lock GMC CANYON 2023 Repair Manual

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16510661) - 2023 - CRC - 11/29/22
Driving and Operating 175
Automatic Transmission
If equipped, there is an electronic shift lever
position indicator within the instrument
cluster. This display comes on when the
vehicle is on or in accessory mode.
P :This position locks the drive wheels. Use
P (Park) when starting the engine because
the vehicle cannot move easily. When
parked on a hill, especially when the vehicle
has a heavy load, you might notice an
increase in the effort to shift out of P (Park).
See “Torque Lock” underShifting Into Park
0 172.
{Warning
It is dangerous to get out of the vehicle
if the shift lever is not fully in P (Park)
with the parking brake firmly set. The
vehicle can roll.
Do not leave the vehicle when the engine
is running. If you have left the engine
running, the vehicle can move suddenly.
You or others could be injured. To be
sure the vehicle will not move, even
when you are on fairly level ground,
always set the parking brake and move
the shift lever to P (Park). See Shifting
Into Park 0172 and
Driving Characteristics and Towing Tips
0 227.
{Warning
If you have four-wheel drive, the vehicle
will be free to roll —even if the shift
lever is in P (Park) —if the transfer case
is in N (Neutral). So, be sure the transfer
case is in a drive gear, Two-Wheel Drive (Continued)
Warning (Continued)
High or Four-Wheel Drive High or
Four-Wheel Drive Low—not in
N (Neutral). See Shifting Into Park 0172.
R : Use this gear to back up.
Caution
Shifting to R (Reverse) while the vehicle is
moving forward could damage the
transmission. The repairs would not be
covered by the vehicle warranty. Shift to
R (Reverse) only after the vehicle is
stopped.
To rock the vehicle back and forth to get
out of snow, ice, or sand without damaging
the transmission, see If the Vehicle Is Stuck
0 161.
N : In this position, the engine does not
connect with the wheels. To restart the
engine when the vehicle is already moving,
use N (Neutral) only.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16510661) - 2023 - CRC - 11/29/22
Driving and Operating 183
Once the 4x4 shift has completed, the DIC
message disappears, the 4x4 graphic stops
flashing, and the current setting is indicated.
The actual 4x4 shift request is only made
after the button is released. The 4x4 graphic
will remain flashing until the shift request
has completed.
A DIC message displays. Once the 4x4 shift
has completed, the DIC message disappears,
the 4x4 graphic stops flashing, and the
current setting is indicated.
Brakes
Antilock Brake System (ABS)
The Antilock Brake System (ABS) helps
prevent a braking skid and maintain steering
while braking hard.
If there is a problem with ABS, this warning
light stays on. SeeAntilock Brake System
(ABS) Warning Light 092. ABS does not change the time needed to
get a foot on the brake pedal and does not
always decrease stopping distance. If you
get too close to the vehicle ahead, there will
not be enough time to apply the brakes if
that vehicle suddenly slows or stops. Always
leave enough room ahead to stop, even
with ABS.
Using ABS
Do not pump the brakes. Just hold the brake
pedal down firmly. Hearing and feeling ABS
operate is normal.
Braking in Emergencies
ABS allows steering and braking at the same
time. In many emergencies, steering can
help even more than braking.
Electric Parking Brake
The Electric Parking Brake (EPB) can always
be applied, even if the vehicle is off. In case
of insufficient electrical power, the EPB
cannot be applied or released. To prevent
draining the battery, avoid unnecessary
repeated cycles of the EPB.
The system has a red parking brake status
light and an amber service parking brake
warning light. See
Electric Parking Brake
Light 091 and
Service Electric Parking Brake Light 092.
There are also parking brake-related Driver
Information Center (DIC) messages.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16510661) - 2023 - CRC - 11/29/22
184 Driving and Operating
Before leaving the vehicle, check the red
parking brake status light to ensure that the
parking brake is applied.
EPB Apply
To apply the EPB:1. Be sure the vehicle is at a complete stop.
2. Pull the EPB switch momentarily.
The red parking brake status light will flash
and then stay on once the EPB is fully
applied. If the red parking brake status light
flashes continuously, the EPB is only
partially applied or there is a problem with
the EPB. A DIC message will display. Release
the EPB and try to apply it again. If the
light does not come on, or keeps flashing,
have the vehicle serviced. Do not drive the
vehicle if the red parking brake status light
is flashing. See your dealer.
