trailer GMC CANYON 2022 Owner's Guide

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
15275607) - 2022 - CRC - 11/2/21
Driving and Operating 227
allows manual application of the trailer
brakes. Use the ITBC control panel and the
DIC trailer brake display page to adjust and
display power output to the trailer brakes.
Trailer Brake DIC Display Page
The ITBC display page indicates:
.Trailer Gain setting
.Output to the trailer brakes
.Trailer connection
.System operational status
To display:
.Scroll through the DIC menu pages
.Press a Trailer Gain (+) or (−) button
.Activate the Manual Trailer Brake Apply
Lever
TRAILER GAIN: Press a Trailer Gain button to
recall the current Trailer Gain setting. Each
press and release of the gain buttons will
then change the Trailer Gain setting. Press
the Trailer Gain (+) or (−) to adjust. Press
and hold to continuously adjust the Trailer
Gain. To turn the output to the trailer off,
adjust the Trailer Gain setting to 0.0. This
setting can be adjusted from 0.0 to 10.0
with a trailer connected or disconnected. TRAILER OUTPUT: This displays anytime a
trailer with electric brakes is connected.
Output to the trailer brakes is based on the
amount of vehicle braking present and
relative to the Trailer Gain setting. Output is
displayed from 0 to 100% for each gain
setting.
The Trailer Output will indicate
“- - - - - -”on
the Trailer Brake Display Page whenever the
following occur:
.No trailer is connected.
.A trailer without electric brakes is
connected, no DIC message displays.
.A trailer with electric brakes has become
disconnected, a CHECK TRAILER WIRING
message displays on the DIC.
.There is a fault present in the wiring to
the trailer brakes, a CHECK TRAILER
WIRING message displays on the DIC.
.The ITBC system is not working due to a
fault, a SERVICE TRAILER BRAKE SYSTEM
message displays in the DIC.
Manual Trailer Brake Apply Lever
Slide this lever right to apply the trailer’s
electric brakes independent of the vehicle’s
brakes. Use this lever to adjust Trailer Gain
to achieve proper power output to the
trailer brakes. The trailer's and the vehicle's brake lamps will come on when either
vehicle brakes or manual trailer brakes are
applied and properly connected.
Trailer Gain Adjustment Procedure
Trailer Gain should be set for a specific
trailering condition and it must be
readjusted anytime vehicle loading, trailer
loading, or road surface conditions change.
{Warning
Trailer brakes that are over-gained or
under-gained may not stop the vehicle
and the trailer as intended and can result
in a crash. Always follow the instructions
to set the Trailer Gain for the proper
trailer stopping performance.
To adjust Trailer Gain for each towing
condition: 1. Drive the vehicle with the trailer attached on a level road surface
representative of the towing condition
and free of traffic at about 32–40 km/h
(20–25 mph) and fully apply the Manual
Trailer Brake Apply Lever.
Adjusting Trailer Gain at speeds lower
than 32–40 km/h (20–25 mph) may
result in an incorrect gain setting.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
15275607) - 2022 - CRC - 11/2/21
228 Driving and Operating
2. Adjust the Trailer Gain, using the TrailerGain (+) or (-) adjustment buttons, to
just below the point of trailer wheel
lock-up, indicated by trailer wheel squeal
or tire smoke when a trailer wheel locks.
Trailer wheel lock-up may not occur if
towing a heavily loaded trailer. Adjust
the Trailer Gain to the highest allowable
setting for the towing condition.
3. Readjust Trailer Gain anytime vehicle loading, trailer loading, or road surface
conditions change or if trailer wheel
lock-up is noticed at any time while
towing.
Other ITBC-Related DIC Messages
TRAILER CONNECTED: This message will
briefly display when a trailer with electric
brakes is first connected to the vehicle. This
message will automatically turn off in about
10 seconds. This message can be
acknowledged before it automatically
turns off.
CHECK TRAILER WIRING: This message will
display if:
.The ITBC system first determines
connection to a trailer with electric brakes
and then the trailer harness becomes
disconnected from the vehicle. If the disconnect occurs while the vehicle
is stationary, this message will
automatically turn off in about
30 seconds. This message will also turn
off if it is acknowledged or if the trailer
harness is reconnected.
If the disconnect occurs while the vehicle
is moving, this message will continue
until the ignition is turned off. This
message will also turn off if it is
acknowledged or if the trailer harness is
reconnected.
