2007 GMC CANYON octane

Did you just drive through a deep puddle of water?
If so, your electrical system may be wet. The
condition will usually be corrected when the
electrical system dries out. A few driving trips
should turn the light off.
Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel.
SeeGasoline Octane on page 318. Poor fuel
quality will cause your engine not to run as
efficiently as designed. You may notice this as
stalling after start-up, stalling when you put
the vehicle into gear, misring, hesitation on
acceleration, or stumbling on acceleration. (These
conditions may go away once the engine is
warmed up.) This will be detected by the system
and cause the light to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at
least one full tank of the proper fuel to turn the
light off.
If none of the above steps have made the light
turn off, your dealer can check the vehicle.
Your dealer has the proper test equipment and
diagnostic tools to x any mechanical or electrical
problems that may have developed.Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have
or may begin programs to inspect the emission
control equipment on your vehicle. Failure to pass
this inspection could prevent you from getting a
vehicle registration.
Here are some things you need to know to help
your vehicle pass an inspection:
Your vehicle will not pass this inspection if the
check engine light is on or not working properly.
Your vehicle will not pass this inspection if
the OBD (on-board diagnostic) system determines
that critical emission control systems have not
been completely diagnosed by the system.
The vehicle would be considered not ready for
inspection. This can happen if you have recently
replaced your battery or if your battery has
run down. The diagnostic system is designed to
evaluate critical emission control systems
during normal driving. This may take several days
of routine driving. If you have done this and
your vehicle still does not pass the inspection for
lack of OBD system readiness, your dealer
can prepare the vehicle for inspection.
190

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

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

Additives
To provide cleaner air, all gasolines in the United
States are now required to contain additives
that will help prevent engine and fuel system
deposits from forming, allowing your emission
control system to work properly. In most cases,
you should not have to add anything to your 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 your vehicle experiences problems due to
dirty injectors or valves, look for gasoline that is
advertised as TOP TIER Detergent Gasoline. Also,
your dealer has additives that will help correct
and prevent most deposit-related problems.
Gasolines containing oxygenates, such as ethers
and ethanol, and reformulated gasolines may
be available in your area. General Motors
recommends that you use these gasolines if they
comply with the specications described earlier.
However, E85 (85% ethanol) and other fuels
containing more than 10% ethanol must not be
used in vehicles that were not designed for
those fuels.Notice:Your vehicle was not designed for
fuel that contains methanol. Do not use
fuel containing methanol. It can corrode metal
parts in your fuel system and also damage
the plastic and rubber parts. That damage
would not be covered under your warranty.
Some gasolines that are not reformulated for low
emissions may contain an octane-enhancing
additive called methylcyclopentadienyl manganese
tricarbonyl (MMT); ask the attendant where you
buy gasoline whether the fuel contains MMT.
General Motors recommends against the use of
such gasolines. Fuels containing MMT can reduce
the life of spark plugs and the performance of
the emission control system may be affected. The
malfunction indicator lamp may turn on. If this
occurs, return to your dealer for service.
319

Using the Maintenance Schedule
We at General Motors want to help you keep your
vehicle in good working condition. But we do
not know exactly how you will drive it. You may
drive very short distances only a few times a week.
Or you may drive long distances all the time in
very hot, dusty weather. You may use your vehicle
in making deliveries. Or you may drive it to
work, to do errands, or in many other ways.
Because of all the different ways people use their
vehicles, maintenance needs vary. You may need
more frequent checks and replacements. So please
read the following and note how you drive. If you
have any questions on how to keep your vehicle in
good condition, see your GM Goodwrench
®dealer.This schedule is for vehicles that:
carry passengers and cargo within
recommended limits. You will nd these limits
on the Tire and Loading Information label.
SeeLoading Your Vehicle on page 286.
are driven on reasonable road surfaces within
legal driving limits.
are driven off-road in the recommended
manner. SeeOff-Road Driving on page 256.
use the recommended fuel. SeeGasoline
Octane on page 318.
435

Engine (cont.)
Check and Service Engine Soon Light..... 188
Coolant.................................................... 337
Coolant Heater......................................... 119
Coolant Temperature Gage...................... 187
Drive Belt Routing.................................... 450
Engine Compartment Overview................ 324
Exhaust................................................... 136
Fan Noise................................................ 347
Oil ........................................................... 325
Oil Life System........................................ 328
Overheating............................................. 340
Starting.................................................... 118
Event Data Recorders (EDR)...................... 468
Exit Lighting................................................ 171
Extender, Safety Belt..................................... 42
Exterior Cargo Lamps................................. 169
Exterior Lamps............................................ 166
F
Filter
Engine Air Cleaner................................... 330
Finish Damage............................................ 422
Fixed Mast Antenna.................................... 239Flashers, Hazard Warning........................... 158
Flash-to-Pass.............................................. 161
Flat Tire...................................................... 393
Flat Tire, Changing...................................... 394
Flat Tire, Storing......................................... 410
Fluid
Automatic Transmission............................ 331
Manual Transmission................................ 334
Power Steering........................................ 348
Windshield Washer.................................. 349
Fog Lamps.................................................. 169
Four-Wheel Drive...............................126, 359
Front Armrest Storage Area ......................... 150
Front Axle................................................... 360
Front Turn Signal, Parking and Daytime
Running Lamps........................................ 363
Fuel............................................................ 318
Additives.................................................. 319
California Fuel.......................................... 318
Filling a Portable Fuel Container.............. 322
Filling Your Tank...................................... 320
Fuels in Foreign Countries....................... 320
Gage....................................................... 193
Gasoline Octane...................................... 318
Gasoline Specications............................ 318
482

Fuses
Engine Compartment Fuse Block............. 426
Fuses and Circuit Breakers...................... 426
Windshield Wiper..................................... 425
G
Gage
Engine Coolant Temperature.................... 187
Fuel......................................................... 193
Speedometer........................................... 179
Tachometer.............................................. 179
Gasoline
Octane..................................................... 318
Specications........................................... 318
Glove Box................................................... 150
GM Mobility Reimbursement Program.......... 461
H
Hazard Warning Flashers............................ 158
Head Restraints............................................ 15
Headlamps.................................................. 362
Automatic Headlamp System.................... 168
Bulb Replacement.................................... 361Headlamps (cont.)
Daytime Running Lamps.......................... 167
Flash-to-Pass........................................... 161
Halogen Bulbs......................................... 361
High/Low Beam Changer......................... 161
On Reminder........................................... 167
Heated Seats................................................ 11
Heater......................................................... 173
Highbeam On Light..................................... 192
Highway Hypnosis....................................... 277
Hill and Mountain Roads............................. 278
Hood
Checking Things Under............................ 323
Release................................................... 323
Horn............................................................ 158
How to Use This Manual ................................ 4
How to Wear Safety Belts Properly............... 25
Hydraulic Clutch.......................................... 336I
Ignition Positions......................................... 116
Infants and Young Children, Restraints .......... 46
Ination - Tire Pressure............................... 377
483