tire size GMC TERRAIN 2010 User Guide

Vehicle Care 9-55
Tire Pressure Monitor
Operation
This vehicle may have a Tire
Pressure Monitor System (TPMS).
The TPMS is designed to warn the
driver when a low tire pressure
condition exists. TPMS sensors are
mounted onto each tire and wheel
assembly, excluding the spare tire
and wheel assembly. The TPMS
sensors monitor the air pressure in
the vehicle's tires and transmit the
tire pressure readings to a receiver
located in the vehicle.
When a low tire pressure condition
is detected, the TPMS illuminates
the low tire pressure warning light
located on the instrument panel
cluster. If the warning light comes
on, stop as soon as possible andinflate the tires to the recommended
pressure shown on the tire loading
information label. See
Vehicle Load
Limits on page 8‑22.
At the same time a message to
check the pressure in a specific tire
appears on the Driver Information
Center (DIC) display. The low tire
pressure warning light and the DIC
warning message come on at each
ignition cycle until the tires are
inflated to the correct inflation
pressure. Using the DIC, tire
pressure levels can be viewed by
the driver. For additional information
and details about the DIC operation
and displays see Driver Information
Center (DIC) on page 4‑25.
The low tire pressure warning light
may come on in cool weather when
the vehicle is first started, and then
turn off as you start to drive. This
could be an early indicator that the
air pressure in the tire(s) are getting
low and need to be inflated to the
proper pressure. A Tire and Loading Information
label, attached to your vehicle,
shows the size of your vehicle's
original equipment tires and the
correct inflation pressure for your
vehicle's tires when they are cold.
See
Vehicle Load Limits
on
page 8‑22, for an example of the
Tire and Loading Information label
and its location on your vehicle.
Also see Tire Pressure
on
page 9‑52.
Your vehicle's TPMS can warn you
about a low tire pressure condition
but it does not replace normal tire
maintenance. See Tire Inspection
on page 9‑58,Tire Rotationon
page 9‑58and Tires on page 9‑45.
Notice: Liquid tire sealants could
damage the Tire Pressure Monitor
System (TPMS) sensors. Sensor
damage caused by using a tire
sealant is not covered by your
warranty. Do not use liquid tire
sealants.

9-60 Vehicle Care
The vehicle needs new tires if any
of the following statements are true:
.You can see the indicators at
three or more places around
the tire.
.You can see 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.
The rubber in tires degrades over
time. This is also true for the spare
tire, if the vehicle has one, even
if it is not being used. Multiple
conditions affect how fast this aging
takes place, including temperatures,
loading conditions, and inflation
pressure maintenance. With proper
care and maintenance tires typically wear out before they degrade due to
age. If you are unsure about the
need to replace the tires as they get
older, consult the tire manufacturer
for more information.
Buying New Tires
GM has developed and matched
specific tires for your vehicle.
The original equipment tires
installed on your vehicle,
when it was new, were designed
to meet General Motors Tire
Performance Criteria
Specification (TPC Spec)
system rating. If you need
replacement tires, GM strongly
recommends that you get tires
with the same TPC Spec rating.
This way, your vehicle will
continue to have tires that are
designed to give the same
performance and vehicle safety,
during normal use, as the
original tires.
GM's exclusive TPC Spec
system considers over a dozen
critical specifications that impact
the overall performance of your
vehicle, including brake system
performance, ride and handling,
traction control, and tire
pressure monitoring
performance. GM's TPC Spec
number is molded onto the tire's
sidewall near the tire size. If the
tires have an all‐season tread
design, the TPC Spec number
will be followed by an MS for
mud and snow. See
Tire
Sidewall Labeling
on page 9‑46
for additional information.
GM recommends replacing tires
in sets of four. This is because
uniform tread depth on all tires
will help keep your vehicle
performing most like it did when
the tires were new. Replacing
less than a full set of tires can
affect the braking and handling
performance of your vehicle.

