2010 GMC CANYON engine

If parking the rig on a hill:
1. Press the brake pedal, but do not shift into P (Park)
yet for vehicles with an automatic transmission, or
into gear for vehicles with a manual transmission.
Turn the wheels into the curb if facing downhill
or into traffic if facing uphill.
2. Have someone place chocks under the trailer
wheels.
3. When the wheel chocks are in place, release the
brake pedal until the chocks absorb the load.
4. Reapply the brake pedal. Then apply the parking
brake and shift into P (Park) for vehicles with an
automatic transmission or into gear for vehicles with
a manual transmission.5. If the vehicle has four-wheel-drive, be sure
the transfer case is in a drive gear and not in
N (Neutral). SeeFour-Wheel Drive on page 3-25
for more information.
6. Release the brake pedal.
Leaving After Parking on a Hill
1. Apply and hold the brake pedal while you:
•Start the engine
•Shift into a gear
•Release the parking brake
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the
chocks.
5-59

Maintenance When Trailer Towing
The vehicle needs service more often when pulling a
trailer. SeeScheduled Maintenance on page 7-3or the
Index for more information. Things that are especially
important in trailer operation are automatic transmission
fluid, engine oil, axle lubricant, belts, cooling system
and brake system. It is a good idea to inspect
these before and during the trip.
Check periodically to see that all hitch nuts and bolts
are tight.
Trailer Wiring Harness
The vehicle may be equipped with a four-pin trailer
towing harness. This harness has a four-pin trailer
connector that is attached to a bracket on the hitch
platform. The four-wire harness contains the following
trailer circuits:
•Yellow: Left Stop/Turn Signal
•Green: Right Stop/Turn Signal
•Brown: Taillamps/Park lamps
•White: Ground
Trailer Recommendations
Subtract the hitch loads from the Cargo Weight Rating
(CWR). CWR is the maximum weight of the load
the vehicle can carry. It does not include the weight of
the people inside, but you can figure about 150 lbs.
(68 kg) for each passenger. The total cargo load must
not be more than the vehicles CWR.
Weigh the vehicle with the trailer attached, so the
GVWR or GAWR are not exceeded. If using a
weight-distributing hitch, weigh the vehicle without the
spring bars in place.
The best performance is obtained by correctly spreading
out the weight of the load and choosing the correct
hitch and trailer brakes.
For more information seeTowing a Trailer on page 5-48.
5-60

Service............................................................6-3
Accessories and Modifications..........................6-3
California Proposition 65 Warning.....................6-4
California Perchlorate Materials Requirements.....6-4
Doing Your Own Service Work.........................6-4
Adding Equipment to the Outside of the
Vehicle......................................................6-5
Fuel................................................................6-5
Gasoline Octane............................................6-5
Gasoline Specifications....................................6-6
California Fuel...............................................6-6
Additives.......................................................6-6
Fuels in Foreign Countries...............................6-7
Filling the Tank..............................................6-8
Filling a Portable Fuel Container.....................6-10
Checking Things Under the Hood....................6-10
Hood Release..............................................6-11
Engine Compartment Overview.......................6-12
Engine Oil...................................................6-15
Engine Oil Life System..................................6-18
Engine Air Cleaner/Filter................................6-20
Automatic Transmission Fluid.........................6-21
Manual Transmission Fluid.............................6-25
Hydraulic Clutch...........................................6-26
Cooling System............................................6-27Engine Coolant.............................................6-29
Engine Overheating.......................................6-35
Engine Fan Noise.........................................6-36
Power Steering Fluid.....................................6-37
Windshield Washer Fluid................................6-38
Brakes........................................................6-39
Battery........................................................6-42
Jump Starting...............................................6-43
Rear Axle.......................................................6-47
Four-Wheel Drive
............................................6-48
Front Axle......................................................6-49
Headlamp Aiming...........................................6-50
Bulb Replacement..........................................6-50
Halogen Bulbs..............................................6-50
Headlamps..................................................6-51
Front Turn Signal, Parking and Daytime
Running Lamps (DRL)................................6-52
Center High-Mounted Stoplamp (CHMSL).........6-52
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps.........................................6-53
License Plate Lamp......................................6-54
Replacement Bulbs.......................................6-54
Windshield Wiper Blade Replacement..............6-55
Section 6 Service and Appearance Care
6-1

