ECU GMC CANYON 2006 Service Manual

Security Light
This light will come on
briey when you turn the
key to START. The
light will stay on until the
engine starts.
If the ignition is turned on, and the light ashes, the
Passlock
®system has entered a tamper mode. If the
vehicle fails to start, seePasslock®on page 2-15.
If the light comes on continuously while driving and stays
on, there may be a problem with the Passlock
®
system. Your vehicle will not be protected by Passlock®,
and you should see your dealer.
Also, seeContent Theft-Deterrent on page 2-13for
additional information regarding the security light.
Cruise Control Light
This light comes on
whenever you set your
cruise control.
The light will go out when the cruise control is turned
off. SeeCruise Control on page 3-11for more
information.
Highbeam On Light
This light comes on
whenever the high-beam
headlamps are on.
SeeHeadlamp High/Low-Beam Changer on page 3-9
for more information.
3-37

ENG (Engine) HOT
This message will be displayed when your engine
coolant temperature is hot. Check your engine coolant
temperature gage. SeeEngine Coolant Temperature
Gage on page 3-32for more information. You should
have your vehicle serviced by your GM dealer as soon
as possible if you suspect your engine is overheating.
SeeEngine Overheating on page 5-28for more
information.
FLUID
This message will be displayed if your brake uid is low.
Check the brake uid as soon as possible and have
your vehicle serviced by your GM dealer. SeeBrakes on
page 5-37for more information. Press the reset stem
to acknowledge the message and clear it from the DIC
display.
FUEL CAP
This message will be displayed if your vehicle’s fuel cap
is either off or loose. You should pull over and check
to see if your vehicle’s fuel cap is secure as soon
as possible. You may also see the check engine light
on the instrument panel cluster. SeeMalfunction
Indicator Lamp on page 3-32for more information.
Press the reset stem to acknowledge the message and
clear it from the display.
LOW FUEL
This message will be displayed if the level of fuel in
your vehicle is low. You should also check your
fuel gage. SeeFuel Gage on page 3-38for more
information. You should ll your vehicle’s tank as soon
as possible.
LOW TRAC (Traction)
If you have the Traction Control System (TCS), you will
see this message when a low traction condition is
detected. SeeTraction Control System (TCS) on
page 4-9for more information. Press and release the
reset stem to acknowledge the message and clear
it from the DIC display.
OIL
This message will be displayed when your oil pressure
is low. SeeOil Pressure Light on page 3-36and
Engine Oil on page 5-13for more information.
3-44

XM™ Radio Messages (cont’d)
Radio Display
MessageCondition Action Required
No Info Category Name not
availableNo category information is available at this time on this
channel. The system is working properly.
No Info No Text/Informational
message availableNo text or informational messages are available at this
time on this channel. The system is working properly.
Not Found No channel available for
the chosen categoryThere are no channels available for the selected category.
The system is working properly.
XM Lock Theft lock active The XM™ receiver in your vehicle may have previously
been in another vehicle. For security purposes, XM™
receivers cannot be swapped between vehicles. If this
message is received after having your vehicle serviced,
check with your GM dealer.
Radio ID Radio ID label
(channel 0)If tuned to channel 0, this message will alternate with the
XM™ Radio eight digit radio ID label. This label is needed
to activate the service.
Unknown Radio ID not known
(should only be if
hardware failure)If this message is received when tuned to channel 0, there
may be a receiver fault. Consult with your GM dealer.
Check XM Hardware failure If this message does not clear within a short period of time,
the receiver may have a fault. Consult with your GM
dealer.
3-58

Loading Your Vehicle for Off-Road
Driving
There are some important things to remember about
how to load your vehicle.
The heaviest things should be on the load oor and
forward of the rear axle. Put heavier items as far
forward as you can.
Be sure the load is secured properly, so driving on
the off-road terrain does not toss things around.
{CAUTION:
Cargo on the load oor piled higher than
the seatbacks can be thrown forward
during a sudden stop. You or your
passengers could be injured. Keep cargo
below the top of the seatbacks.
Unsecured cargo on the load oor can be
tossed about when driving over rough
terrain. You or your passengers can be
struck by ying objects. Secure the cargo
properly.
Heavy loads on the roof raise the vehicle’s
center of gravity, making it more likely to
roll over. You can be seriously or fatally
injured if the vehicle rolls over. Put heavy
loads inside the cargo area, not on the
roof. Keep cargo in the cargo area as far
forward and low as possible.
You will nd other important information in this manual.
SeeLoading Your Vehicle on page 4-44andTires
on page 5-55.
4-16

