2018 GMC SAVANA winter tires

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
Driving and Operating 165
.Keep windshield wiping
equipment in good shape.
. Keep the windshield washer fluid
reservoir filled.
. Have good tires with proper
tread depth. See Tires0253.
. Turn off cruise control.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on flat or rolling terrain. Tips include:
.Keep the vehicle serviced and in
good shape.
. Check all fluid levels and brakes,
tires, cooling system, and
transmission.
. Shift to a lower gear when going
down steep or long hills.
{Warning
Using the brakes to slow the
vehicle on a long downhill slope
can cause brake overheating, can
(Continued)
Warning (Continued)
reduce brake performance, and
could result in a loss of braking.
Shift the transmission to a lower
gear to let the engine assist the
brakes on a steep downhill slope.
{Warning
Coasting downhill in N (Neutral)
or with the ignition off is
dangerous. This can cause
overheating of the brakes and
loss of steering assist. Always
have the engine running and the
vehicle in gear.
. Drive at speeds that keep the
vehicle in its own lane. Do not
swing wide or cross the
center line.
. Be alert on top of hills;
something could be in your lane
(e.g., stalled car, accident). .
Pay attention to special road
signs (e.g., falling rocks area,
winding roads, long grades,
passing or no-passing zones)
and take appropriate action.
Winter Driving
Driving on Snow or Ice
Snow or ice between the tires and
the road creates less traction or
grip, so drive carefully. Wet ice can
occur at about 0 °C (32 °F) when
freezing rain begins to fall. Avoid
driving on wet ice or in freezing rain
until roads can be treated.
For slippery road driving:
.Accelerate gently. Accelerating
too quickly causes the wheels to
spin and makes the surface
under the tires slick.
. Turn on Traction Control. See
Traction Control/Electronic
Stability Control 0186.
. Antilock Brake System (ABS)
improves vehicle stability during
hard stops, but the brakes
should be applied sooner than

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
Vehicle Care 211
Vehicle Care
General Information
General Information . . . . . . . . . . 212
California Proposition65 Warning . . . . . . . . . . . . . . . . . 212
California Perchlorate Materials Requirements . . . . . 213
Accessories and Modifications . . . . . . . . . . . . . . . . 213
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 213
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 214
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 215
Engine Oil . . . . . . . . . . . . . . . . . . . . 218
Engine Oil Life System . . . . . . . 220
Automatic Transmission Fluid (6-Speed Transmission) . . . . . 221
Automatic Transmission Fluid (8-Speed Transmission) . . . . . 224
Engine Air Cleaner/Filter . . . . . . 225
Cooling System . . . . . . . . . . . . . . 226
Engine Overheating . . . . . . . . . . 231
Engine Fan . . . . . . . . . . . . . . . . . . . 232
Power Steering Fluid . . . . . . . . . 233
Washer Fluid . . . . . . . . . . . . . . . . . 233 Brakes . . . . . . . . . . . . . . . . . . . . . . . 234
Brake Fluid . . . . . . . . . . . . . . . . . . . 235
Battery - North America . . . . . . 236
Rear Axle . . . . . . . . . . . . . . . . . . . . 237
Noise Control System . . . . . . . . 238
Starter Switch Check . . . . . . . . . 239
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 239
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . 240
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 240
Wiper Blade Replacement . . . . 240
Windshield Replacement . . . . . 241
Gas Strut(s) . . . . . . . . . . . . . . . . . . 241
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 242
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 243
Halogen Bulbs . . . . . . . . . . . . . . . . 243
Front Turn Signal, Sidemarker, and Parking Lamps . . . . . . . . . 243
Taillamps . . . . . . . . . . . . . . . . . . . . . 243
Center High-Mounted Stoplamp (CHMSL) . . . . . . . . . 245
License Plate Lamp . . . . . . . . . . 245
Electrical System
Electrical System Overload . . . 246
Fuses and Circuit Breakers . . . 246
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 247
Floor Console Fuse Block . . . . 251
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 253
All-Season Tires . . . . . . . . . . . . . . 253
Winter Tires . . . . . . . . . . . . . . . . . . 254
All-Terrain Tires . . . . . . . . . . . . . . . 254
Tire Sidewall Labeling . . . . . . . . 254
Tire Designations . . . . . . . . . . . . . 257
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . 258
Tire Pressure . . . . . . . . . . . . . . . . . 261
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 262
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 263
Tire Inspection . . . . . . . . . . . . . . . . 266
Tire Rotation . . . . . . . . . . . . . . . . . 266
Dual Tire Rotation . . . . . . . . . . . . 268
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 268
Buying New Tires . . . . . . . . . . . . . 269
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 271

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
254 Vehicle Care
performance on most road surfaces
and weather conditions. Original
equipment tires designed to GM's
specific tire performance criteria
have a TPC specification code
molded onto the sidewall. Original
equipment all-season tires can be
identified by the last two characters
of this TPC code, which will
be“MS.”
