2023 GMC CANYON ECU

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16510661) - 2023 - CRC - 11/29/22
6 Keys, Doors, and Windows
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Remote Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Remote Key Operation . . . . . . . . . . . . . . . . . . . 7
Remote Vehicle Start . . . . . . . . . . . . . . . . . . . 12
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Power Door Locks . . . . . . . . . . . . . . . . . . . . . . . 14
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 14
Automatic Door Locks . . . . . . . . . . . . . . . . . . . 15
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . 15
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Doors
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Transporting Items That CanCatch Fire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . . . . . . . . . 18
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 18
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Immobilizer Operation . . . . . . . . . . . . . . . . . . 19
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 19
Power Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 20
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 20
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . . . . . . . 20
Manual Rearview Mirror . . . . . . . . . . . . . . . . 20
Automatic Dimming Rearview Mirror . . . 20
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Power Windows . . . . . . . . . . . . . . . . . . . . . . . . 21
Rear Windows . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Keys and Locks
Keys
{Warning
Leaving children in a vehicle with a
remote key is dangerous and children or
others could be seriously injured or killed.
They could operate the power windows
or other controls or make the vehicle
move. The windows will function with
the remote key in the vehicle, and
children or others could be caught in the
path of a closing window. Do not leave
children in a vehicle with a remote key.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16510661) - 2023 - CRC - 11/29/22
16 Keys, Doors, and Windows
To open a rear door when the safety lock
is on:1. Unlock the door by activating the inside handle, by pressing the power door
unlock switch, or by using the
remote key.
2. Open the door from the outside.
When the safety lock is enabled, adults and
older children will not be able to open the
rear door from the inside. Cancel the safety
locks to enable the doors to open from the
inside.
To cancel the safety lock: 1. Unlock the door and open it from the outside.
2. Move the lever up to unlock. Do the same for the other door.Doors
Tailgate
{Warning
It is extremely dangerous to ride on the
tailgate, even when the vehicle is
operated at low speeds. People riding on
the tailgate can easily lose their balance
and fall in response to vehicle maneuvers.
Falling from a moving vehicle may result
in serious injuries or death. Do not allow
people to ride on the tailgate. Be sure
everyone in your vehicle is in a seat and
using a seat belt properly.
Use the remote key to lock and unlock the
tailgate. If your tailgate handle has a key
cylinder, you can use the mechanical key to
lock it as well. See Remote Key Operation
0 7.
Open the tailgate by lifting up on its handle
while pulling the tailgate down.
To shut the tailgate, firmly push it upward
until it latches.
After closing the tailgate, pull it back to be
sure it latches securely.
Tailgate Mid-Position
The mid-position of the tailgate is used to
carry sheets of plywood or other similar
types of cargo.
To open the tailgate to the mid-position: 1. Lift up on the handle to unlatch the tailgate.
2. Partially lower the tailgate enough to access the brackets on either side of the
tailgate.
3. Hook the cables into each bracket.
4. Let the tailgate rest on the cables and slowly lower it as far as it will go.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16510661) - 2023 - CRC - 11/29/22
Keys, Doors, and Windows 17
Supporting Mid-Position Cargo
{Warning
Failure to properly support the load while
using the tailgate mid-position could
cause the tailgate to fail. Always use
additional support as described in this
section.
Two 5 cm (2 in) x 20 cm (8 in) boards must
be cut to fit snugly into the slots on either
side of the truck bed.
The board closest to the cab should be cut
to an approximate length of 117 cm (46 in).
The board closest to the tailgate should be
cut to an approximate length of
150 cm (59 in).
Cut the bottom corners off of each board so
that they will fit into the slots.
Make sure that the boards are correctly
inserted and secured before loading cargo.
Transporting Items That Can
Catch Fire
{Warning
To avoid personal injury and/or vehicle
damage when transporting items that
can catch fire, such as leaves, mulch, hay,
or cardboard, in the truck bed:
.Make sure items are securely
contained inside the truck bed. Never
allow them to hang over the sides or
fall in between the truck bed and
the cab.
.Never place items between the cab
and the truck bed. They could touch
hot exhaust parts and ignite.
{Warning
Keep cigarettes, sparks, and other ignition
sources away from the area between the
bed of the truck and cab. They could fall
onto the fuel system below and start a
fire. You or others could be injured
and/or the vehicle damaged.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16510661) - 2023 - CRC - 11/29/22
18 Keys, Doors, and Windows
Vehicle Security
This vehicle has theft-deterrent features;
however, they do not make the vehicle
impossible to steal.
Vehicle Alarm System
If equipped with the anti-theft alarm
system, the indicator light on the
instrument panel near the windshield,
indicates the status of the system.
Off :Alarm system is disarmed.
On Solid : Vehicle is secured during the
delay to arm the system.
Fast Flash : Vehicle is unsecured. A door or
the hood is open. Slow Flash :
Alarm system is armed.