Winter Driving
Here are some tips for winter driving:
Have your vehicle in good shape for winter.
You may want to put winter emergency supplies in
your vehicle.
Also seeTires on page 5-55.Include an ice scraper, a small brush or broom, a
supply of windshield washer uid, a rag, some winter
outer clothing, a small shovel, a ashlight, a red
cloth, and a couple of reective warning triangles. And,
if you will be driving under severe conditions, include
a small bag of sand, a piece of old carpet, or a couple of
burlap bags to help provide traction. Be sure you
properly secure these items in your vehicle.
Driving on Snow or Ice
Most of the time, those places where the tires meet the
road probably have good traction.
However, if there is snow or ice between the tires and
the road, you can have a very slippery situation. You will
have a lot less traction, or grip, and will need to be
very careful.
4-38

Never exceed the GVWR for your vehicle, or the GAWR
for either the front or rear axle.
If you do have a heavy load, you should spread it out.
Similar appearing vehicles may have different GVWRs
and capacity weights. Please note your vehicle’s
Certication/Tire label or consult your dealer for
additional details.
{CAUTION:
Do not load your vehicle any heavier than the
Gross Vehicle Weight Rating (GVWR), or either
the maximum front or rear Gross Axle Weight
Rating (GAWR). If you do, parts on your
vehicle can break, and it can change the way
your vehicle handles. These could cause you
to lose control and crash. Also, overloading
can shorten the life of your vehicle.
Using heavier suspension components to get added
durability might not change your weight ratings. Ask your
dealer to help you load your vehicle the right way.
Notice:Overloading your vehicle may cause
damage. Repairs would not be covered by your
warranty. Do not overload your vehicle.If you put things inside your vehicle — like suitcases,
tools, packages, or anything else — they will go as fast
as the vehicle goes. If you have to stop or turn
quickly, or if there is a crash, they will keep going.
{CAUTION:
Things you put inside your vehicle can strike
and injure people in a sudden stop or turn, or
in a crash.
Put things in the cargo area of your
vehicle. Try to spread the weight evenly.
Never stack heavier things, like suitcases,
inside the vehicle so that some of them
are above the tops of the seats.
Do not leave an unsecured child restraint
in your vehicle.
When you carry something inside the
vehicle, secure it whenever you can.
Do not leave a seat folded down unless
you need to.
4-48

There is also important loading information for off-road
driving in this manual. See“Loading Your Vehicle
for Off-Road Driving”underOff-Road Driving on
page 4-15.
Remember not to exceed the Gross Axle Weight rating
(GAWR) of the front or rear axle.
Two-Tiered Loading
By positioning four 2” X 6” wooden planks across the
width of the pickup box, you can create an upper
load platform. The planks must be inserted in the pickup
box depressions. The length of the planks must allow
for at least a 3/4 inch (2 cm) bearing surface on
each end of the plank.
When using this upper load platform, be sure the load is
securely tied down to prevent it from shifting. The
load’s center of gravity should be positioned in a zone
over the rear axle.
Any load that extends beyond the vehicle’s taillamp
area must be properly marked according to local laws
and regulations.
Remember not to exceed the Gross Axle Weight Rating
(GAWR) of the rear axle.
Add-On Equipment
When you carry removable items, you may need to put a
limit on how many people you carry inside your vehicle.
Be sure to weigh your vehicle before you buy and install
the new equipment.
Notice:Overloading your vehicle may cause
damage. Repairs would not be covered by your
warranty. Do not overload your vehicle.
Remember not to exceed the Gross Axle Weight Rating
(GAWR) of the rear axle.
A reinforcement kit for mounting a toolbox is
recommended. See your dealer.
Truck-Camper Loading Information
Your vehicle was not designed to carry a slide-in camper.
Pickup Conversion to Chassis Cab
General Motors is aware that some vehicle owners
may consider having the pickup box removed and a
commercial or recreational body installed. However,
we recommend that conversions of this type not be
done to pickups. Owners should be aware that,
as manufactured, there are differences between a
chassis cab and a pickup with the box removed which
may affect vehicle safety. For specic information on
this pickup, contact GM Customer Assistance.
SeeCustomer Assistance Offices on page 7-4.
4-49