If the amber service parking brake warning
light is on, pull the EPB switch. Continue to
hold the switch until the red parking brake
status light remains on. If the amber service
parking brake warning light is on, see your
dealer. If the EPB is applied while the vehicle is
moving, the vehicle will decelerate as long
as the switch is pulled. If the switch is
pulled until the vehicle comes to a stop, the
EPB will remain applied.
The vehicle may automatically apply the EPB
in some situations when the vehicle is not
moving. This is normal, and is done to
periodically check the correct operation of
the EPB system, or at the request of other
safety functions that utilize the EPB.
If the EPB fails to apply, block the rear
wheels to prevent vehicle movement.
EPB Release
To release the EPB:
1. Turn the vehicle on.
2. Apply and hold the brake pedal.
3. Press the EPB switch momentarily.
The EPB is released when the red parking
brake status light is off.
If the amber service parking brake warning
light is on, release the EPB by pressing and
holding the EPB switch. Continue to hold the
switch until the red parking brake status
light is off. If either light stays on after
release is attempted, see your dealer.
Caution
Driving with the parking brake on can
overheat the brake system and cause
premature wear or damage to brake
system parts. Make sure that the parking
brake is fully released and the brake
warning light is off before driving.
Automatic EPB Release
The EPB will automatically release if the
vehicle is running, placed into gear, and an
attempt is made to drive away. Avoid rapid
acceleration when the EPB is applied, to
preserve parking brake lining life.
Brake Assist
Brake Assist detects rapid brake pedal
applications due to emergency braking
situations and provides additional braking to
activate the Antilock Brake System (ABS) if
the brake pedal is not pushed hard enough
to activate ABS normally. Minor noise, brake
pedal pulsation, and/or pedal movement
during this time may occur. Continue to
apply the brake pedal as the driving
situation dictates. Brake Assist disengages
when the brake pedal is released.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16510661) - 2023 - CRC - 11/29/22
188 Driving and Operating
Mode Activation
To activate each mode, turn the MODE knob
on the center console in either direction.
Mode Descriptions
Normal Mode :Use this mode for normal
city and highway driving. This setting
provides balance between comfort and
handling. This is the setting the vehicle will
default to every time it is started, unless
Tow/Haul mode has been activated within
the last four hours. See “Tow/Haul Mode”
later in this section.
7Off-Road Mode : Use this mode only
for off-road recreational driving. Off-Road
Mode should be used to improve driving at
moderate speeds on grass, gravel, dirt,
unpaved roads, or deep snow. If equipped,
this mode modifies steering, pedal map,
transmission shift points, Four-Wheel Drive
AUTO, Antilock Brake System (ABS),
Electronic Stability Control (ESC), and
Traction Control System (TCS) performance.
Off-Road mode optimizes ABS performance
to decrease stopping distances for
deformable or loose surfaces.
For more information on off-road driving,
see Off-Road Driving 0153.
gTerrain Mode : Use this mode when
traveling on challenging road conditions at
lower speeds, such as a two-track, difficult
terrain, or rock crawling. This mode allows
for one pedal driving which automatically
applies the vehicle brakes when the
accelerator pedal position is decreased. This
can also be used for pulling a boat out of
the water on a trailer. Terrain mode functions when the vehicle is
in 4
mor 4n, and in D (Drive), R (Reverse),
or L (Low). When the vehicle is in L (Low),
the lower the gear, the more aggressive the
braking.
The following are the braking calibrations
for each gear:
.L1: Most aggressive
.L2 or D (Drive): Moderately aggressive
.L3–L8: Least aggressive
The vehicle uses more aggressive braking
calibrations for the above drive states when
it is in 4
ncompared to 4m.
When in Terrain Mode, the vehicle shifts
automatically, but holds a lower gear longer
to maximize engine torque. This is done so
vehicle momentum is not lost when driving
up a hill. This mode modifies steering, pedal
map, transmission shift points, ABS, ESC, and
TCS performance for better control at lower
speeds and over rough terrain.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16510661) - 2023 - CRC - 11/29/22
Driving and Operating 189
Do not lock the front axle while in Terrain
Mode when driving on slippery roads. If the
front axle is locked while in Terrain mode,
the ABS warning light appears indicating
that ABS is off, which may result in the
wheels locking during deceleration. See
Locking Front Axle0192.
