2010 GMC TERRAIN inflation pressure

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.

Vehicle Care 9-57
TPMS Sensor Matching
Process
Each TPMS sensor has a unique
identification code. Any time you
rotate your vehicle's tires or replace
one or more of the TPMS sensors,
the identification codes will need to
be matched to the new tire/wheel
position. The sensors are matched
to the tire/wheel positions in the
following order: driver side front tire,
passenger side front tire, passenger
side rear tire, and driver side rear
tire using a TPMS diagnostic tool.
See your dealer/retailer for service.
The TPMS sensors can also be
matched to each tire/wheel position
by increasing or decreasing the
tire's air pressure. If increasing the
tire's air pressure, do not exceed
the maximum inflation pressure
indicated on the tire's sidewall.To decrease air-pressure out of a
tire you can use the pointed end of
the valve cap, a pencil-style air
pressure gauge, or a key.
You have two minutes to match
the first tire/wheel position, and
five minutes overall to match all four
tire/wheel positions. If it takes longer
than two minutes, to match the first
tire and wheel, or more than
five minutes to match all four tire
and wheel positions the matching
process stops and you need to
start over.
The TPMS sensor matching process
is outlined below:
1. Set the parking brake.
2. Turn the ignition switch to
ON/RUN with the engine off. 3. Press the Remote Keyless Entry
(RKE) transmitter's lock and
unlock buttons at the same time
for approximately five seconds.
The horn sounds twice to signal
the receiver is in relearn mode
and Tire Learning Active
message displays on the DIC
screen.
4. Start with the driver side front tire.
5. Remove the valve cap from the valve cap stem. Activate the
TPMS sensor by increasing or
decreasing the tire's air pressure
for five seconds, or until a
horn chirp sounds. The horn
chirp, which may take up to
30 seconds to sound, confirms
that the sensor identification
code has been matched to this
tire and wheel position.
6. Proceed to the passenger side front tire, and repeat the
procedure in Step 5.

Vehicle Care 9-59
After the tires have been
rotated, adjust the front and rear
inflation pressures as shown on
the Tire and Loading Information
label. SeeTire Pressure
on
page 9‑52
and Vehicle Load
Limits
on page 8‑22.
Reset the Tire Pressure Monitor
System. See Tire Pressure
Monitor Operation
on page 9‑55.
Make certain that all wheel nuts
are properly tightened. See
“Wheel Nut Torque” under
Capacities and Specifications
on
page 11‑2
.
{WARNING
Rust or dirt on a wheel, or on the
parts to which it is fastened, can
make wheel nuts become loose
after time. The wheel could come
off and cause an accident. When
changing a wheel, remove any
rust or dirt from places where the
wheel attaches to the vehicle. In
an emergency, use a cloth or a
paper towel to do this; but be sure
to use a scraper or wire brush
later, if needed, to get all the rust
or dirt off. See If a Tire Goes Flat
on page 9‑67.
When It Is Time for New
Tires
Various factors, such as
maintenance, temperatures, driving
speeds, vehicle loading, and road
conditions influence when you need
new tires.
One way to tell when it is time for
new tires is to check the treadwear
indicators, which appear when the
tires have only 1.6 mm (1/16 inch) or
less of tread remaining.

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 9-77
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.

Service and Maintenance 10-3
system is reset accidentally,
service the vehicle within
5 000 km/3,000 miles since the
last service. Reset the oil life
system whenever the oil is changed.
SeeEngine Oil Life System
on
page 9‑12.
When the Change Engine Oil Soon
message displays, certain services,
checks, and inspections are
required. The services described for
Maintenance Ishould be performed
at every engine oil change. The
services described for Maintenance
II should be performed when:
.Maintenance Iwas performed
the last time the engine oil was
changed.
.It has been 10 months or more
since the Change Engine Oil
Soon message has displayed or
since the last service.
Maintenance I
.Change engine oil and filter. See
Engine Oilon page 9‑10.An
Emission Control Service.
.Engine coolant level check. See
Engine Coolant on page 9‑16.
.Windshield washer fluid level
check. See Washer Fluidon
page 9‑22.
.Tire inflation check. See Tire
Pressure on page 9‑52.
.Tire wear inspection. See Tire
Inspection on page 9‑58.
.Rotate tires. See Tire Rotationon page 9‑58.
.Fluids visual leak check (or
every 12 months, whichever
occurs first). A leak in any
system must be repaired and the
fluid level checked.
.Engine air cleaner filter
inspection (vehicles driven in
dusty conditions only). See
Engine Air Cleaner/Filter
on
page 9‑13.
.Brake system inspection (or
every 12 months, whichever
occurs first).
Maintenance II
.Perform all services described in
MaintenanceI.
.Steering and suspension
inspection. Visual inspection for
damaged, loose, or missing
parts or signs of wear.
.Engine cooling system
inspection. Visual inspection of
hoses, pipes, fittings, and
clamps and replacement,
if needed.

10-4 Service and Maintenance
.Windshield wiper blade
inspection for wear, cracking,
or contamination and windshield
and wiper blade cleaning,
if contaminated. SeeExterior
Care
on page 9‑85. Worn or
damaged wiper blade
replacement. See Wiper Blade
Replacement on page 9‑28.
.Body hinges and latches, key
lock cylinders, folding seat
hardware, and sunroof (if
equipped) lubrication. See
Recommended Fluids and
Lubricants
on page 10‑7. More
frequent lubrication may be
required when vehicle is
exposed to a corrosive
environment. Applying silicone
grease on weatherstrips with a
clean cloth makes them last
longer, seal better, and not stick
or squeak.
.Restraint system component
check. See Safety System
Check on page 2‑23.
.Automatic transmission fluid
level check and adding fluid,
if needed. See Automatic
Transmission Fluid
on
page 9‑13.
.Engine air cleaner filter
inspection. See Engine Air
Cleaner/Filter on page 9‑13.
Additional Required Services
At Each Fuel Stop
.Engine oil level check. See
Engine Oil on page 9‑10.
.Engine coolant level check. See
Engine Coolant on page 9‑16.
.Windshield washer fluid level
check. See Washer Fluidon
page 9‑22.
Once a Month
.Tire inflation check. See Tire
Pressure on page 9‑52.
.Tire wear inspection. See Tire
Inspection on page 9‑58. Once a Year
.See
Starter Switch Checkon
page 9‑26.
.See Automatic Transmission
Shift Lock Control System
Check on page 9‑27.
.See Ignition Transmission Lock
Check on page 9‑27.
.See Park Brake and P (Park)
Mechanism Checkon
page 9‑28.
.Engine cooling system and
pressure cap pressure check.
Radiator and air conditioning
condenser outside cleaning. See
Cooling System on page 9‑15.
.Exhaust system and nearby heat
shields inspection for loose or
damaged components.
.Accelerator pedal check for
damage, high effort, or binding.
Replace if needed.

10-6 Service and Maintenance
ServiceMaintenanceIMaintenance
II
Change engine oil and filter. Reset oil life system. ••
Engine coolant level check. ••
Windshield washer fluid level check. ••
Tire inflation pressures check. ••
Tire wear inspection. ••
Rotate tires. ••
Fluids visual leak check. ••
Engine air cleaner filter inspection (vehicles driven in dusty conditions only). ••
Brake system inspection. ••
Steering and suspension inspection. •
Engine cooling system inspection. •
Windshield wiper blades inspection. •
Body components lubrication. •
Restraint system components check. •
Automatic transmission fluid level check. •
Engine air cleaner filter inspection (vehicles not driven in dusty conditions). •