Consider installing winter tires on
the vehicle if frequent driving on
snow or ice-covered roads is
expected. All-season tires provide
adequate performance for most
winter driving conditions, but they
may not offer the same level of
traction or performance as winter
tires on snow or ice-covered roads.
See Winter Tires 0254.
Winter Tires
This vehicle was not originally
equipped with winter tires. Winter
tires are designed for increased
traction on snow and ice-covered
roads. Consider installing winter
tires on the vehicle if frequent
driving on ice or snow covered roads is expected. See your dealer
for details regarding winter tire
availability and proper tire selection.
Also, see
Buying New Tires 0269.
With winter tires, there may be
decreased dry road traction,
increased road noise, and shorter
tread life. After changing to winter
tires, be alert for changes in vehicle
handling and braking.
If using winter tires:
. Use tires of the same brand and
tread type on all four wheel
positions.
. Use only radial ply tires of the
same size, load range, and
speed rating as the original
equipment tires.
Winter tires with the same speed
rating as the original equipment tires
may not be available for H, V, W, Y,
and ZR speed rated tires. If winter
tires with a lower speed rating are
chosen, never exceed the tire's
maximum speed capability.
All-Terrain Tires
This vehicle may have All-Terrain
Tires. These tires provide good
performance on most road surfaces,
weather conditions, and for off-road
driving.
The tread pattern on these tires may
wear more quickly than other tires.
Consider rotating the tires more
frequently than at 12 000 km
(7,500 mi) intervals if irregular wear
is noted when the tires are
inspected. See Tire Inspection
0 266.
Tire Sidewall Labeling
Useful information about a tire is
molded into the sidewall. The
examples show a typical
passenger vehicle and light
truck tire sidewall.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
270 Vehicle Care
maintenance have been done,
all four tires (six for dual rear
wheels) should wear out at
about the same time. SeeTire
Rotation 0266 for information
on proper tire rotation. However,
if it is necessary to replace only
one axle set of worn tires, place
the new tires on the rear axle
(two for single rear wheels, four
for dual rear wheels).
{Warning
Tires could explode during
improper service. Attempting
to mount or dismount a tire
could cause injury or death.
Only your dealer or authorized
tire service center should
mount or dismount the tires.
{Warning
Mixing tires of different sizes,
brands, or types may cause
loss of control of the vehicle,
resulting in a crash or other
vehicle damage. Use the
correct size, brand, and type
of tires on all wheels.
This vehicle may have a
different size spare than the
road tires originally installed
on the vehicle. When new, the
vehicle included a spare tire
and wheel assembly with a
similar overall diameter as the
road tires and wheels, so it is
all right to drive on it. The
spare tire was developed for
use on this vehicle and will not
affect vehicle handling.{Warning
Using bias-ply tires on the
vehicle may cause the wheel
rim flanges to develop cracks
after many miles of driving.
A tire and/or wheel could fail
suddenly and cause a crash.
Use only radial-ply tires with
the wheels on the vehicle.
Winter tires with the same speed
rating as the original equipment
tires may not be available for H,
V, W, Y and ZR speed rated
tires. Never exceed the winter
tires’ maximum speed capability
when using winter tires with a
lower speed rating.
If the vehicle tires must be
replaced with a tire that does not
have a TPC Spec number, make
sure they are the same size,
load range, speed rating, and
construction (radial) as the
original tires.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
Vehicle Care 271
Vehicles that have a tire
pressure monitoring system
could give an inaccurate
low-pressure warning if non-TPC
Spec rated tires are installed.
SeeTire Pressure Monitor
System 0262.
The Tire and Loading
Information label indicates the
original equipment tires on the
vehicle. See Vehicle Load Limits
0 167 for the label location and
more information about the Tire
and Loading Information label.
Different Size Tires and
Wheels
If wheels or tires are installed that
are a different size than the original
equipment wheels and tires, vehicle
performance, including its braking,
ride and handling characteristics,
stability, and resistance to rollover
may be affected. If the vehicle has
electronic systems such as antilock
brakes, rollover airbags, traction
control, electronic stability control, or All-Wheel Drive, the performance
of these systems can also be
affected.