Arming the Alarm System
1. Turn off the vehicle.
2. Lock the vehicle with one of the
following:
.PressQon the remote key.
.With a door open, pressQon the
interior of the door.
3. After 30 seconds the alarm system will arm, and the indicator light will begin to
slowly flash indicating the alarm system
is operating. Pressing
Qon the remote
key a second time will bypass the
30-second delay and immediately arm
the alarm system.
The theft-deterrent alarm system will not
arm if the doors are locked with the
mechanical key.
If the driver door is opened without first
unlocking with the remote key, the horn will
chirp and the lights will flash to indicate
pre-alarm. If the vehicle is not started,
or the door is not unlocked by pressing
K
on the remote key during the 10-second
pre-alarm, the alarm will be activated. If a door or the hood is opened without first
disarming the system, the turn signals will
flash and the horn will sound for about
30 seconds. The alarm system will then
re-arm to monitor for the next unauthorized
event.
Disarming the Alarm System
To disarm the alarm system or turn off the
alarm if it has been activated:
.PressKon the remote key.
.Start the vehicle.
To avoid setting off the alarm by accident:
.Lock the vehicle after all occupants have
left the vehicle and all doors are closed.
.Always unlock a door with the
remote key.
Unlocking the driver door with the
mechanical key will not disarm the system
or turn off the alarm.
Detecting a Tamper Condition
IfKis pressed on the remote key and the
horn chirps three times, an alarm occurred
previously while the alarm system was
armed.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16510661) - 2023 - CRC - 11/29/22
Keys, Doors, and Windows 19
Immobilizer
SeeRadio Frequency Statement 0346.
Immobilizer Operation
This vehicle has a passive theft-deterrent
system.
The system does not have to be manually
armed or disarmed.
The vehicle is automatically immobilized
when the vehicle is turned off.
The system is automatically disarmed when
the ignition is turned from off to on.
The security light, in the instrument cluster,
comes on if there is a problem with arming
or disarming the theft-deterrent system.
When trying to start the vehicle, the
security light comes on briefly when the
ignition is turned on. If the engine does not start and the security
light stays on, there is a problem with the
system. Turn the ignition off and try again.
It is possible for the immobilizer system to
learn new or replacement keys. Up to eight
keys can be programmed for the vehicle. To
program additional remote keys, see
Remote
Key Operation 07.
Do not leave the remote key or device that
disarms or deactivates the vehicle
theft-deterrent system in the vehicle.
Exterior Mirrors
Convex Mirrors
{Warning
A convex mirror can make things, like
other vehicles, look farther away than
they really are. If you cut too sharply
into the right lane, you could hit a
vehicle on the right. Check the inside
mirror or glance over your shoulder
before changing lanes.
The passenger side mirror is convex shaped.
A convex mirror surface is curved so more
can be seen from the driver seat.
Power Mirrors
If equipped, adjust the power mirrors: 1. Press
}or|to select the driver or
passenger side mirror. The indicator light
comes on.
2. Press the arrows on the control pad to move the mirror up, down, right, or left.
3. Adjust the outside mirror so that the side of the vehicle and the area behind
are seen.
4. Press either
}or|again to deselect
the mirror. The indicator light goes off.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16510661) - 2023 - CRC - 11/29/22
24 Seats and Restraints
Seats and Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . 24
Front Seats
Seat Adjustment . . . . . . . . . . . . . . . . . . . . . . . . 25
Power Seat Adjustment . . . . . . . . . . . . . . . . 26
Reclining Seatbacks . . . . . . . . . . . . . . . . . . . . . 27
Lumbar Adjustment . . . . . . . . . . . . . . . . . . . . 28
Memory Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Heated and Ventilated Front Seats . . . . . . 31
Rear Seats
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Seat Belts
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Buckle To Drive . . . . . . . . . . . . . . . . . . . . . . . . . 34
How to Wear Seat Belts Properly . . . . . . 34
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . 36
Seat Belt Use During Pregnancy . . . . . . . . 39
Seat Belt Extender . . . . . . . . . . . . . . . . . . . . . . 39
Safety System Check . . . . . . . . . . . . . . . . . . . 40
Seat Belt Care . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Replacing Seat Belt System Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Airbag System
Airbag System . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Where Are the Airbags? . . . . . . . . . . . . . . . . 42
When Should an Airbag Inflate? . . . . . . . . 43
What Makes an Airbag Inflate? . . . . . . . . 44
How Does an Airbag Restrain? . . . . . . . . . 44
What Will You See after an AirbagInflates? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Passenger Sensing System . . . . . . . . . . . . . . 45
Servicing the Airbag-Equipped Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Adding Equipment to the Airbag-Equipped Vehicle . . . . . . . . . . . . . . 49
Airbag System Check . . . . . . . . . . . . . . . . . . . 50
Replacing Airbag System Parts after a Crash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Child Restraints
Older Children . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Infants and Young Children . . . . . . . . . . . . . 52
Child Restraint Systems . . . . . . . . . . . . . . . . 54
Where to Put the Restraint . . . . . . . . . . . . . 56
Lower Anchors and Tethers for Children(LATCH System) . . . . . . . . . . . . . . . . . . . . . . . 57
Replacing LATCH System Parts After a Crash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Securing Child Restraints (With the Seat Belt in the Rear Seat) . . . . . . . . . . . . . . . . . 65
Securing Child Restraints (With the Seat Belt in the Front Seat) . . . . . . . . . . . . . . . . 67
Head Restraints
{
Warning
With head restraints that are not
installed and adjusted properly, there is a
greater chance that occupants will suffer
a neck/spinal injury in a crash. Do not
drive until the head restraints for all
occupants are installed and adjusted
properly.