When the vehicle comes to a stop on an
upward grade, Automatic Vehicle Hold is
engaged until the accelerator pedal is
pressed. Start/Stop and cruise control are
disabled in Terrain Mode.
Active Braking will be engaged while in
Terrain Mode when vehicle speed is less
than 48 km/h (30 mph). Terrain mode will
not operate at speeds exceeding 80 km/h
(50 mph).
In D (Drive) and 4
n, moderate braking is
applied until the vehicle comes to a stop. In
D (Drive) and 4
m, moderate braking is
applied until the vehicle is at idle speeds. In
4
nor 4mand L1 or L2, the braking is applied
until the vehicle comes to a stop. In 4
nor
4
mand in L3-L8, the braking is applied until
the vehicle is at idle speeds. Terrain Mode will automatically exit to
Normal Mode if the brake or transmission
temperatures become too hot, the Electronic
Parking Brake (EPB) becomes inoperable, the
vehicle cannot perform braking or vehicle
hold, or if the transfer case is shifted out of
4
mor 4n.
For more information on off-road driving,
see Off-Road Driving 0153 and
Hill and Mountain Roads 0159.
_Tow/Haul Mode : Use this mode
when towing heavy loads to provide
increased performance and vehicle control.
Tow/Haul mode adjusts steering, pedal map,
transmission shift points, ABS, ESC, TCS
performance, and uses Trailer Sway
Control (TSC).
If equipped with only Normal and Tow/Haul
modes, there may be a Tow/Haul mode
button on the drive mode control knob or
center stack. Press
_to enter the mode. If the vehicle is turned off with Tow/Haul
Mode active and then restarted within four
hours or less, Tow/Haul will remain active.
Otherwise, the vehicle will start in
Normal Mode.
For more information on Tow/Haul mode,
see
Towing Equipment 0236.
9BAJA Mode (AT4x) : Use this mode for
off-road recreational driving at higher
speeds. This mode is not designed for
on-road usage. Hard packed sand, dirt, and
gravel are examples of surfaces that support
high speed driving. Baja mode can be
activated in all transfer case states.
Baja mode adjusts the steering, pedal map,
Four-Wheel Drive Auto, transmission shift
points, ABS, ESC, and TCS performance in
order to maximize response at higher vehicle
speeds. If enabled, the rear lockers will
remain locked at all speeds.
Baja mode optimizes ABS performance to
decrease stopping distances for deformable
or loose surfaces.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16510661) - 2023 - CRC - 11/29/22
Driving and Operating 191
Mode Selection Attributes
MODESNormal
Default Off-Road Tow/Haul Terrain Baja
Steering Normal Normal Tow/Haul Terrain Normal
Transmission (2WD/4WD High) Normal Tow/Haul Tow/Haul Crawl Baja with DPM
Locking Rear Axle Up to 40 km/h
(25 mph) Unlimited Up to 40 km/h
(25 mph)Up to 80 km/h
(50 mph) Unlimited
Locking Front Axle Up to 40 km/h
(25 mph) Up to 40 km/h
(25 mph) Up to 40 km/h
(25 mph) Up to 40 km/h
(25 mph) Up to 40 km/h
(25 mph)
Throttle Progression (2WD/4WD High) Normal Normal Normal Crawl Baja
Traction Control (TCS) Normal Off-Road Normal Terrain Off-Road
Stability Control (ESC) Normal Off-Road Normal Off-Road Baja
Antilock Brake System (ABS) Normal Off-Road Normal Normal Baja
Limited-Slip Differential
If equipped, the limited-slip differential can
give more traction on snow, mud, ice, sand,
or gravel. It works like a standard axle most
of the time, but when traction is low, thisfeature allows the drive wheel with the
most traction to move the vehicle. For
vehicles with the limited-slip differential,
driven under severe conditions, the rear axle
fluid should be changed. See
Maintenance
Schedule 0328.
Locking Rear Axle
If equipped, the locking rear axle can give
the vehicle additional traction from the rear
wheels when traveling in off-road situations
such as mud, snow, steep hills, and uneven
terrain.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16510661) - 2023 - CRC - 11/29/22
192 Driving and Operating
Caution
If you try to lock the axle while the
vehicle is stuck and the tires are spinning,
the vehicle’s drivetrain could be damaged.
