2021 GMC CANYON warning

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
Instruments and Controls 87
{Warning
If the airbag readiness light ever comes
on and stays on, it means that
something may be wrong with the airbag
system. To help avoid injury to yourself
or others, have the vehicle serviced right
away. SeeAirbag Readiness Light 086
for more information, including important
safety information.
Charging System Light
The charging system light comes on briefly
when the ignition is turned on, but the
engine is not running, as a check to show
the light is working. The light turns off
when the engine is started. If it does not,
have the vehicle serviced by your dealer. If the light stays on, or comes on while
driving, there may be a problem with the
electrical charging system. Have it checked
by your dealer. Driving while this light is on
could drain the battery.
When this light comes on, the Driver
Information Center (DIC) also displays a
message.
If a short distance must be driven with the
light on, be sure to turn off all accessories,
such as the radio and air conditioner.
Malfunction Indicator Lamp
(Check Engine Light)
This light is part of the vehicle’s emission
control on-board diagnostic system. If this
light is on while the engine is running, a
malfunction has been detected and the
vehicle may require service. The light should
come on to show that it is working when
the ignition is on and the engine is not
running. See
Ignition Positions 0186.
Malfunctions are often indicated by the
system before any problem is noticeable.
Being aware of the light and seeking service
promptly when it comes on may prevent
damage.
Caution
If the vehicle is driven continually with
this light on, the emission control system
may not work as well, the fuel economy
may be lower, and the vehicle may not
run smoothly. This could lead to costly
repairs that might not be covered by the
vehicle warranty.
Caution
Modifications to the engine, transmission,
exhaust, intake, or fuel system, or the
use of replacement tires that do not
meet the original tire specifications, can
cause this light to come on. This could
lead to costly repairs not covered by the
vehicle warranty. This could also affect
the vehicle’s ability to pass an Emissions
Inspection/Maintenance test. See
Accessories and Modifications 0234.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
Instruments and Controls 89
Brake System Warning Light
MetricEnglish
This light should come on briefly when the
vehicle is turned on. If it does not come on
then, have it fixed so it will be ready to
warn you if there is a problem.
When the vehicle is on, the brake system
warning light also comes on when the
parking brake is set. The light stays on if
the parking brake does not fully release. If it
stays on after the parking brake is fully
released, there is a brake problem. Have the
brake system inspected right away.
If the light comes on while driving, pull off
the road and stop carefully. The brake pedal
might be harder to push, or the brake pedal
may go closer to the floor. It could take
longer to stop. If the light is still on, have
the vehicle towed for service. See Towing
the Vehicle 0296.
{Warning
The brake system might not be working
properly if the brake system warning
light is on. Driving with the brake system
warning light on can lead to a crash.
If the light is still on after the vehicle has
been pulled off the road and carefully
stopped, have the vehicle towed for
service.
Antilock Brake System (ABS)
Warning Light
This light comes on briefly when the engine
is started.
If the light does not come on, have it fixed
so it will be ready to warn if there is a
problem.
If the light comes on while driving, stop as
soon as it is safely possible and turn off the
vehicle. Then start the engine again to reset the system. If the ABS light stays on,
or comes on again while driving, the vehicle
needs service. A chime may also sound
when the light comes on steady.
If the ABS light is the only light on, the
vehicle has regular brakes, but the antilock
brakes are not functioning.
If both the ABS and the brake system
warning light are on, the vehicle's antilock
brakes are not functioning and there is a
problem with the regular brakes. See your
dealer for service.
See
Brake System Warning Light 089.
Four-Wheel-Drive Light
Auto Mode Shown, Other Modes Similar
If equipped, the four-wheel-drive light
displays what mode the vehicle is in. The
light will show each mode: 2WD, 4HI, AUTO
(all transfer cases); 4LOW and N (two-speed
transfer case only).

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
90 Instruments and Controls
The light will flash when a shift is in
progress. Once the shift is complete the
light will be steady.
If the light turns amber, there may be a
malfunction with the four-wheel-drive
system. See your dealer.
SeeFour-Wheel Drive 0197.
Tow/Haul Mode Light
For vehicles with the Tow/Haul Mode
feature, this light comes on when the Tow/
Haul Mode has been activated.
See Tow/Haul Mode 0196.
Hill Descent Control Light
If equipped, the Hill Descent Control light
comes on when the system is ready for use.
When the light flashes, the system is active.
See Hill Descent Control (HDC) 0205.
Lane Departure Warning (LDW)
Light
This light is green if LDW is on and ready to
operate.
This light changes to amber and flashes to
indicate that the lane marking has been
crossed without using a turn signal in that
direction.