Adjust the head restraint so that the top of
the restraint is at the same height as the
top of the occupant's head. This position
reduces the chance of a neck injury in a
crash.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16510661) - 2023 - CRC - 11/29/22
Seats and Restraints 37
2. Pick up the latch plate and pull the beltacross you. Do not let it get twisted.
The lap-shoulder belt may lock if you
pull the belt across you very quickly.
If this happens, let the belt go back
slightly to unlock it. Then pull the belt
across you more slowly.
If the shoulder portion of a passenger
belt is pulled out all the way, the child
restraint locking feature may be
engaged. See Child Restraint Systems
0 54. If this occurs, let the belt go back
all the way and start again. If the
locking feature stays engaged after
letting the belt go back to stowed position on the seat, move the seat
rearward or recline the seat until the
shoulder belt retractor lock releases.
If the webbing locks in the latch plate
before it reaches the buckle, tilt the latch
plate flat to unlock.
3. Push the latch plate into the buckle until
it clicks.
Pull up on the latch plate to make sure
it is secure. If the belt is not long
enough, see Seat Belt Extender 039.
Position the release button on the buckle
so that the seat belt could be quickly
unbuckled if necessary.
4. If equipped with a shoulder belt height adjuster, move it to the height that is
right for you. See “Shoulder Belt Height
Adjuster” later in this section for
instructions on use and important safety
information.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16510661) - 2023 - CRC - 11/29/22
40 Seats and Restraints
But if a seat belt is not long enough, your
dealer will order you an extender. Only a
GM dealer issued extender should be used.
When you go in to order it, take the
heaviest coat you will wear, so the extender
will be long enough for you. To help avoid
personal injury, do not let someone else use
it, and use it only for the seat it is made to
fit. The extender has been designed for
adults. Never use it for securing child
restraints. For more information on the
proper use and fit of seat belt extenders see
the instruction sheet that comes with the
extender.
Safety System Check
Periodically check the seat belt reminder,
seat belts, buckles, latch plates, retractors,
shoulder belt height adjusters (if equipped),
and seat belt anchorages to make sure they
are all in working order. Look for any other
loose or damaged seat belt system parts
that might keep a seat belt system from
performing properly. See your dealer to
have it repaired. Torn, frayed, or twisted
seat belts may not protect you in a crash.
Torn or frayed seat belts can rip apart under
impact forces. If a belt is torn or frayed,
have it replaced immediately. If a belt is
twisted, it may be possible to untwist byreversing the latch plate on the webbing.
If the twist cannot be corrected, ask your
dealer to fix it.
Make sure the seat belt reminder light is
working. See
Seat Belt Reminders 087.
Keep seat belts clean and dry. See Seat Belt
Care 040.
Seat Belt Care
Keep belts clean and dry.
Seat belts should be properly cared for and
maintained.
Seat belt hardware should be kept dry and
free of dust or debris. As necessary, exterior
hard surfaces and seat belt webbing may be
lightly cleaned with mild soap and water.
Ensure there is not excessive dust or debris
in the mechanism. If dust or debris exists in
the system please see the dealer. Parts may
need to be replaced to ensure proper
functionality of the system.
{Warning
Do not bleach or dye seat belt webbing.
It may severely weaken the webbing. In
a crash, they might not be able to
(Continued)
Warning (Continued)
provide adequate protection. Clean and
rinse seat belt webbing only with mild
soap and lukewarm water. Allow the
webbing to dry.
Replacing Seat Belt System Parts
after a Crash
{Warning
A crash can damage the seat belt system
in the vehicle. A damaged seat belt
system may not properly protect the
person using it, resulting in serious injury
or even death in a crash. To help make
sure the seat belt systems are working
properly after a crash, have them
inspected and any necessary
replacements made as soon as possible.
After a minor crash, replacement of seat
belts may not be necessary. But the seat
belt assemblies that were used during any
crash may have been stressed or damaged.
See your dealer to have the seat belt
assemblies inspected or replaced.