2007 GMC CANYON engine

4WD Regular Cab Axle Ratio Maximum Trailer Weight GCWR*
Automatic Transmission, 2.9L Engine 3.73 3,000 lbs (1 361 kg) 7,000 lbs (3 175 kg)
Automatic Transmission, 2.9L Engine 4.10 3,000 lbs (1 361 kg) 7,000 lbs (3 175 kg)
Automatic Transmission, 3.7L Engine 3.73 4,000 lbs (1 814 kg) 9,000 lbs (4 082 kg)
Manual Transmission, 2.9L Engine 3.73 2,000 lbs (907 kg) 6,000 lbs (2 722 kg)
Manual Transmission, 2.9L Engine 4.10 2,000 lbs (907 kg) 6,000 lbs (2 722 kg)
4WD Extended Cab Axle Ratio Maximum Trailer Weight GCWR*
Automatic Transmission, 2.9L Engine 3.73 2,900 lbs (1 315 kg) 7,000 lbs (3 175 kg)
Automatic Transmission, 2.9L Engine 4.10 2,900 lbs (1 315 kg) 7,000 lbs (3 175 kg)
Automatic Transmission, 3.7L Engine 3.73 4,000 lbs (1 814 kg) 9,000 lbs (4 082 kg)
Manual Transmission, 2.9L Engine 3.73 1,900 lbs (861 kg) 6,000 lbs (2 722 kg)
Manual Transmission, 2.9L Engine 4.10 1,900 lbs (861 kg) 6,000 lbs (2 722 kg)
4WD Crew Cab Axle Ratio Maximum Trailer Weight GCWR*
Automatic Transmission, 3.7L Engine 3.73 4,000 lbs (1 814 kg) 9,000 lbs (4 082 kg)
*The Gross Combination Weight Rating (GCWR) is the total allowable weight of the completely loaded
vehicle and trailer including any passengers, cargo, equipment and conversions. The GCWR for your
vehicle should not be exceeded.
303

Backing Up
Hold the bottom of the steering wheel with
one hand. Then, to move the trailer to the left, just
move that hand to the left. To move the trailer to the
right, move your hand to the right. Always back up
slowly and, if possible, have someone guide you.
Making Turns
Notice:Making very sharp turns while
trailering could cause the trailer to come in
contact with the vehicle. Your vehicle could
be damaged. Avoid making very sharp
turns while trailering.
When you’re turning with a trailer, make wider
turns than normal. Do this so your trailer
won’t strike soft shoulders, curbs, road signs,
trees or other objects. Avoid jerky or sudden
maneuvers. Signal well in advance.
Turn Signals When Towing a Trailer
When you tow a trailer, your vehicle has to have
extra wiring and a heavy-duty turn signal asher.
The arrows on your instrument panel will ash
whenever you signal a turn or lane change.
Properly hooked up, the trailer lamps will also
ash, telling other drivers you’re about to
turn, change lanes or stop.When towing a trailer, the arrows on your
instrument panel will ash for turns even if the bulbs
on the trailer are burned out. Thus, you may think
drivers behind you are seeing your signal when
they are not. It’s important to check occasionally to
be sure the trailer bulbs are still working.
Driving On Grades
Reduce speed and shift to a lower gear before
you start down a long or steep downgrade. If you
don’t shift down, you might have to use your
brakes so much that they would get hot and no
longer work well.
When towing at high altitude on steep uphill
grades, consider the following: Engine coolant
will boil at a lower temperature than at normal
altitudes. If you turn your engine off immediately
after towing at high altitude on steep uphill grades,
your vehicle may show signs similar to engine
overheating. To avoid this, let the engine run while
parked (preferably on level ground) with the
automatic transmission in PARK (P) (or the manual
transmission out of gear and the parking brake
applied) for a few minutes before turning the
engine off. If you do get the overheat warning,
seeEngine Overheating on page 340.
309

Parking on Hills
{CAUTION:
You really should not park your
vehicle, with a trailer attached, on a hill.
If something goes wrong, your rig could
start to move. People can be injured,
and both your vehicle and the trailer can
be damaged.
But if you ever have to park your rig on a hill,
here’s how to do it:
1. Apply your regular brakes, but don’t shift into
PARK (P) yet, or into gear for a manual
transmission. When parking uphill, turn your
wheels away from the curb. When parking
downhill, turn your wheels into the curb.
2. Have someone place chocks under the trailer
wheels.
3. When the wheel chocks are in place, release
the regular brakes until the chocks absorb
the load.4. Reapply the regular brakes. Then apply your
parking brake, and then shift into PARK (P),
or REVERSE (R) for a manual transmission.
SeeParking Brake on page 130for more
information.
5. If you have a four-wheel-drive vehicle, be sure
the transfer case is in a drive gear and not in
NEUTRAL. SeeFour-Wheel Drive on page 126
for more information.
6. Release the regular brakes.
When You Are Ready to Leave After
Parking on a Hill
1. Apply your regular brakes and hold the pedal
down while you:
start your engine,
shift into a gear, and
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.
310