.There is an electrical fault in the wiring to
the trailer brakes. This message will
continue as long as there is an electrical
fault in the trailer wiring. This message
will also turn off if it is acknowledged.
To determine whether the electrical fault is
on the vehicle side or trailer side of the
trailer wiring harness connection: 1. Disconnect the trailer wiring harness from the vehicle.
2. Turn the ignition off.
3. Wait 10 seconds, then turn the ignition back to RUN.
4. If the CHECK TRAILER WIRING message reappears, the electrical fault is on the
vehicle side. If the CHECK TRAILER WIRING message only
reappears when connecting the trailer wiring
harness to the vehicle, the electrical fault is
on the trailer side.
SERVICE TRAILER BRAKE SYSTEM: This
message will display when there is a
problem with the ITBC system. If this
message continues over multiple ignition
cycles, have the vehicle serviced.
If either the CHECK TRAILER WIRING or
SERVICE TRAILER BRAKE SYSTEM message
displays while driving, the ITBC system may
not be fully functional or may not function
at all. When traffic conditions allow,
carefully pull the vehicle over to the side of
the road and turn the ignition off. Check the
wiring connection to the trailer and turn the
ignition back on. If either of these messages
continues, either the vehicle or trailer needs
service.
A GM dealer may be able to diagnose and
repair problems with the trailer. However,
any diagnosis and repair of the trailer is not
covered under the vehicle warranty. Contact
your trailer dealer for assistance with trailer
repairs and trailer warranty information.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
15275607) - 2022 - CRC - 11/2/21
Driving and Operating 229
Trailer Sway Control (TSC)
Vehicles with StabiliTrak/Electronic Stability
Control (ESC) have a Trailer Sway Control
(TSC) feature. Trailer sway is unintended
side-to-side motion of a trailer while towing.
If the vehicle is towing a trailer and the TSC
detects that sway is increasing, the vehicle
brakes are selectively applied at each wheel,
to help reduce excessive trailer sway.
If equipped with the Integrated Trailer Brake
Control (ITBC) system, and the trailer has an
electric brake system, StabiliTrak/ESC may
also apply the trailer brakes.
If TSC is enabled, the Traction Control
System (TCS)/StabiliTrak/ESC warning light
will flash on the instrument cluster. Reduce
vehicle speed by gradually removing your
foot from the accelerator. If trailer sway
continues, StabiliTrak/ESC can reduce engine
torque to help slow the vehicle. TSC will not
function if StabiliTrak/ESC is turned off. See
Traction Control/Electronic Stability Control
0201.
{Warning
Trailer sway can result in a crash and in
serious injury or death, even if the
vehicle is equipped with TSC.
If the trailer begins to sway, reduce
vehicle speed by gradually removing your
foot from the accelerator. Then pull over
to check the trailer and vehicle to help
correct possible causes, including an
improperly or overloaded trailer,
unrestrained cargo, improper trailer hitch
configuration, or improperly inflated or
incorrect vehicle or trailer tires. See
Towing Equipment 0223 for trailer
ratings and hitch setup recommendations.
Aftermarket Electronic Trailer Sway
Control Devices
Some trailers may come equipped with an
electronic device designed to reduce or
control trailer sway. Aftermarket equipment
manufacturers also offer similar devices that
connect to the wiring between the trailer
and the vehicle. These devices may interfere
with the vehicle’s trailer brake or other
systems, including integrated anti-sway
systems, if equipped. Messages related to
trailer connections or trailer brakes could
appear on the DIC. The effects of these
aftermarket devices may have on vehicle
handling or trailer brake performance is not
known.
{Warning
Use of aftermarket electronic trailer sway
control devices could result in reduced
trailer brake performance, loss of trailer
brakes, or other malfunctions, and result
in a crash. You or others could be
seriously injured or killed. Before using
one of these devices: (Continued)

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
15275607) - 2022 - CRC - 11/2/21
230 Driving and Operating
Warning (Continued)
.Ask the device or trailer manufacturer
if the device has been thoroughly
tested for compatibility with the
make, model, and year of your vehicle
and any optional equipment installed
on your vehicle.
.Before driving, check the trailer brakes
are working properly, if equipped.