Vehicle Care 9-61
SeeTire Inspectionon page 9‑58
andTire Rotationon page 9‑58
for information on proper tire
rotation.
{WARNING
Mixing tires could cause you
to lose control while driving.
If you mix tires of different
sizes, brands, or types (radial
and bias-belted tires), the
vehicle may not handle
properly, and you could have
a crash. Using tires of different
sizes, brands, or types may
also cause damage to your
vehicle. Be sure to use the
correct size, brand, and type
of tires on all wheels. It is all
right to drive with your
compact spare temporarily, as
it was developed for use on
your vehicle. See Compact
Spare Tire
on page 9‑76.
{WARNING
If you use bias-ply tires on the
vehicle, the wheel rim flanges
could develop cracks after
many miles of driving. A tire
and/or wheel could fail
suddenly, causing a crash.
Use only radial-ply tires with
the wheels on the vehicle.
If you must replace your
vehicle's tires with those that do
not have a TPC Spec number,
make sure they are the same
size, load range, speed rating,
and construction type (radial and
bias‐belted tires) as your
vehicle's original tires. Vehicles that have a tire
pressure monitoring system
could give an inaccurate
low‐pressure warning if non‐TPC
Spec rated tires are installed
on your vehicle. Non‐TPC
Spec rated tires may give a
low‐pressure warning that is
higher or lower than the proper
warning level you would get with
TPC Spec rated tires. See
Tire
Pressure Monitor System
on
page 9‑53
.
Your vehicle's original
equipment tires are listed on the
Tire and Loading Information
Label. See Vehicle Load Limits
on page 8‑22, for more
information about the Tire and
Loading Information Label and
its location on your vehicle.

9-62 Vehicle Care
Different Size Tires and
Wheels
If you add wheels or tires that are a
different size than your original
equipment wheels and tires, this
could affect the way your vehicle
performs, including its braking, ride
and handling characteristics,
stability, and resistance to rollover.
Additionally, if your vehicle has
electronic systems such as anti‐lock
brakes, rollover airbags, traction
control, and electronic stability
control, the performance of these
systems can be affected.
{WARNING
If you add different sized wheels,
your vehicle may not provide an
acceptable level of performance
and safety if tires not
recommended for those wheels
are selected. You may increase
the chance that you will crash and
suffer serious injury. Only use GM
specific wheel and tire systems
developed for your vehicle, and
have them properly installed by a
GM certified technician.
See Buying New Tires
on
page 9‑60and Accessories and
Modificationson page 9‑3for
additional information.
Uniform Tire Quality
Grading
Quality grades can be found
where applicable on the tire
sidewall between tread shoulder
and maximum section width.
For example:
Treadwear 200 Traction AA
Temperature A
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.

9-66 Vehicle Care
Used Replacement Wheels
{WARNING
Putting a used wheel on the
vehicle is dangerous. You cannot
know how it has been used or
how far it has been driven.
It could fail suddenly and cause a
crash. If you have to replace a
wheel, use a new GM original
equipment wheel.
Tire Chains
{WARNING
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 you to lose
control of the vehicle and you or
others may be injured in a crash.(Continued)
WARNING (Continued)
Use another type of traction
device only if its manufacturer
recommends it for use on the
vehicle and tire size combination
and road conditions. Follow that
manufacturer's instructions. To
help avoid damage to the vehicle,
drive slowly, readjust or remove
the device if it is contacting the
vehicle, and do not spin the
vehicle's wheels. If you do find
traction devices that will fit, install
them on the front tires.