Tires..............................................................6-57
Tire Sidewall Labeling...................................6-58
Tire Terminology and Definitions.....................6-61
Inflation - Tire Pressure.................................6-64
High-Speed Operation...................................6-65
Tire Pressure Monitor System.........................6-66
Tire Pressure Monitor Operation.....................6-67
Tire Inspection and Rotation...........................6-71
When It Is Time for New Tires.......................6-72
Buying New Tires.........................................6-73
Different Size Tires and Wheels......................6-75
Uniform Tire Quality Grading..........................6-75
Wheel Alignment and Tire Balance..................6-77
Wheel Replacement......................................6-77
Tire Chains..................................................6-78
If a Tire Goes Flat........................................6-79
Changing a Flat Tire.....................................6-80
Removing the Spare Tire and Tools................6-81
Removing the Flat Tire and Installing the
Spare Tire................................................6-85
Secondary Latch System...............................6-93
Storing a Flat or Spare Tire and Tools............6-96
Spare Tire.................................................6-101
Appearance Care..........................................6-102
Interior Cleaning.........................................6-102
Fabric/Carpet..............................................6-103Leather......................................................6-104
Instrument Panel, Vinyl, and Other Plastic
Surfaces.................................................6-105
Care of Safety Belts....................................6-105
Weatherstrips.............................................6-105
Washing Your Vehicle..................................6-106
Cleaning Exterior Lamps/Lenses....................6-106
Finish Care................................................6-107
Windshield and Wiper Blades.......................6-107
Aluminum or Chrome-Plated Wheels and Trim . . .6-108
Tires.........................................................6-108
Sheet Metal Damage...................................6-109
Finish Damage...........................................6-109
Underbody Maintenance...............................6-109
Chemical Paint Spotting...............................6-109
Vehicle Identication.....................................6-110
Vehicle Identification Number (VIN)................6-110
Service Parts Identification Label...................6-110
Electrical System..........................................6-111
Add-On Electrical Equipment.........................6-111
Windshield Wiper Fuses...............................6-111
Fuses and Circuit Breakers..........................6-111
Engine Compartment Fuse Block...................6-112
Capacities and Specications........................6-118
Section 6 Service and Appearance Care
6-2

California Proposition 65 Warning
Most motor vehicles, including this one, contain and/or
emit chemicals known to the State of California to cause
cancer and birth defects or other reproductive harm.
Engine exhaust, many parts and systems, many fluids,
and some component wear by-products contain and/or
emit these chemicals.
California Perchlorate Materials
Requirements
Certain types of automotive applications, such as
airbag initiators, seat belt pretensioners, and lithium
batteries contained in remote keyless transmitters,
may contain perchlorate materials. Special handling
may be necessary. For additional information, see
www.dtsc.ca.gov/hazardouswaste/perchlorate.
Doing Your Own Service Work
{WARNING:
You can be injured and the vehicle could be
damaged if you try to do service work on a vehicle
without knowing enough about it.
•Be sure you have sufficient knowledge,
experience, the proper replacement parts,
and tools before attempting any vehicle
maintenance task.
•Be sure to use the proper nuts, bolts, and
other fasteners. English and metric fasteners
can be easily confused. If the wrong fasteners
are used, parts can later break or fall off.
You could be hurt.
If doing some of your own service work, use the proper
service manual. It tells you much more about how to
service the vehicle than this manual can. To order
the proper service manual, seeService Publications
Ordering Information on page 8-15.
6-4

