road surface variations such as troughs or ruts, is normal. If the
vehicle is vibrating when driving on a
smooth road, the tires and wheels may
need to be rebalanced. See your dealer for
proper diagnosis.
Wheel Replacement
Replace any wheel that is bent, cracked,
or badly rusted or corroded. If wheel nuts
keep coming loose, the wheel, wheel bolts,
and wheel nuts should be replaced. If the
wheel leaks air, replace it. Some aluminum
wheels can be repaired. See your dealer if
any of these conditions exist.
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.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-14583543) -
2021 - crc - 7/10/20
254 Service and Maintenance
.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 0245 and
Exterior Care 0241.
Wheel Alignment
Wheel alignment is critical for ensuring that
the tires deliver optimal wear and
performance.
.Signs that the alignment may need to be
adjusted include pulling, improper vehicle
handling, or unusual tire wear.
.Your dealer has the required equipment
to ensure proper wheel alignment. Windshield
For safety, appearance, and the best
viewing, keep the windshield clean and
clear.
.Signs of damage include scratches, cracks,
and chips.
.Trained dealer technicians can inspect the
windshield and recommend proper
replacement if needed.
Wiper Blades
Wiper blades need to be cleaned and kept in
good condition to provide a clear view.
.Signs of wear include streaking, skipping
across the windshield, and worn or split
rubber.
.Trained dealer technicians can check the
wiper blades and replace them when
needed.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-14583543) -
2021 - crc - 7/10/20
Index 289
Storage AreasFront . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Storage Compartments . . . . . . . . . . . . . . . . . . . 63
Stuck Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Swing-out Windows . . . . . . . . . . . . . . . . . . . . . . 20
Switches Airbag On-Off . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
System Forward Collision Alert (FCA) . . . . . . . . . . . 154
Infotainment . . . . . . . . . . . . . . . . . . . . . . . 96, 272
Noise Control . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Systems Driver Assistance . . . . . . . . . . . . . . . . . . . . . . 150
T
Taillamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Text Telephone (TTY) Users . . . . . . . . . . . . . . 264
Theft-Deterrent Systems . . . . . . . . . . . . . . . . . . .16Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 All-Season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . 222
Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . 213 Tires (cont'd)
Different Size . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Full-Size Spare . . . . . . . . . . . . . . . . . . . . . . . . . 235
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 226
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Pressure Monitor Operation . . . . . . . . . . . . 217
Pressure Monitor System . . . . . . . . . . . . . . . 217
Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Sidewall Labeling . . . . . . . . . . . . . . . . . . . . . . 212
Terminology and Definitions . . . . . . . . . . . 214
Uniform Tire Quality Grading . . . . . . . . . . 224
Wheel Alignment and Tire Balance . . . . 225
Wheel Replacement . . . . . . . . . . . . . . . . . . . . 225
When It Is Time for New Tires . . . . . . . . . 222
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . . . .145
Tow/Haul Mode Light . . . . . . . . . . . . . . . . . . . . 78
Towing Driving Characteristics . . . . . . . . . . . . . . . . . 160
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
General Information . . . . . . . . . . . . . . . . . . . 160
Recreational Vehicle . . . . . . . . . . . . . . . . . . . 239
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Trailer Sway Control (TSC) . . . . . . . . . . . . . . 175
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239 Traction
Control System (TCS)/StabiliTrak
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .147
Trademarks and License Agreements . . . . . . 117
Trailer Sway Control (TSC) . . . . . . . . . . . . . . . . . . . . . 175
Tow Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Transmission
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Fluid, Automatic . . . . . . . . . . . . . . . . . . 186, 189
Transportation Program, Courtesy . . . . . . . 267
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Turn and Lane-Change Signals . . . . . . . . . . . . 92U
Uniform Tire Quality Grading . . . . . . . . . . . . 224
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . .2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Canadian Owners . . . . . . . . . . . . . . . . . . . . . . . . . 1
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Identification Number (VIN) . . . . . . . . . . . . 258
Load Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-14583543) -
2021 - crc - 7/10/20
290 Index
Vehicle (cont'd)Personalization . . . . . . . . . . . . . . . . . . . . . . . . . 86
Remote Start . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Speed Messages . . . . . . . . . . . . . . . . . . . . . . . . 86
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Vehicle Ahead Indicator . . . . . . . . . . . . . . . . . . . 79
Vehicle Care
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Vehicle Data Recording and Privacy . . . . . . . 271
Ventilation, Air . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Voltmeter Gauge . . . . . . . . . . . . . . . . . . . . . . . . . .73
W
Warning Brake System Light . . . . . . . . . . . . . . . . . . . . . 77
Caution and Danger . . . . . . . . . . . . . . . . . . . . . 2
Lane Departure (LDW) . . . . . . . . . . . . . . . . . . 157
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Warnings
Hazard Flashers . . . . . . . . . . . . . . . . . . . . . . . . . 92
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Wheels Alignment and Tire Balance . . . . . . . . . . . . 225
Different Size . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 225 When It Is Time for New Tires . . . . . . . . . . . 222
Where to Put the Restraint . . . . . . . . . . . . . . . . 51
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Enhanced Technology Glass . . . . . . . . . . . . . . 21
Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Swing-out Windows . . . . . . . . . . . . . . . . . . . . 20
Windshield Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Wiper/Washer . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Wiper Blade Replacement . . . . . . . . . . . . . . . . 201