9-74 Vehicle Care
16. Reinstall the wheel nuts.Tighten each nut by hand until
the wheel is held against
the hub.
17. Lower the vehicle by turning the jack handle
counterclockwise.
{WARNING
Wheel nuts that are improperly or
incorrectly tightened can cause
the wheels to become loose or
come off. The wheel nuts should
be tightened with a torque wrench
to the proper torque specification
after replacing. Follow the torque
specification supplied by the
aftermarket manufacturer when
using accessory locking wheel
nuts. See Capacities and
Specifications
on page 11‑2for
original equipment wheel nut
torque specifications. Notice:
Improperly tightened
wheel nuts can lead to brake
pulsation and rotor damage. To
avoid expensive brake repairs,
evenly tighten the wheel nuts in
the proper sequence and to the
proper torque specification. See
Capacities and Specifications
on
page 11‑2for the wheel nut
torque specification.
18. Tighten the wheel nuts firmly in a crisscross sequence, as
shown. 19. Lower the jack all the way and
remove the jack from under the
vehicle.
20. Tighten the wheel nuts firmly with the wheel wrench.
When reinstalling the wheel cover
or center cap on the full-size tire,
tighten all five plastic caps hand
snug with the aid of the wheel
wrench and tighten them with
the wheel wrench an additional
one‐quarter of a turn.
Notice: Wheel covers will not fit
on your vehicle's compact spare.
If you try to put a wheel cover on
the compact spare, the cover or
the spare could be damaged.

9-76 Vehicle Care
5. Hook the cable onto the outsideportion of the liftgate hinges (B).
6. Hook the other end of the cable onto the outside portion of the
liftgate hinge on the other side of
the vehicle.
7. Pull on the cable to make sure it is secure.8. Make sure the metal tube iscentered at the striker. Push the
tube toward the front of the
vehicle.
9. Close the liftgate and make sure it is latched properly.
The compact spare is for temporary
use only. Replace the compact
spare tire with a full-size tire as
soon as you can.
Compact Spare Tire
{WARNING
Driving with more than one
compact spare tire at a time could
result in loss of braking and
handling. This could lead to a
crash and you or others could be
injured. Use only one compact
spare tire at a time.

Vehicle Care 9-77
If this vehicle has a compact spare
tire it was fully inflated when the
vehicle was new, however, it can
lose air after a time. Check the
inflation pressure regularly. It should
be 420 kPa (60 psi).
After installing the compact spare
on the vehicle, stop as soon as
possible and make sure the spare
tire is correctly inflated. The
compact spare is made to perform
well at speeds up to 105 km/h
(65 mph) for distances up to
5 000 km (3,000 miles), so you canfinish your trip and have the full-size
tire repaired or replaced at your
convenience. Of course, it is best to
replace the spare with a full-size tire
as soon as possible. The spare tire
will last longer and be in good
shape in case it is needed again.
Notice:
When the compact spare
is installed, do not take the
vehicle through an automatic car
wash with guide rails. The
compact spare can get caught on
the rails which can damage the
tire, wheel and other parts of the
vehicle. Do not use the compact spare on
other vehicles.
Do not mix the compact spare tire or
wheel with other wheels or tires.
They will not fit. Keep the spare tire
and its wheel together.
Notice:
Tire chains will not fit the
compact spare. Using them can
damage the vehicle and can
damage the chains too. Do not
use tire chains on the compact
spare.

Vehicle Care 9-83
4. Turn all accessories off.
5. To prevent the battery fromdraining while the vehicle is
being towed, remove fuse 32,
the Discrete Logic Ignition
Switch fuse, from the instrument
panel fuse block and store it in a
safe location. See Instrument
Panel Fuse Block on page 9‑42.
Notice: If the vehicle is towed
without performing each of the
steps listed under “Dinghy
Towing,” the automatic
transmission could be damaged.
Be sure to follow all steps of the
dinghy towing procedure prior to
and after towing the vehicle.
Notice: If 105 km/h (65 mph) is
exceeded while towing the
vehicle, it could be damaged.
Never exceed 105 km/h (65 mph)
while towing the vehicle. Once the destination has been
reached:
1. Set the parking brake.
2. Shift the transmission to
P (Park).
3. Turn the ignition key to LOCK/OFF.
4. Install fuse 32, the Discrete Logic Ignition Switch fuse. See
Instrument Panel Fuse Block
on
page 9‑42.
5. Start the engine and let it idle for more than three minutes before
driving the vehicle.
Notice: Too much or too
little fluid can damage the
transmission. Be sure that the
transmission fluid is at the proper
level before towing with all four
wheels on the ground. Notice:
Do not tow a vehicle with
the front drive wheels on the
ground if one of the front tires is
a compact spare tire. Towing with
two different tire sizes on the
front of the vehicle can cause
severe damage to the
transmission.
Dolly Towing
(All-Wheel‐Drive Vehicles)
All-wheel‐drive vehicles should not
be towed with two wheels on the
ground. To properly tow these
vehicles, they should be placed on
a platform trailer with all four wheels
off of the ground or dinghy towed
from the front.

