ECU GMC CANYON 2008 Repair Manual

Tire Chains
{CAUTION:
If your vehicle has P225/75R15, P265/75R15,
P235/75R15, P265/70R17, or P235/50R18 size
tires, do not use tire chains. They can damage
your vehicle because 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 your vehicle and you or others
may be injured in a crash.
CAUTION: (Continued)
CAUTION: (Continued)
Use another type of traction device only if
its manufacturer recommends it for use on
your vehicle and tire size combination and
road conditions. Follow that manufacturer’s
instructions. To help avoid damage to your
vehicle, drive slowly, readjust, or remove
the device if it is contacting your vehicle.
Do not spin the vehicle’s wheels.
If you do nd traction devices that will t,
install them on the rear tires.
Notice:If your vehicle has a tire size other than
P225/75R15, P265/75R15, P235/75R15, P265/70R17,
or P235/50R18 use tire chains only where legal and
only when you must. Use chains that are the proper
size for your tires. Install them on the tires of the rear
axle. Do not use chains on the tires of the front axle.
Tighten them as tightly as possible with the ends
securely fastened. Drive slowly and follow the chain
manufacturer’s instructions. If you can hear the
chains contacting your vehicle, stop and retighten
them. If the contact continues, slow down until it
stops. Driving too fast or spinning the wheels with
chains on will damage your vehicle.
5-78

For regular and extended
cab vehicles, the jack and
wheel blocks are located
under the cover at the
center of the vehicle
behind the front seats.
To access the tools:
1. Move the seats forward
to access the cover.2. Turn the wing nut on the cover counterclockwise
to remove it.
For crew cab models, reach under the rear seat
to access the jack and wheel blocks. To reinstall
the jack and wheel block assembly in the mounting
bracket, insert the tabs into the jack base by
pushing the blocks up into the assembly. The outer
hole in the jack base aligns with the tab on the
bracket. When reinstalling, make sure the jack
is secure, but do not overtighten the jack in
the bracket.
3. Remove the wheel blocks and the wheel block
retainer by turning the wing nut counterclockwise.
4. Put the wheel blocks at the front and rear of the tire
farthest away from the one being changed. That
would be the tire on the other side, at the opposite
end of the vehicle.
5. Locate the wing nut used to retain the storage bag
and tools which is under the front passenger’s seat.
Remove it by turning the wing nut counterclockwise.
Use the jack handle extensions and the wheel wrench
to remove the underbody-mounted spare tire. Regular/Extended Cab
Extended/Regular Cab
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If the at tire is on the front of the vehicle, position
the jack to the rear of the front tire in the pocket
off of the frame.If the at tire is on the rear, position the jack under
the rear axle and get as close as possible to the
shock absorber.
5. Make sure the jack head is positioned so that the
rear axle is resting securely between the grooves
that are on the jack head.
6. Turn the wheel wrench clockwise to raise the
vehicle. Raise the vehicle far enough off the
ground so there is enough room for the spare
tire to t under the wheel well. Front Position
Rear Position
5-87

3. Loosen the cable by turning the wrench
counterclockwise three or four turns.
4. Repeat this procedure at least two times. If the spare
tire lowers to the ground, continue with Step 5 of
Removing the Spare Tire and Tools on page 5-81.
5. If the spare does not lower, turn the wrench
counterclockwise until approximately 6 inches
(15 cm) of cable is exposed.
6. Stand the wheel blocks on their shortest ends,
with the backs facing each other.
7. Place the bottom
edge of the jack (A) on
the wheel blocks (B),
separating them so
that the jack is
balanced securely.8. Attach the jack handle, extension, and wheel wrench
to the jack and place it (with the wheel blocks) under
the vehicle toward the front of the rear bumper.
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4. Insert the hoist end of the extension through the hole
in the rear bumper and into the funnel-shaped guide.
5. Turn the wheel wrench clockwise to raise the
tire part way up. Make sure the retainer is seated
in the wheel opening and the valve stem is
pointed down.
Continue raising the tire, watch to make sure it does
not get caught on anything on the underbody. If the
tire does get caught, loosen up two or three turns
and push and pull the tire and then retighten.
Repeat this procedure as many times as needed
to ensure proper stowage.6. When the tire is properly seated to the underbody,
continue turning the wheel wrench clockwise
until you feel the override which is 2 skips.
You cannot overtighten the cable.
7. Make sure the tire is stored securely. Push, pull (A),
and then try to turn (B) the tire. If the tire moves,
check to make sure the tire valve stem is pointing
down, then use the wheel wrench to loosen
and then tighten the cable.
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To store the tools, do the following:
1. Return the wheel wrench, jack extensions and the
storage bag to the locations described under
Removing the Spare Tire and Tools on page 5-81.
2. Install the wheel blocks rst. Then install the jack.
3. Secure the items in the vehicle as shown next.
A. Jack
B. Wheel Blocks
C. Wing NutA. Jack
B. Wheel Blocks
C. Wing Nut
Crew Cab
Regular/Extended Cab
5-97

At Each Fuel Fill
It is important to perform these underhood checks at
each fuel fill.
Engine Oil Level Check
Notice:It is important to check the engine oil
regularly and keep it at the proper level. Failure to
keep the engine oil at the proper level can cause
damage to the engine not covered by your warranty.
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-15.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL®
coolant mixture if necessary. SeeEngine Coolant
on page 5-26.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the windshield
washer uid reservoir and add the proper uid if
necessary.
At Least Once a Month
Tire Ination Check
Inspect your vehicle’s tires and make sure they are
inated to the correct pressures. Do not forget to
check the spare tire. SeeInflation - Tire Pressure on
page 5-62. Check to make sure the spare tire is stored
securely. SeeChanging a Flat Tire on page 5-80.
Tire Wear Inspection
Tire rotation may be required for high mileage highway
drivers prior to the Engine Oil Life System service
notication. Check the tires for wear and, if necessary,
rotate the tires. SeeTire Inspection and Rotation
on page 5-70.
6-9

