2012 GMC CANYON air condition

Black plate (44,1)GMC Canyon Owner Manual - 2012
10-44 Vehicle Care
FusesUsage
RT HDLP Passenger Side
Headlamp
RVC Regulated Voltage
Control
S/ROOF Not Used
STOP Stop Lamps
STRTR Starter Solenoid
Relay
TBC Truck Body
Controller
TCM Transmission
Control Module
TCCM Transfer Case
Control Module Fuses
Usage
TRAILER
BRAKE Trailer Brake
TRANS Transmission
Solenoid
TRN/
HAZRD FRT Turn/Hazard/
Courtesy/Cargo
Lamps/Mirrors
TRN/
HAZRD
REAR Rear Turn/Hazard
Lights
VSES/STOP Vehicle Stability
Enhancement
System/Stop
WPR Wiper
WSW Wiper/Washer
Switch Relays
Usage
A/C
CMPRSR Air Conditioning
Compressor
Backup Lamp Backup Lamp
BEAM SEL Beam Selection
DRL Daylight Running
Lamps
FOG/LAMP Fog Lamps
(If Equipped)
HDLP Headlamps
HORN Horn
IGN 3 HVAC Ignition 3, Climate
Control, Climate
Control Head
Fuse, Power
Seat Fuse
PRK/LAMP Front Parking
Lamp Fuse, Rear
Parking Lamps

Black plate (45,1)GMC Canyon Owner Manual - 2012
Vehicle Care 10-45
RelaysUsage
PWR/TRN Powertrain,
Electronic Throttle
Control Fuse,
Oxygen
Sensor Fuse
RAP Retained
Accessory
Power (Power
Window Fuse,
Wiper/Washer
Switch Fuse)
RUN/CRNK Run/Crank, Airbag
System Fuse,
Cruise Control
Fuse, Ignition
Fuse, Back-Up
Lamps, ABS Fuse,
Front Axle, PCM-1,
Injectors Fuse,
Transmission
Fuse, ERLS Relays
Usage
STRTR Starter Relay
(PCM Relay)
VSES Vehicle Stability
Enhancement
System
WPR Wipers (On/Off)
WPR 2 Wiper 2 (High/Low) Miscellaneous Usage
A/C CLTCH Diode
—Air
Conditioning,
Clutch
MEGA FUSE Mega Fuse
WPR Diode
—
Wiper

Black plate (51,1)GMC Canyon Owner Manual - 2012
Vehicle Care 10-51
Tire Designations
Tire Size
The following is an example of a
typical passenger vehicle
tire size.
(A) Passenger (P‐Metric) Tire:
The United States version of a
metric tire sizing system. The
letter P as the first character in
the tire size means a passenger
vehicle tire engineered to
standards set by the U.S. Tire
and Rim Association.
(B) Tire Width
:The three‐digit
number indicates the tire section
width in millimeters from
sidewall to sidewall. (C) Aspect Ratio
:A two‐digit
number that indicates the tire
height‐to‐width measurements.
For example, if the tire size
aspect ratio is 60, as shown in
item C of the illustration, it would
mean that the tire's sidewall is
60 percent as high as it is wide.
(D) Construction Code
:
A letter code is used to indicate
the type of ply construction in
the tire. The letter R means
radial ply construction; the
letter D means diagonal or bias
ply construction; and the letter B
means belted‐bias ply
construction.
(E) Rim Diameter
:Diameter of
the wheel in inches.
(F) Service Description
:These
characters represent the load
index and speed rating of the
tire. The load index represents
the load carrying capacity a tire is certified to carry. The speed
rating is the maximum speed a
tire is certified to carry a load.
Tire Terminology and
Definitions
Air Pressure:The amount of
air inside the tire pressing
outward on each square inch
of the tire. Air pressure is
expressed in kPa (kilopascal)
or psi (pounds per square inch).
Accessory Weight
:The
combined weight of optional
accessories. Some examples of
optional accessories are
automatic transmission, power
steering, power brakes, power
windows, power seats, and air
conditioning.
Aspect Ratio
:The relationship
of a tire's height to its width.