Four-Wheel Drive Vehicles
Use the following procedure to tow your vehicle with all
four wheels on the ground:
1. Drive the vehicle to be towed into position behind
the tow vehicle.
2. Firmly set the parking brake. SeeParking Brake on
page 2-28for more information.
3. Put an automatic transmission in PARK (P) or a
manual transmission in FIRST (1).
4. Securely attach the vehicle being towed to the tow
vehicle.
{CAUTION:
Shifting a four-wheel-drive vehicle’s transfer
case into NEUTRAL can cause your vehicle to
roll even if the transmission is in PARK (P) for
an automatic transmission, or if your vehicle is
in gear, for a manual transmission. You or
others could be injured. Make sure the parking
brake is rmly set before you shift the transfer
case to NEUTRAL.
5. Shift the transfer case to NEUTRAL. See
Four-Wheel Drive on page 2-24for more
information.
6. Release the parking brake only after the vehicle
being towed is rmly attached to the tow vehicle.
7. Turn the ignition to LOCK.
If the tow vehicle will not be started or driven for
six weeks or more, remove the battery cable
from the negative terminal (post) of the battery to
prevent your battery from draining while towing.
After towing see “Shifting Out of NEUTRAL” under
Four-Wheel Drive on page 2-24.
4-51

Dolly Towing
Front Towing (Front Wheels Off the
Ground)
Two-Wheel-Drive Vehicles
Notice:If you tow a two-wheel-drive vehicle with
the rear wheels on the ground, the transmission
could be damaged. The repairs would not be
covered by your warranty. Never tow your vehicle
with the rear wheels on the ground.
Two-wheel-drive vehicles should not be towed with the
rear wheels on the ground. Two-wheel-drive
transmissions have no provisions for internal lubrication
while being towed. To dolly tow a two-wheel-drive
vehicle, you must tow the vehicle with the rear wheels
on the dolly. See “Rear Towing (Rear Wheels Off
the Ground)” later in this section for more information.
Four-Wheel-Drive Vehicles
Use the following procedure to dolly tow your vehicle
from the front:
1. Drive the vehicle onto the dolly.
2. Firmly set the parking brake. SeeParking Brake on
page 2-28for more information.
3. Put an automatic transmission in PARK (P) or a
manual transmission in FIRST (1).
4. Follow the dolly manufacturer’s instructions to
attach and secure the vehicle being towed to
the dolly and then the loaded dolly to the tow
vehicle.
4-52

4. Follow the dolly manufacturer’s instructions to
attach and secure the vehicle being towed to
the dolly and then the loaded dolly to the tow
vehicle. Make sure the wheels are straight before
towing.
For manual transmission vehicles, make sure the
wheels are straight before proceeding to the
next steps. On automatic transmission vehicles, use
an adequate clamping device to ensure that the
front wheels are locked into the straight position.
5. Release the parking brake only after the vehicle
being towed is rmly attached to the tow vehicle.
6. Turn the ignition to LOCK.
If the tow vehicle will not be started or driven for
six weeks or more, remove the battery cable
from the negative terminal (post) of the battery to
prevent your battery from draining while towing.Four-Wheel-Drive Vehicles
Use the following procedure to tow your vehicle from
the rear:
1. Drive the vehicle onto the dolly.
2. Firmly set the parking brake. SeeParking Brake on
page 2-28for more information.
3. Put an automatic transmission in PARK (P) or a
manual transmission in FIRST (1).
4-54