See Lane Departure Warning (LDW) 0213.
Vehicle Ahead Indicator
If equipped, this indicator will display green
when a vehicle is detected ahead and amber
when you are following a vehicle ahead
much too closely.
See Forward Collision Alert (FCA) System
0 211.
Traction Off Light
This light comes on briefly while starting
the engine. If it does not, have the vehicle
serviced by your dealer. If the system is
working normally, the indicator light then
turns off.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
Instruments and Controls 91
The traction off light comes on when the
Traction Control System (TCS) has been
turned off by pressing and releasing the
TCS/StabiliTrak/ESC button.
This light and the StabiliTrak/ESC OFF light
come on when StabiliTrak/Electronic Stability
Control (ESC) is turned off.
If the TCS is off, wheel spin is not limited.
Adjust driving accordingly.
SeeTraction Control/Electronic Stability
Control 0204.
StabiliTrak OFF Light
This light comes on briefly while starting
the engine. If it does not, have the vehicle
serviced by your dealer.
This light comes on when the StabiliTrak/
Electronic Stability Control (ESC) system is
turned off. If StabiliTrak/ESC is off, the
Traction Control System (TCS) is also off. If StabiliTrak/ESC and TCS are off, the
system does not assist in controlling the
vehicle. Turn on the TCS and the StabiliTrak/
ESC systems, and the warning light
turns off.
See
Traction Control/Electronic Stability
Control 0204.
Traction Control System (TCS)/
StabiliTrak Light
This light comes on briefly when the engine
is started.
If the light does not come on, have the
vehicle serviced by your dealer. If the
system is working normally, the indicator
light turns off.
If the light is on and not flashing, the TCS
and potentially the StabiliTrak/ESC system
have been disabled. A Driver Information
Center (DIC) message may display. Check the DIC messages to determine which feature(s)
is no longer functioning and whether the
vehicle requires service.
If the light is on and flashing, the TCS and/
or the StabiliTrak/ESC system is actively
working.
See
Traction Control/Electronic Stability
Control 0204.
Tire Pressure Light
For vehicles with the Tire Pressure Monitor
System (TPMS), this light comes on briefly
when the engine is started. It provides
information about tire pressures and
the TPMS.
When the Light Is On Steady
This indicates that one or more of the tires
are significantly underinflated.
A Driver Information Center (DIC) tire
pressure message may also display. Stop as
soon as possible, and inflate the tires to the

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
92 Instruments and Controls
pressure value shown on the Tire and
Loading Information label. SeeTire Pressure
0 272.
When the Light Flashes First and Then Is On
Steady
If the light flashes for about a minute and
then stays on, there may be a problem with
the TPMS. If the problem is not corrected,
the light will come on at every ignition
cycle. See Tire Pressure Monitor Operation
0 274.
Engine Oil Pressure Light
Caution
Lack of proper engine oil maintenance
can damage the engine. Driving with the
engine oil low can also damage the
engine. The repairs would not be covered
by the vehicle warranty. Check the oil
level as soon as possible. Add oil if
required, but if the oil level is within the
operating range and the oil pressure is
still low, have the vehicle serviced.
Always follow the maintenance schedule
for changing engine oil.
This light should come on briefly as the
engine is started. If it does not come on,
have the vehicle serviced by your dealer.
If the light comes on and stays on, it means
that oil is not flowing through the engine
properly. The vehicle could be low on oil
and might have some other system
problem. See your dealer.
Low Fuel Warning Light (Base
Level)
English Shown
This light comes on for a few seconds when
the ignition is turned on as a check to
indicate it is working. If it does not come
on, have it fixed.
The low fuel warning light comes on and a
chime sounds when the vehicle is low on
fuel. The light turns off when fuel is added
to the fuel tank.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
Instruments and Controls 93
Low Fuel Warning Light (Uplevel)
This light is near the fuel gauge and comes
on briefly when the ignition is turned on as
a check to show it is working.
It also comes on when the fuel tank is low
on fuel. The light turns off when fuel is
added. If it does not, have the vehicle
serviced.
Security Light
The security light should come on briefly as
the engine is started. If it does not come on,
have the vehicle serviced by your dealer.
If the system is working normally, the
indicator light turns off.If the light stays on and the engine does
not start, there could be a problem with the
theft-deterrent system. See
Immobilizer
Operation 015.
High-Beam On Light
This light comes on when the high-beam
headlamps are in use.
See Headlamp High/Low-Beam Changer
0 103.
Front Fog Lamp Light
The fog lamp light comes on when the fog
lamps are in use. The light goes out when the fog lamps are
turned off. See
Fog Lamps0105 for more
information.