The repairs would not be covered by the
vehicle warranty. Always lock the axle
before attempting situations and/or
navigating terrain that could cause the
vehicle to become stuck.
Caution
If the vehicle’s axle is locked while driving
on pavement, the drivetrain could be
damaged. Repairs would not be covered
by the vehicle warranty. Do not use the
locking axle on pavement.
Before the front axle can be locked, the rear
axle must be locked and the transfer case
must be in 4
n.
To lock the rear axle: 1. Press the rear axle locking switch with the vehicle moving less than 30 km/h
(20 mph).
2. Wait for the light in the switch to stop flashing and remain illuminated to show
that the rear axle is locked.
If the electronic locking differential has
difficulty engaging, release the
accelerator pedal.
The locking rear axle will be disengaged
when the vehicle speed exceeds 30 km/h
(20 mph). The Off-Road Mode allows the
axle lock to remain engaged at higher
vehicle speeds. After pressing the switch to unlock the axle,
it may remain locked due to torque in the
driveline. The axle is more easily unlocked
by turning the steering wheel to the right
and to the left while traveling at a low
speed.
Locking Front Axle
If equipped, the locking front axle can give
the vehicle additional traction when
traveling in off-road situations such as mud,
snow, steep hills, and uneven terrain.
The locking front axle must not be used on
high traction surfaces such as pavement.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16510661) - 2023 - CRC - 11/29/22
Driving and Operating 193
Caution
If you try to lock the axle while the
vehicle is stuck and the tires are spinning,
the vehicle’s drivetrain could be damaged.
The repairs would not be covered by the
vehicle warranty. Always lock the axle
before attempting situations and/or
navigating terrain that could cause the
vehicle to become stuck.
Caution
If the vehicle’s axle is locked while driving
on pavement, the drivetrain could be
damaged. Repairs would not be covered
by the vehicle warranty. Do not use the
locking axle on pavement.
{Warning
Driving on pavement with a locked front
axle may cause reduction to or complete
loss of steering assist, which could result
in serious injury, death, or property
damage. Do not use the locking front
axle on pavement.Before the front axle can be locked, the
transfer case must be in 4
n.
To lock the front axle, press the front/rear
axle locking switch. If it was not already
locked, the rear axle will lock first followed
by the front axle
To lock the front and rear axles: 1. Place the transfer case in 4
n. This is the
only mode that allows the front axle to
lock. See Four-Wheel Drive 0179 for
more information regarding the transfer
case and four-wheel drive low operation.
2. Press the front/rear axle locking switch with the vehicle stopped or moving less
than 30 km/h (20 mph).
3. Wait for the light in the switch to stop flashing and remain illuminated to show
that the front axle is locked. Engagement
of the front axle lock will disable the
Antilock Brake System (ABS) and
illuminate the ABS warning light. The
wheels may lock up in this condition
when decelerating from either applying
the brake pedal or automatic braking in
Terrain Mode. See Driver Mode Control
0 187. If this occurs, press the accelerator pedal to unlock the wheels. Hill Decent
Control (HDC) will also be disabled when
the front axle lock is engaged.
If the electronic locking differential has
difficulty engaging, release the
accelerator pedal.
To unlock the front axle, perform one of the
following actions:
‐ Press the rear axle locking switch. The
front axle unlocks and the rear axle
remains locked. See Locking Rear Axle
0 191.
‐ Press the front/rear axle locking switch.
The front and rear axles both unlock.
The locking front axle will be disengaged
when the vehicle speed exceeds 30 km/h
(20 mph) or the transfer case is shifted out
of 4
n.
ABS will be automatically enabled and the
ABS warning light will turn off when the
locking front axle is disengaged.
Do not lock the front axle while in Terrain
Mode when driving on slippery roads. If the
front axle is locked while in Terrain mode,
the ABS warning light appears indicating

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16510661) - 2023 - CRC - 11/29/22
194 Driving and Operating
that ABS is off, which may result in the
wheels locking during deceleration. See
Driver Mode Control0187.
If HDC was enabled prior to axle lock, it will
be automatically enabled when the locking
front axle is disengaged.