Drive the vehicle with the trailer
attached on a level road surface that
is free of traffic at about 32-40 km/h
(20-25 mph) and fully apply the
manual trailer brake apply lever. Also,
check the trailer brake lamps and
other lamps are functioning correctly.
.If the trailer brakes are not operating
properly at any time, or if a DIC
message indicates problems with the
trailer connections or trailer brakes,
carefully pull the vehicle over to the
side of the road when traffic
conditions allow.
Trailer Tires
Special Trailer (ST) tires differ from vehicle
tires. Trailer tires are designed with stiff
sidewalls to help prevent sway and to
support heavy loads. These features can
make it difficult to determine if the trailer
tire pressures are low only based on a visual
inspection.
Always check all trailer tire pressures before
each trip when the tires are cool. Low trailer
tire pressure is a leading cause of trailer tire
blowouts.
Trailer tires deteriorate over time. The trailer
tire sidewall will show the week and year
the tire was manufactured. Many trailer tire
manufacturers recommend replacing tires
more than six years old.
Overloading is another leading cause of
trailer tire blowouts. Never load your trailer
with more weight than the tires are
designed to support. The load rating is
located on the trailer tire sidewall.Always know the maximum speed rating for
the trailer tires before driving. This may be
significantly lower than the vehicle tire
speed rating. The speed rating may be on
the trailer tire sidewall. If the speed rating is
not shown, the default trailer tire speed
rating is 105 km/h (65 mph).
Conversions and Add-Ons
Add-On Electrical Equipment
{Warning
The Data Link Connector (DLC) is used for
vehicle service and Emission Inspection/
Maintenance testing. See
Malfunction
Indicator Lamp (Check Engine Light) 087.
A device connected to the DLC —such as
an aftermarket fleet or driver-behavior
tracking device —may interfere with
vehicle systems. This could affect vehicle
operation and cause a crash. Such devices
may also access information stored in the
vehicle’s systems.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
15275607) - 2022 - CRC - 11/2/21
Vehicle Care 247
If the engine coolant temperature gauge is
no longer in the overheat zone, the vehicle
can be driven. Continue to drive the vehicle
slowly for about 10 minutes. Keep a safe
distance from the vehicle in front. If the
warning does not come back on, continue to
drive normally and have the cooling system
checked for proper fill and function.
If the warning continues, pull over, stop, and
park the vehicle right away.
If there is no sign of steam, idle the engine
for three minutes while parked. If the
warning is still displayed, turn off the
engine until it cools down.
Engine Fan
If the vehicle has a clutched engine cooling
fan, when the clutch is engaged, the fan
spins faster to provide more air to cool the
engine. In most everyday driving conditions,
the fan is spinning slower and the clutch is
not fully engaged. This improves fuel
economy and reduces fan noise. Under
heavy vehicle loading, trailer towing, and/or
high outside temperatures, the fan speed
increases as the clutch more fully engages,so an increase in fan noise may be heard.
This is normal and should not be mistaken
as the transmission slipping or making extra
shifts. It is merely the cooling system
functioning properly. The fan will slow down
when additional cooling is not required and
the clutch disengages.
This fan noise may also be heard when
starting the engine. It will go away as the
fan clutch partially disengages.
If the vehicle has electric cooling fan(s), the
fans may be heard spinning at low speed
during most everyday driving. The fans may
turn off if no cooling is required. Under
heavy vehicle loading, trailer towing, high
outside temperatures, or operation of the air
conditioning system, the fans may change
to high speed and an increase in fan noise
may be heard. This is normal and indicates
that the cooling system is functioning
properly. The fans will change to low speed
when additional cooling is no longer
required.
The electric engine cooling fans may run
after the engine has been turned. off. This is
normal and no service is required.
Washer Fluid
What to Use
When windshield washer fluid needs to be
added, be sure to read the manufacturer's
instructions before use. Use a fluid that has
sufficient protection against freezing in an
area where the temperature may fall below
freezing.
Adding Washer Fluid
Open the cap with the washer symbol on it.
Add washer fluid until the tank is full. See
Engine Compartment Overview
0235 for
reservoir location.
Caution
.Do not use washer fluid that contains
any type of water repellent coating.
This can cause the wiper blades to
chatter or skip.