Roadside Assistance Program
For vehicles purchased in the U.S. call,
1-800-GMC-8782 (1-800-462-8782);
(Text telephone (TTY): 1-888-889-2438).
For vehicles purchased in Canada, call1-800-268-6800.
Service is available 24 hours a day, 365 days a year.
As the owner of a new GMC vehicle, you are
automatically enrolled in the GMC Roadside Assistance
program.
Who is Covered?
Roadside Assistance coverage is for the vehicle
operator, regardless of ownership. In Canada, a person
driving the vehicle without the consent of the owner is
not eligible for coverage.
Services Provided
The following services are provided in the U.S. and
Canada up to 5 years/100,000 miles (160 000 km),
whichever occurs rst, and, in Canada only, up to a
maximum coverage of $100.
Fuel Delivery:Delivery of enough fuel for the vehicle
to get to the nearest service station (approximately
$5 in Canada). In Canada, service to provide diesel
may be restricted. For safety reasons, propane and
other alternative fuels will not be provided through
this service.
Lock-out Service:Lock-out service will be covered
at no charge if you are unable to gain entry into your
vehicle. A remote unlock may be available if you
have an active OnStar
®subscription. To ensure
security, the driver must present personal
identication before lock-out service is provided.
In Canada, the vehicle registration is also required.
Emergency Tow From a Public Roadway or
Highway:Tow to the nearest dealership for warranty
service or in the event of a vehicle-disabling crash.
Winch-out assistance is provided when the vehicle is
mired in sand, mud, or snow.
Flat Tire Change:Installation of a spare tire in good
condition, when equipped and properly inated, is
covered at no charge. The customer is responsible
for the repair or replacement of the tire if not covered
by a warrantable failure.
Jump Start:A battery jump start is covered at no
charge if the vehicle does not start.
Trip Routing Service:Upon request, Roadside
Assistance will send you detailed, computer
personalized maps, highlighting your choice of either
the most direct route or the most scenic route to your
destination, anywhere in North America, along with
helpful travel information pertaining to your trip.
Please allow three weeks before your planned
departure date. In Canada, trip routing requests
will be limited to six per calendar year.
7-7

Trip Interruption Benets and Assistance:In the
event of a warranty related vehicle disablement,
while en route and over 150 miles (250 kilometres)
from original point of departure, you may qualify for
trip interruption expense assistance. This assistance
covers reasonable reimbursement of up to a
maximum of $500. In Canada, maximums include:
(A) meals (maximum of $50/day), (B) lodging
(maximum of $100/night) and (C) alternate ground
transportation (maximum of $40/day). This benet is
to assist you with some of the unplanned expense
you may incur while waiting for your vehicle to be
repaired.
Original detailed receipts, and a copy of the repair
order are required. In Canada, pre-authorization is
also required.
Once authorization has been given, your advisor will
help you make any necessary arrangements and
explain how to claim for trip interruption expense
assistance.
Alternative Service (Canada only):There may be
times, when Roadside Assistance cannot provide
timely assistance. Your advisor may authorize you to
secure local emergency road service, and you will be
reimbursed up to $100 (Canadian) upon submission
of the original receipt to Roadside Assistance.In many instances, mechanical failures may be covered.
However, when other services are utilized, our
Roadside Assistance Representatives will explain
any payment obligations you might incur.
GMC and General Motors of Canada Limited reserve
the right to limit services or reimbursement to an owner
or driver when, in their sole discretion, the claims
become excessive in frequency or type of occurrence.
Calling For Assistance
For prompt and efficient assistance when calling, please
provide the following to the Roadside Assistance
Representative:
Your name, home address, and home telephone
number
Telephone number of your location
Location of the vehicle.
Model, year, color, and license plate number of the
vehicle
Odometer reading, Vehicle Identication
Number (VIN), and delivery date of the vehicle
Description of the problem
7-8

To read data recorded by an EDR, special equipment
is required, and access to the vehicle or the EDR is
needed. In addition to the vehicle manufacturer, other
parties, such as law enforcement, that have the special
equipment, can read the information if they have access
to the vehicle or the EDR.
GM will not access this data or share it with others
except: with the consent of the vehicle owner or, if the
vehicle is leased, with the consent of the lessee; in
response to an official request of police or similar
government office; as part of GM’s defense of litigation
through the discovery process; or, as required by law.
Data that GM collects or receives may also be used for
GM research needs or may be made available to others
for research purposes, where a need is shown and the
data is not tied to a specic vehicle or vehicle owner.
OnStar®
If your vehicle has OnStar®and you subscribe to the
OnStar®services, please refer to the OnStar®Terms
and Conditions for information on data collection and use.
See alsoOnStar
®System on page 2-47in this manual for
more information.
Navigation System
If your vehicle has a navigation system, use of the
system may result in the storage of destinations,
addresses, telephone numbers, and other trip
information. Refer to the navigation system operating
manual for information on stored data and for deletion
instructions.
Radio Frequency
Identication (RFID)
RFID technology is used in some vehicles for functions
such as tire pressure monitoring and ignition system
security, as well as in connection with conveniences
such as key fobs for remote door locking/unlocking and
starting, and in-vehicle transmitters for garage door
openers. RFID technology in GM vehicles does not use
or record personal information or link with any other GM
system containing personal information.
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