INDEX i-11
Starter Switch Check . . . . . . . . . . 9-26
Starting the Engine . . . . . . . . . . . . 8-29
Steering . . . . . . . . . . . . . . . . . . . . . . . . 8-5Fluid, Power . . . . . . . . . . . . . . . . . . 9-21
Wheel Adjustment . . . . . . . . . . . . . 4-6
Wheel Controls . . . . . . . . . . . . . . . . 4-6
Stoplamps and Back-Up Lamps
Bulb Replacement . . . . . . . . . . . . 9-34
Storage Mass Media (MEM) . . . . . . . . . . . 6-24
Storage Areas
Center Console . . . . . . . . . . . . . . . . 3-1
Convenience Net . . . . . . . . . . . . . . 3-2
Glove Box . . . . . . . . . . . . . . . . . . . . . 3-1
Instrument Panel . . . . . . . . . . . . . . 3-1
Roof Rack System . . . . . . . . . . . . . 3-2
Stuck Vehicle . . . . . . . . . . . . . . . . . . 8-22
Sun Visors . . . . . . . . . . . . . . . . . . . . . 1-18
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . iv
System Roof Rack . . . . . . . . . . . . . . . . . . . . . 3-2
System Check Automatic TransmissionShiftlock Control . . . . . . . . . . . . 9-27T
Tachometer . . . . . . . . . . . . . . . . . . . . 4-13
Taillamps
Bulb Replacement . . . . . . . . . . . . 9-34
Text Telephone (TTY) Users . . . 12-4
Theft-Deterrent Systems . . . . . . . 1-13 Immobilizer . . . . . . . . . . . . . . . . . . . 1-13
Time . . . . . . . . . . . . . . . . . . . . . . 4-9, 4-10
Tires Buying New Tires . . . . . . . . . . . . . 9-60
Chains . . . . . . . . . . . . . . . . . . . . . . . . 9-66
Changing . . . . . . . . . . . . . . . . . . . . . 9-69
Compact Spare . . . . . . . . . . . . . . . 9-76
Designations . . . . . . . . . . . . . . . . . 9-48
Different Size . . . . . . . . . . . . . . . . . 9-62
If a Tire Goes Flat . . . . . . . . . . . . 9-67
Inflation Monitor System . . . . . . 9-55
Inspection . . . . . . . . . . . . . . . . . . . . 9-58
Messages . . . . . . . . . . . . . . . . . . . . 4-35
Pressure Light . . . . . . . . . . . . . . . . 4-22
Pressure Monitor System . . . . . 9-53
Rotation . . . . . . . . . . . . . . . . . . . . . . 9-58
Sidewall Labeling . . . . . . . . . . . . . 9-46
Terminology andDefinitions . . . . . . . . . . . . . . . . . . . 9-49 Tires (cont.)
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 9-62
Wheel Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . . . 9-64
Wheel Replacement . . . . . . . . . . 9-65
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 9-59
Towing
Driving Characteristics . . . . . . . . 8-58
Equipment . . . . . . . . . . . . . . . . . . . . 8-65
General Information . . . . . . . . . . 8-58
Recreational Vehicle . . . . . . . . . . 9-81
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 8-62
Trailer Sway Control (TSC) . . . 8-66
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 9-81
Traction Control System (TCS) . . . . . . . . 8-41
Control System (TCS)/
StabiliTrak
®Light . . . . . . . . . . . . 4-21
Off Light . . . . . . . . . . . . . . . . . . . . . . 4-21
Trailer Sway Control (TSC) . . . . . . . . . . 8-66
Trailer Towing . . . . . . . . . . . . . . . . . 8-62