After pressing the switch to unlock the axle,
it may remain locked due to torque in the
driveline. The axle is more easily unlocked
by turning the steering wheel to the right
and to the left while traveling at a low
speed.
Cruise Control
With cruise control a speed of about
40 km/h (25 mph) or more can be
maintained without keeping your foot on
the accelerator. Cruise control does not work
at speeds below about 40 km/h (25 mph).
{Warning
Cruise control can be dangerous where
you cannot drive safely at a steady
speed. Do not use cruise control on
winding roads or in heavy traffic. (Continued)
Warning (Continued)
Cruise control can be dangerous on
slippery roads. On such roads, fast
changes in tire traction can cause
excessive wheel slip, and you could lose
control. Do not use cruise control on
slippery roads.
If the cruise control is being used and the
Traction Control (TCS) system or StabiliTrak/
Electronic Stability Control (ESC) begins to
limit wheel spin, the cruise control will
automatically disengage. See Traction
Control/Electronic Stability Control 0185. If a
collision alert occurs when cruise control is
activated, cruise control is disengaged. See
Forward Collision Alert (FCA) System 0215.
When road conditions allow you to safely
use it again, cruise control can be turned
back on.
If equipped with Hill Descent Control (HDC),
cruise control will disengage if HDC is Active.
If the brakes are applied, the cruise control
disengages.
5: Press to turn the system on or off.
A white indicator comes on in the
instrument cluster when cruise control is
turned on.
+RES : If there is a set speed in memory,
press briefly to resume to that speed or
press and hold to accelerate. If cruise control
is already active, use to increase vehicle
speed.
−SET : Press briefly to set the speed and
activate cruise control. If cruise control is
already active, use to decrease vehicle
speed.
*: Press to disengage cruise control
without erasing the set speed from memory.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16510661) - 2023 - CRC - 11/29/22
196 Driving and Operating
Erasing Speed Memory
The cruise control set speed is erased from
memory if
5is pressed or if the ignition is
turned off.
Adaptive Cruise Control (Camera)
If equipped, Adaptive Cruise Control (ACC)
allows the cruise control set speed and
following gap to be selected. Read this
entire section before using this system. The
following gap is the following time between
your vehicle and a vehicle detected directly
ahead in your path, moving in the same
direction. If no vehicle is detected in your
path, ACC works like regular cruise control.
ACC uses a windshield mounted front
camera sensor.
If a vehicle is detected in your path, ACC can
apply acceleration or limited, moderate
braking to maintain the selected following
gap. To disengage ACC, apply the brake.
If ACC is controlling the vehicle speed when
the Traction Control System (TCS) or
StabiliTrak/Electronic Stability Control (ESC)
system activates, ACC may automatically
disengage. See Traction Control/Electronic
Stability Control 0185. When road
conditions allow ACC to be safely used, ACC can be turned back on. Disabling the TCS or
StabiliTrak/ESC system will disengage and
prevent engagement of ACC.
ACC can reduce the need for you to
frequently brake and accelerate, especially
when used on expressways, freeways, and
interstate highways. When used on other
roads, you may need to take over the
control of braking or acceleration more
often.
{Warning
ACC has limited braking ability and may
not have time to slow the vehicle down
enough to avoid a collision with another
vehicle you are following. This can occur
when vehicles suddenly slow or stop
ahead, or enter your lane. Also see
“Alerting the Driver”
later in this section.
Complete attention is always required
while driving and you should be ready to
take action and apply the brakes. See
Defensive Driving 0151.
{Warning
ACC will not detect or brake for children,
pedestrians, animals, or other objects.
Do not use ACC when:
.On winding and hilly roads or when
the sensors are blocked by snow, ice,
or dirt. The system may not detect a
vehicle ahead. Keep the entire front of
the vehicle clean.
.Visibility is poor due to rain, snow,
fog, dirt, insect residue, or dust; when
other foreign objects obscure the
camera and/or radar; or when the
vehicle in front or oncoming traffic
causes additional environmental
obstructions, such as road spray. ACC
performance is limited under these
conditions.
.On slippery roads where fast changes
in tire traction can cause excessive
wheel slip.
.With extremely heavy cargo loaded in
the cargo area or rear seat, or when
the vehicle is loaded in excess of load
limits. See Vehicle Load Limits 0162.