This vehicle has an airbag system. Before attempting
to do your own service work, seeServicing Your
Airbag-Equipped Vehicle on page 2-79.
Keep a record with all parts receipts and list the
mileage and the date of any service work performed.
SeeMaintenance Record on page 7-14.
Adding Equipment to the Outside of
the Vehicle
Things added to the outside of the vehicle can affect the
airflow around it. This can cause wind noise and can
affect fuel economy and windshield washer performance.
Check with your dealer/retailer before adding equipment
to the outside of the vehicle.
Fuel
Use of the recommended fuel is an important part of the
proper maintenance of this vehicle. To help keep the
engine clean and maintain optimum vehicle performance,
we recommend the use of gasoline advertised as
TOP TIER Detergent Gasoline.
Look for the TOP TIER label on the fuel pump to
ensure gasoline meets enhanced detergency standards
developed by auto companies. A list of marketers
providing TOP TIER Detergent Gasoline can be
found at www.toptiergas.com.Gasoline Octane
Use regular unleaded gasoline with a posted octane
rating of 87 or higher. If the octane rating is less than 87,
you might notice an audible knocking noise when you
drive, commonly referred to as spark knock. If this occurs,
use a gasoline rated at 87 octane or higher as soon as
possible. If you are using gasoline rated at 87 octane or
higher and you hear heavy knocking, the engine needs
service.
6-5

Gasoline Specications
At a minimum, gasoline should meet ASTM specification
D 4814 in the United States or CAN/CGSB-3.5 or 3.511 in
Canada. Some gasolines contain an octane-enhancing
additive called methylcyclopentadienyl manganese
tricarbonyl (MMT). We recommend against the use of
gasolines containing MMT. SeeAdditives on page 6-6
for additional information.
California Fuel
If the vehicle is certified to meet California Emissions
Standards, it is designed to operate on fuels that meet
California specifications. See the underhood emission
control label. If this fuel is not available in states adopting
California emissions standards, the vehicle will operate
satisfactorily on fuels meeting federal specifications, but
emission control system performance might be affected.
The malfunction indicator lamp could turn on and the
vehicle might fail a smog-check test. SeeMalfunction
Indicator Lamp on page 4-28. If this occurs, return to your
authorized dealer/retailer for diagnosis. If it is determined
that the condition is caused by the type of fuel used,
repairs might not be covered by the vehicle warranty.
Additives
To provide cleaner air, all gasolines in the United States
are now required to contain additives that help prevent
engine and fuel system deposits from forming, allowing
the emission control system to work properly. In most
cases, you should not have to add anything to the fuel.
However, some gasolines contain only the minimum
amount of additive required to meet U.S. Environmental
Protection Agency regulations. To help keep fuel injectors
and intake valves clean, or if the vehicle experiences
problems due to dirty injectors or valves, look for gasoline
that is advertised as TOP TIER Detergent Gasoline.
For customers who do not use TOP TIER Detergent
Gasoline regularly, one bottle of GM Fuel System
Treatment PLUS, added to the fuel tank at every engine
oil change, can help clean deposits from fuel injectors
and intake valves. GM Fuel System Treatment PLUS
is the only gasoline additive recommended by General
Motors.
6-6

Filling the Tank
{WARNING:
Fuel vapor burns violently and a fuel fire can
cause bad injuries. To help avoid injuries to you
and others, read and follow all the instructions on
the fuel pump island. Turn off the engine when
refueling. Do not smoke near fuel or when
refueling the vehicle. Do not use cellular phones.
Keep sparks, flames, and smoking materials away
from fuel. Do not leave the fuel pump unattended
when refueling the vehicle. This is against the law
in some places. Do not re-enter the vehicle while
pumping fuel. Keep children away from the fuel
pump; never let children pump fuel.The tethered fuel cap is located behind a hinged fuel
door on the driver side of the vehicle.
To remove the fuel cap, turn it slowly counterclockwise.
While refueling, hang the tethered fuel cap from the
hook on the fuel door.
6-8