(Continued)

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
15275607) - 2022 - CRC - 11/2/21
Vehicle Care 261
The vehicle may not be equipped with all of
the fuses, relays, and features shown.Fuses Usage
F1 TCM BATT –Traction
Control Module Power
F2 ECM BATT –Engine
Control Module Power
F3 A/C CLTCH –Air
Conditioning Clutch
F4 –
F5 ECM/ICCM/FPPM RUN/ CRANK–Integrated
Chassis Control Module
Run/Crank –Engine
Control Module Run/
Crank –Fuel Pump
Power Module Run
Crank
F6 WIPER –Front Wipers
F7 Cargo Lamp/Bed Lighting
F8 INJ EVEN –Fuel
Injectors Even
F9 INJ ODD –Fuel
Injectors Odd Fuses
Usage
F10 ECM IGN –Engine
Control Module Ignition
F11 MISC 1 –Oxygen/Mass
Air Flow/Humidity/
Induction Air
Temperature/Throttle
Inlet Pressure Sensors
F12 Starter
F13 TCM RUN/CRNK –
Traction Control Module
Run/Crank
F14 –
F15 –
F16 –
F17 FRT AXLE ACT –Front
Axle Actuator
F18 –
F19 AERO SHTR –
Aeroshutters
F20 –
F21 FRT BLWR –Front
Blower Fuses
Usage
F22 ABS VLV –Antilock
Brake System Valves
F23 –
F24 TRLR –Trailer
F25 TREC –Transfer Case
Electronic Control
F26 ABS PUMP –Antilock
Brake System Pump
F27 TRLR BRK CNTRL MDL –
Trailer Brake Control
Module
F28 REAR WNDW DEFOG - Rear Window Defogger
F29 –
F30 HTD SEAT DVR –Driver
Heated Seat
F31 –
F32 HTD SEAT PASS –
Passenger Heated Seat

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
15275607) - 2022 - CRC - 11/2/21
262 Vehicle Care
FusesUsage
F33 BCM 3 –Body Control
Module 3 –Right
Headlamp Low Beam
Supply Voltage, Right
Front Turn Signal Lamp
Supply Voltage, Left
Park Lamp Supply
Voltage, Left Rear Park
Lamp Supply Voltage
F34 FPPM –Fuel Pump
Power Module
F35 ICCM –Integrated
Chassis Control Module
F36 CHMSL –Center High
Mounted Stoplamp
F37 HI BEAM RT –Right
High-beam Headlamp
F38 HI BEAM LT –Left
High-beam Headlamp
F39 –
F40 –
F41 – Fuses
Usage
F42 –
F43 –
F44 –
F45 VAC PUMP –Brake
Vacuum Pump
F46 ECM 2 –Engine Control
Module 2
F47 MISC 2 –Mid Park
Phase Lock/Active Fuel
Management/Engine Oil
and Canister Purge
Solenoid(s)/Oxygen
Sensor
F48 Fog lamps
F49 –
F50 TRLR PRK LAMP –Trailer
Parking Lamp
F51 Horn
F52 –
F53 – Fuses
Usage
F54 –
F55 –
F56 WASH PUMP –
Washer Pump
F57 –
F58 –
F59 –
F60 MIR DEFOG –Mirror
Defogger
F61 –
F62 CNSTR VENT SOL –
Canister Vent Solenoid
F63 –
F64 TRLR REV LAMP –Trailer
Reverse Lamps
F65 TRLR STOP/TRN LAMP LT–Left Trailer
Stoplamp/Turnlamp
F66 TRLR STOP/TRN LAMP RT–Right Trailer
Stoplamp/Turnlamp

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
15275607) - 2022 - CRC - 11/2/21
Vehicle Care 263
FusesUsage
F67 EPS –Electric Power
Steering
F68 –
F69 RVC –Battery
Regulated Voltage
Control
F70 –
F71 –
F72 –
F73 –
F74 GEN –Generator
F75 – Relays
Usage
K1 A/C Clutch –Air
Conditioning Clutch
K2 STRTR –Starter
K3 –
K4 WPR SPD –Wiper
Speed
K5 WPR CNTRL –Wiper
Control
K6 Cargo Lamp/Bed Lighting
K7 PWR TRN –Powertrain
K8 –
K9 –
K10 – Relays
Usage
K11 CHMSL –Center High
Mounted Stop Lamp
K12 –
K13 VAC PUMP –Brake
Vacuum Pump
K14 TRLR PRK LAMPS –
Trailer Park Lamps
K15 RUN/CRNK –Run/Crank
K16 –
K17 REAR WNDW DEFOG –
Rear Window/Mirror
Defogger

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
15275607) - 2022 - CRC - 11/2/21
Vehicle Care 265
The vehicle may not be equipped with all of
the fuses, relays, and features shown.Fuses Usage
F1 BCM 1 –Body Control
Module 1 –Indicator
Dimming Control, Retained
Accessory Power (RAP)
Relay Coil Control, Rear