{Warning
If different sized wheels are used,
there may not be an acceptable
level of performance and safety if
tires not recommended for those
wheels are selected. This
increases the chance of a crash
and serious injury. Only use GM
specific wheel and tire systems
developed for the vehicle, and
have them properly installed by a
GM certified technician.
See Buying New Tires 0269 and
Accessories and Modifications
0 213.
Uniform Tire Quality
Grading
The following information relates
to the system developed by the
United States National Highway
Traffic Safety Administration (NHTSA), which grades tires by
treadwear, traction, and
temperature performance. This
applies only to vehicles sold in
the United States. The grades
are molded on the sidewalls of
most passenger car tires. The
Uniform Tire Quality Grading
(UTQG) system does not apply
to deep tread, winter tires,
compact spare tires, tires with
nominal rim diameters of
10 to 12 inches (25 to 30 cm),
or to some limited-production
tires.
While the tires available on
General Motors passenger cars
and light trucks may vary with
respect to these grades, they
must also conform to federal
safety requirements and
additional General Motors Tire
Performance Criteria (TPC)
standards.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
Customer Information 321
.Lock-Out Service: Service to
unlock the vehicle if you are
locked out. A remote unlock may
be available if you have OnStar.
For security reasons, the driver
must present identification
before this service is given.
. Emergency Tow from a Public
Road or Highway: Tow to the
nearest GMC dealer for warranty
service, or if the vehicle was in a
crash and cannot be driven.
Assistance is not given when the
vehicle is stuck in the sand,
mud, or snow.
. Flat Tire Change: Service to
change a flat tire with the spare
tire. The spare tire, if equipped,
must be in good condition and
properly inflated. It is the owner's
responsibility for the repair or
replacement of the tire if it is not
covered by the warranty.
. Battery Jump Start: Service to
jump start a dead battery. .
Trip Interruption Benefits and
Assistance: If your trip is
interrupted due to a warranty
event, incidental expenses may
be reimbursed within the
Powertrain warranty period.
Items considered are reasonable
and customary hotel, meals,
rental car, or a vehicle being
delivered back to the customer,
up to 500 miles.
Services Not Included in
Roadside Assistance
. Impound towing caused by
violation of any laws
. Legal fines
. Mounting, dismounting,
or changing of snow tires,
chains, or other traction devices
Service is not provided if a vehicle
is in an area that is not accessible
to the service vehicle or is not a
regularly traveled or maintained
public road, which includes ice and
winter roads. Off-road use is not
covered.
Services Specific to
Canadian-Purchased Vehicles
. Fuel Delivery: Reimbursement
is up to 7 L. Diesel fuel delivery
may be restricted. Propane and
other fuels are not provided
through this service.
. Lock-Out Service: Vehicle
registration is required.
. Trip Interruption Benefits and
Assistance: Must be over
150 km from where your trip was
started to qualify.
Pre-authorization, original
detailed receipts, and a copy of
the repair orders are required.
Once authorization has been
received, the Roadside
Assistance advisor will help to
make arrangements and explain
how to receive payment.