Lamps On Reminder
This light comes on when the exterior lamps
are in use, except when only the Daytime
Running Lamps (DRL) are active. See Exterior
Lamp Controls 0102.
Cruise Control Light
The cruise control light is white when the
cruise control is on and ready, and turns
green when the cruise control is set and
active.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
94 Instruments and Controls
The light goes out when the cruise control is
turned off. SeeCruise Control0206.
Door Ajar Light (Uplevel Cluster)
This light comes on when a door is open or
not securely latched. Before driving, check
that all doors are properly closed.
Information Displays
Driver Information Center (DIC)
(Base Level)
The DIC displays information about your
vehicle. It also displays warning messages if
a system problem is detected. See Vehicle
Messages 098. All messages appear in the
DIC display in the center of the instrument
cluster.
DIC Operation and Displays
The DIC has different displays which can be
accessed by using the DIC buttons on the
turn signal lever.
DIC Buttons
1. SET/CLR: Press to set, or press and hold
to clear, the menu item displayed.
2.
w x: Use the band to scroll through
the items in each menu.
3. MENU: Press to display the Trip/Fuel
Menu, the Vehicle Information Menu,
and the ECO Menu. This button is also
used to return to or exit the last screen
displayed on the DIC.
If the vehicle has a diesel engine, see the
Duramax diesel supplement for additional
DIC pages.
Trip/Fuel Menu (TRIP) Items
Press MENU on the turn signal lever until
the TRIP menu displays. Use
w xto scroll
through the menu items. Not all items are
available on every vehicle. The following is a
list of all possible menu items:
Digital Speed : Displays how fast the vehicle
is moving in either kilometers per hour
(km/h) or miles per hour (mph). The
speedometer cannot be reset.
Trip 1 or Trip 2, Average Fuel Economy :
Displays the current distance traveled, in
either kilometers (km) or miles (mi), from
the last reset for the trip odometer. The trip
odometer can be reset to zero by pressing
and holding the SET/CLR button while the
trip odometer display is showing.
Also displays the approximate average liters
per 100 kilometers (L/100 km) or miles per
gallon (mpg). This number is based on the
number of L/100 km (mpg) recorded since
the last time this menu item was reset. This
number reflects only the approximate
average fuel economy that the vehicle has
right now, and will change as driving
conditions change. Reset the average
consumption by pressing SET/CLR when it is
displayed.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
102 Lighting
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . . . . . . . . . . 102
Exterior Lamps Off Reminder . . . . . . . . . . 103
Headlamp High/Low-Beam Changer . . . 103
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Daytime Running Lamps (DRL) . . . . . . . . . 103
Automatic Headlamp System . . . . . . . . . . 103
Hazard Warning Flashers . . . . . . . . . . . . . . 104
Turn and Lane-Change Signals . . . . . . . . . 105
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Exterior Cargo Lamps . . . . . . . . . . . . . . . . . . 105
Interior Lighting
Instrument Panel IlluminationControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Reading Lamps . . . . . . . . . . . . . . . . . . . . . . . . 106
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . 107
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Battery Load Management . . . . . . . . . . . . 107
Battery Power Protection . . . . . . . . . . . . . . 107
Exterior Lighting Battery Saver . . . . . . . . 108
Exterior Lighting
Exterior Lamp Controls
The exterior lamp control is on the
instrument panel to the left of the steering
wheel.
O: Turns off the automatic headlamps and
Daytime Running Lamps (DRL). Turn the
headlamp control to
Oagain to turn the
automatic headlamps or DRL back on.
For vehicles first sold in Canada, off will only
work when the vehicle is in P (Park).
AUTO : Automatically turns on the
headlamps at normal brightness, together
with the following:
.Parking Lamps
.Instrument Panel Lights
.Taillamps
.License Plate Lamps
.Front/Rear Sidemarker Lamps
When the vehicle is turned off and the
headlamps are in AUTO, the headlamps turn
off. When the key is removed, they
automatically turn on for a set time. The
time of the delay can be changed using the
DIC. See Driver Information Center (DIC)
(Base Level) 094 or
Driver Information Center (DIC) (Uplevel)
0 96.
;:Turns on the parking lamps including
all lamps, except the headlamps.
2: Turns on the headlamps together with
the parking lamps and instrument panel
lights.
When the headlamps are turned on while
the vehicle is on, the headlamps turn off
automatically 10 minutes after the ignition
is turned off. When the headlamps are
turned on while the vehicle is off, the
headlamps will stay on for 10 minutes
before turning off to prevent the battery
from being drained. Turn the headlamp
control off and then back to the headlamp
on position to make the headlamps stay on