Black plate (56,1)GMC Canyon Owner Manual - 2012
10-56 Vehicle Care
Tire Pressure for
High-Speed Operation
{WARNING
Driving at high speeds, 160 km/h
(100 mph) or higher, puts an
additional strain on tires.
Sustained high-speed driving
causes excessive heat buildup
and can cause sudden tire failure.
You could have a crash and you
or others could be killed. Some
high-speed rated tires require
inflation pressure adjustment for
high-speed operation. When
speed limits and road conditions
are such that a vehicle can be
driven at high speeds, make sure
the tires are rated for high-speed
operation, in excellent condition,
and set to the correct cold tire
inflation pressure for the
vehicle load.Vehicles with P235/50R18 size tires
require inflation pressure adjustment
when driving the vehicle at speeds
of 160 km/h (100 mph) or higher.
Set the cold inflation pressure to the
maximum inflation pressure shown
on the tire sidewall, or 241 kPa
(35 psi), whichever is lower. See the
example following. Return the tires
to the recommended cold tire
inflation pressure when high-speed
driving has ended. See
Vehicle
Load Limits on page 9‑18 andTire
Pressure on page 10‑54.
Example:
The maximum load and inflation
pressure is molded on the tire
sidewall, in small letters, near the
rim flange. It will read something
like this: Maximum load
690 kg (1521 lbs) 300 kPa (44 psi)
Max. Press.
For this example, set the inflation
pressure for high‐speed driving at
241 kPa (35 psi).
Tire Pressure Monitor
System
The Tire Pressure Monitor System
(TPMS) uses radio and sensor
technology to check tire pressure
levels. The TPMS sensors monitor
the air pressure in your tires and
transmit tire pressure readings to a
receiver located in the vehicle.
Each tire, including the spare
(if provided), should be checked
monthly when cold and inflated to
the inflation pressure recommended
by the vehicle manufacturer on the
vehicle placard or tire inflation
pressure label. (If your vehicle has
tires of a different size than the size
indicated on the vehicle placard or
tire inflation pressure label, you
should determine the proper tire
inflation pressure for those tires.)

Black plate (58,1)GMC Canyon Owner Manual - 2012
10-58 Vehicle Care
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 on your vehicle, excluding
the spare tire. The TPMS sensors
monitor the air pressure in your 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 cluster.If the warning light comes on, stop
as soon as possible and inflate the
tires to the recommended pressure
shown on the tire loading
information label. See
Vehicle Load
Limits on page 9‑18.
A message to check the pressure in
a specific tire displays in the Driver
Information Center (DIC). 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. For additional information
and details about the DIC operation
and displays see Driver Information
Center (DIC) on page 5‑20 andTire
Messages on page 5‑27.
The low tire pressure warning light
may come on in cool weather when
the vehicle is first started, and then
turn off as the vehicle is driven. This
could be an early indicator that the
air pressure is getting low and
needs to be inflated to the proper
pressure. A Tire and Loading Information label
shows the size of the original
equipment tires and the correct
inflation pressure for the tires when
they are cold. See
Vehicle Load
Limits on page 9‑18, for an example
of the Tire and Loading Information
label and its location on your
vehicle. Also see Tire Pressure on
page 10‑54.
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 10‑61, Tire Rotation on
page 10‑61 andTires on
page 10‑48.
Notice: Tire sealant materials are
not all the same. A non-approved
tire sealant could damage the
TPMS sensors. TPMS sensor
damage caused by using an
incorrect tire sealant is not
covered by the vehicle
warranty. Always use only the
GM-approved tire sealant
available through your dealer or
included in the vehicle.