License Lamp Supply
Voltage, Windshield
Washer Relay Control, Run/
Crank Relay Coil Control,
Cruise/Electronic Torque
Control/Torque Converter
Clutch Brake Signal, Run
Ignition 3 Voltage
F2 –
F3 –
F4 STR/WHL/CNTL –Steering
Wheel Controls Fuses
Usage
F5 –
BCM 2–Body Control
Module 2 –Interior Lamp
Control, Accessory
Voltage (1), Backup Lamp
Relay Control, Park Lock
Solenoid Control, Trailer
Brake Apply Signal
F6 –
F7 –
F8 MIR WNDW MDL –Mirror
Window Module
F9 I/P CLUSTER –Instrument
Panel Cluster
F10 –
F11 BCM 8 –Body Control
Module 8 –Door Lock
Actuator Lock Control 2,
Door Lock Control (2), Door
Lock Actuator Unlock
Control
F12 –
F13 OnStar/HVAC Fuses
Usage
F14 RDO/INFOTMNT –Radio/
Infotainment
F15 BCM 6 –Body Control
Module 6 –LED Backlight
Dimming Control, Interior
Lamps, Lights Exterior
Reverse/Backup Lamps
Direct Drive, Stop Lamp
Relay Coil Supply Voltage
F16 CGM –Communication
Gateway Module
F17 BCM 4 –Body Control
Module 4 –Left Headlamp
Low Beam Supply Voltage,
Right Park Lamp Supply
Voltage, Left Rear Stop
Lamp Supply Voltage, Right
Rear Park Lamp Supply
Voltage
F18 AIRBAG/SDM/AOS MDL –
Airbag/Sensing and
Diagnostic Module/
Automatic Occupant
Sensing Module
F19 –

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
15275607) - 2022 - CRC - 11/2/21
Vehicle Care 269
(3) DOT (Department of
Transportation)
:The Department of
Transportation (DOT) code indicates that
the tire is in compliance with the U.S.
Department of Transportation Motor
Vehicle Safety Standards.
DOT Tire Date of Manufacture
:The last
four digits of the TIN indicate the tire
manufactured date. The first two digits
represent the week and the last two
digits, the year. For example, the third
week of the year 2020 would have a
four-digit DOT date of 0320. Week 01 is
the first full week (Sunday through
Saturday) of each year.
(4) Tire Identification Number (TIN)
:
The letters and numbers following the
DOT (Department of Transportation)
code are the Tire Identification Number
(TIN). The TIN shows the manufacturer
and plant code, tire size, and date the
tire was manufactured. The TIN is
molded onto both sides of the tire,
although only one side may have the
date of manufacture. (5) Tire Ply Material
:The type of cord
and number of plies in the sidewall and
under the tread.
(6) Uniform Tire Quality Grading
(UTQG)
:Tire manufacturers are
required to grade tires based on three
performance factors: treadwear,
traction, and temperature resistance.
For more information see Uniform Tire
Quality Grading 0281.
(7) Maximum Cold Inflation Load
Limit
:Maximum load that can be
carried and the maximum pressure
needed to support that load.
(8) Temporary Use Only
:Only use a
temporary spare tire until the road tire
is repaired and replaced. This spare tire
should not be driven on over 112 km/h
(70 mph), or 88 km/h (55 mph) when
pulling a trailer, with the proper
inflation pressure. See Full-Size Spare
Tire 0294.
Compact Spare Tire Example
(1) Tire Ply Material:The type of cord
and number of plies in the sidewall and
under the tread.
(2) Temporary Use Only
:The compact
spare tire or temporary use tire should
not be driven at speeds over 80 km/h
(50 mph). The compact spare tire is for
emergency use when a regular road tire
has lost air and gone flat. If the vehicle
has a compact spare tire, see Compact
Spare Tire 0293 and
If a Tire Goes Flat 0283.