. Alternative Service: If
assistance cannot be provided
right away, the Roadside
Assistance advisor may give
permission to get local
emergency road service. You will
receive payment, up to $100,

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
Index 343
Automatic (cont'd)Headlamp System . . . . . . . . . . . . 122
Transmission . . . . . . . . . . . . . . . . . 180
Transmission Fluid . . . . . . 221, 224
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 183
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 239
Auxiliary
Devices . . . . . . . . . . . . . . . . . . . . . . . 141
Avoiding Untrusted Media Devices . . . . . . . . . . . . . . . . . . . . . . . 136
Axle, Rear . . . . . . . . . . . . . . . . . . . . . . 237
B
Battery Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 125
Load Management . . . . . . . . . . . . 125
Power Protection . . . . . . . . . . . . . 125
Battery - North America . . . . 236, 284
Blade Replacement, Wiper . . . . . 240
Bluetooth Overview . . . . . . . . . . . . . . . . . . . . . 146
Brake System Warning Light . . . . . . . . 105 Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Antilock . . . . . . . . . . . . . . . . . . . . . . . 184
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 186
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Parking . . . . . . . . . . . . . . . . . . . . . . . 185
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 162
Break-In, New Vehicle . . . . . . . . . . 171
Bulb Replacement Center High-MountedStoplamp (CHMSL) . . . . . . . . . 245
Front Turn Signal,
Sidemarker, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . 243
Halogen Bulbs . . . . . . . . . . . . . . . . 243
Headlamp Aiming . . . . . . . . . . . . . 242
Headlamps . . . . . . . . . . . . . . . . . . . 243
License Plate Lamps . . . . . . . . . 245
Taillamps . . . . . . . . . . . . . . . . . . . . . 243
Buying New Tires . . . . . . . . . . . . . . . 269
C
Calibration . . . . . . . . . . . . . . . . . . . . . . . 92
California Fuel Requirements . . . . . . . . . . . 196
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 213 California
Proposition
65 Warning . . . . . . . . . .212, 236, 284,
Back Cover
Camera Rear Vision (RVC) . . . . . . . . . . . . 191
Canadian Vehicle Owners . . . . . . . . 2
Capacities and
Specifications . . . . . . . . . . . . . . . . . 313
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 179
Winter Driving . . . . . . . . . . . . . . . . 165
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . . . 87
Cargo Door Relocking . . . . . . . . . . . 30
Caution, Danger, and Warning . . . . 3
CD Player . . . . . . . . . . . . . . . . . . . . . . 136
Center High-Mounted Stoplamp (CHMSL) . . . . . . . . . . . 245
Chains, Tire . . . . . . . . . . . . . . . . . . . . 274
Charging System Light . . . . . . . . . 103
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 103
Ignition Transmission Lock . . . 240
Child Restraints Infants and Young Children . . . . . 69

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
Index 351
Tires (cont'd)Pressure Monitor System . . . . . 262
Rotation . . . . . . . . . . . . . . . . . . . . . . 266
Sidewall Labeling . . . . . . . . . . . . . 254
Terminology and Definitions . . 258
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 271
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 273
Wheel Replacement . . . . . . . . . . 273
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 268
Winter . . . . . . . . . . . . . . . . . . . . . . . . 254
Tow/Haul Mode . . . . . . . . . . . . . . . . . 184
Tow/Haul Mode Light . . . . . . . . . . . 106
Towing
Driving Characteristics . . . . . . . . 200
Equipment . . . . . . . . . . . . . . . . . . . . 207
General Information . . . . . . . . . . 200
Recreational Vehicle . . . . . . . . . . 288
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 202
Trailer Sway Control (TSC) . . . 209
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 287
Traction Control System (TCS)/StabiliTrak Light . . . . . . . . . . . . . 107
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . 186 Trailer
Sway Control (TSC) . . . . . . . . . . 209
Tow Mirrors . . . . . . . . . . . . . . . . . . . . . 36
Towing . . . . . . . . . . . . . . . . . . . . . . . . 202
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . 180
Fluid, Automatic . . . . . . . . . 221, 224
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . . 322
Trip Odometer . . . . . . . . . . . . . . . . . . . 98
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . 123
U
Uniform Tire Quality Grading . . . 271
Using This Manual . . . . . . . . . . . . . . . . 2
V
VehicleCanadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 162
Identification Number (VIN) . . . 312
Load Limits . . . . . . . . . . . . . . . . . . . 167
Messages . . . . . . . . . . . . . . . . . . . . .114
Personalization . . . . . . . . . . . . . . . .115
Remote Start . . . . . . . . . . . . . . . . . . . 28
Security . . . . . . . . . . . . . . . . . . . . . . . . 34
Speed Messages . . . . . . . . . . . . . .114
Towing . . . . . . . . . . . . . . . . . . . . . . . . 287 Vehicle Care
Tire Pressure . . . . . . . . . . . . . . . . . 261
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . 328
Ventilation, Air . . . . . . . . . . . . . . . . . . 159
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Voltmeter Gauge . . . . . . . . . . . . . . . 100
W
Warning Brake System Light . . . . . . . . . . . 105
Caution and Danger . . . . . . . . . . . . . 3
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . . 96
Warnings Hazard Flashers . . . . . . . . . . . . . . 123
Washer Fluid . . . . . . . . . . . . . . . . . . . 233
Wheels
Alignment and Tire Balance . . 273
Different Size . . . . . . . . . . . . . . . . . 271
Replacement . . . . . . . . . . . . . . . . . 273
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 268
Where to Put the Restraint . . . . . . 73
Wi-Fi . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
Windows . . . . . . . . . . . . . . . . . . . . . . . . 38 Enhanced Technology Glass . . . 39
Manual . . . . . . . . . . . . . . . . . . . . . . . . . 38