Black plate (67,1)GMC Canyon Owner Manual - 2012
Vehicle Care 10-67
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
will not be necessary on a regular
basis. However, check the
alignment if there is unusual tire
wear or if the vehicle is pulling to
one side or the other. If the vehicle
vibrates when driving on a smooth
road, the tires and wheels might
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.
{WARNING
Using the wrong replacement
wheels, wheel bolts, or wheel
nuts can be dangerous. It could
affect the braking and handling of
the vehicle. Tires can lose air,
and cause loss of control, causing
a crash. Always use the correct
wheel, wheel bolts, and wheel
nuts for replacement.
Notice: The wrong wheel can
also cause problems with bearing
life, brake cooling, speedometer or odometer calibration,
headlamp aim, bumper height,
vehicle ground clearance, and tire
or tire chain clearance to the
body and chassis.
See
If a Tire Goes Flat on
page 10‑69 for more information.
Used Replacement Wheels
{WARNING
Replacing a wheel with a used
one is dangerous. How it has
been used or how far it has been
driven may be unknown. It could
fail suddenly and cause a crash.
When replacing wheels, use a
new GM original equipment
wheel.

Black plate (85,1)GMC Canyon Owner Manual - 2012
Vehicle Care 10-85
Compact Spare Tire
Your vehicle may have a compact
spare tire. Although the compact
spare tire was fully inflated when
your vehicle was new, it can lose air
over time. Check the inflation
pressure regularly. It should be
60 psi (420 kPa).
Notice:If the vehicle has
four-wheel drive and the compact
spare tire is installed on the
vehicle, do not drive in four-wheel
drive until you can have the flat
tire repaired and/or replaced. You
could damage the vehicle, and
the repair costs would not be
covered by your warranty. Never
use four-wheel drive when the
compact spare tire is installed on
the vehicle. After installing the compact spare
on your vehicle, you should stop as
soon as possible and make sure
your vehicle's spare tire is correctly
inflated. The compact spare is made
to perform well at speeds up to
62 mph (100 km/h) for distances up
to 500 miles (804 km). For heavy
payloads or towing, and for low
traction or four-wheel-drive
conditions, repair or replace the
full-size tire. Of course, it is best to
replace your vehicle's spare with a
full-size tire as soon as you can.
The spare tire will last longer and be
in good shape in case you need
it 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 your compact spare on
other vehicles.
And do not mix your compact spare
tire or wheel with other wheels or
tires. They will not fit. Keep your
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.

Black plate (86,1)GMC Canyon Owner Manual - 2012
10-86 Vehicle Care
Full-Size Spare Tire
Your vehicle may have a full-size
spare tire, which, when new, was
fully inflated. A spare tire may lose
air over time, so check its inflation
pressure regularly. SeeTire
Pressure on page 10‑54 and
Vehicle Load Limits on page 9‑18
for information regarding proper tire
inflation and loading your vehicle.
For instruction on how to remove,
install, or store a spare tire, see
“Removing the Flat Tire and
Installing the Spare Tire” and
“Storing a Flat or Spare Tire and
Tools” underTire Changing on
page 10‑70. Your vehicle may have a different
size spare tire than the road tires
originally installed on your vehicle.
This spare was developed for use
on your vehicle, so it is alright to
drive on it. If your vehicle has
four-wheel drive and the different
size spare tire is installed, keep the
vehicle in two-wheel drive.
Notice:
If the vehicle has
four-wheel drive and a different
size spare tire is installed, do not
drive in four-wheel drive until the
flat tire is repaired and/or
replaced. The vehicle could be
damaged and the repairs would
not be covered by the warranty.
Never use four-wheel drive when
a different size spare tire is
installed on the vehicle.
After installing the spare tire on your
vehicle, you should stop as soon as
possible and make sure the spare is
correctly inflated. The spare tire is
made to perform well at speeds up
to 62 mph (100 km/h) for distances
up to 500 miles (804 km). For heavy payloads or towing, and
for low traction or four-wheel-drive
conditions, repair or replace the
full-size tire. Have the damaged or
flat road tire repaired or replaced as
soon as you can and installed back
onto your vehicle. This way, the
spare tire will be available in case
you need it again.
Do not mix tires and wheels of
different sizes, because they will not
fit. Keep your spare tire and its
wheel together.