Maintenance When Trailer Towing
Your vehicle will need service more often
when you’re pulling a trailer. SeeScheduled
Maintenance on page 437for more on this. Things
that are especially important in trailer operation
are automatic transmission uid (don’t overll),
engine oil, axle lubricant, belt, cooling system and
brake system. Each of these is covered in this
manual, and the Index will help you nd them
quickly. If you’re trailering, it’s a good idea
to review these sections before you start your trip.
Check periodically to see that all hitch nuts and
bolts are tight.
Trailer Wiring Harness
Your 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
You must subtract your hitch load from the
CWR for your vehicle. Weigh your vehicle with
your trailer attached, so that you won’t go over
the GVWR or the GAWR.
You’ll get the best performance if you spread out
the weight of your load the right way, and if
you choose the correct hitch and trailer brakes.
For more information, seeTowing a Trailer
on page 300later in this section.
311

Service........................................................ 316
Accessories and Modications................... 316
California Proposition 65 Warning.............. 317
Doing Your Own Service Work.................. 317
Adding Equipment to the Outside of
Your Vehicle.......................................... 318
Fuel............................................................. 318
Gasoline Octane........................................ 318
Gasoline Specications.............................. 318
California Fuel........................................... 318
Additives................................................... 319
Fuels in Foreign Countries........................ 320
Filling the Tank......................................... 320
Filling a Portable Fuel Container............... 322
Checking Things Under the Hood.............. 323
Hood Release........................................... 323
Engine Compartment Overview.................. 324
Engine Oil................................................. 325Engine Oil Life System.............................. 328
Engine Air Cleaner/Filter............................ 330
Automatic Transmission Fluid.................... 331
Manual Transmission Fluid........................ 334
Hydraulic Clutch........................................ 336
Engine Coolant.......................................... 337
Radiator Pressure Cap.............................. 340
Engine Overheating................................... 340
Cooling System......................................... 342
Engine Fan Noise..................................... 347
Power Steering Fluid ................................. 348
Windshield Washer Fluid........................... 349
Brakes...................................................... 350
Battery...................................................... 353
Jump Starting............................................ 354
Rear Axle.................................................... 359
Four-Wheel Drive........................................ 359
Front Axle................................................... 360
Section 5 Service and Appearance Care
313

Sheet Metal Damage................................. 422
Finish Damage.......................................... 422
Underbody Maintenance............................ 423
Chemical Paint Spotting............................ 423
Vehicle Care/Appearance Materials............ 423
Vehicle Identication.................................. 424
Vehicle Identication Number (VIN)........... 424
Service Parts Identication Label............... 425Electrical System........................................ 425
Add-On Electrical Equipment..................... 425
Windshield Wiper Fuses............................ 425
Fuses and Circuit Breakers....................... 426
Engine Compartment Fuse Block............... 426
Capacities and Specications.................... 430
Section 5 Service and Appearance Care
315

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 (including some inside the vehicle), many
uids, and some component wear by-products
contain and/or emit these chemicals.
Doing Your Own Service Work
{CAUTION:
You can be injured and your 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 you attempt any
vehicle maintenance task.
CAUTION: (Continued)
CAUTION: (Continued)

Be sure to use the proper nuts, bolts,
and other fasteners. English and metric
fasteners can be easily confused. If you
use the wrong fasteners, parts can later
break or fall off. You could be hurt.
If you want to do some of your own service work,
you will want to use the proper service manual.
It tells you much more about how to service your
vehicle than this manual can. To order the
proper service manual, seeService Publications
Ordering Information on page 475.
Your vehicle has an airbag system. Before
attempting to do your own service work, see
Servicing Your Airbag-Equipped Vehicle on
page 92.
You should keep a record with all parts receipts
and list the mileage and the date of any service
work you perform. SeeMaintenance Record
on page 451.
317

Adding Equipment to the Outside
of Your Vehicle
Things you might add to the outside of your
vehicle can affect the airow around it. This may
cause wind noise and affect windshield washer
performance. Check with your dealer before
adding equipment to the outside of your vehicle.
Fuel
Use of the recommended fuel is an important
part of the proper maintenance of your vehicle.
To help keep your engine clean and maintain
optimum vehicle performance, GM recommends
the use of gasoline advertised as TOP TIER
Detergent Gasoline.
Gasoline Octane
Use regular unleaded gasoline with a posted
octane rating of 87 or higher. If the octane rating is
less than 87, you may 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, your engine
needs service.
Gasoline Specications
At a minimum, gasoline should meet ASTM
specication D 4814 in the United States or
CAN/CGSB-3.5 in Canada. Some gasolines may
contain an octane-enhancing additive called
methylcyclopentadienyl manganese tricarbonyl
(MMT). General Motors recommends against the
use of gasolines containing MMT. SeeAdditives
on page 319for additional information.
California Fuel
If your vehicle is certied to meet California
Emissions Standards, it is designed to operate on
fuels that meet California specications. See the
underhood emission control label. If this fuel is not
available in states adopting California emissions
standards, your vehicle will operate satisfactorily on
fuels meeting federal specications, but emission
control system performance may be affected. The
malfunction indicator lamp may turn on and your
vehicle may fail a smog-check test. SeeMalfunction
Indicator Lamp on page 188. If this occurs, return to
your authorized GM dealer for diagnosis. If it is
determined that the condition is caused by the type
of fuel used, repairs may not be covered by your
warranty.
318