Owner’s Manual
Table Of Contents
- 2011 GMC Yukon/Yukon XL Owner Manual BookTOC
- Introduction
- In Brief
- Instrument Panel
- Initial Drive Information
- Remote Keyless Entry (RKE) System
- Remote Vehicle Start
- Door Locks
- Liftgate
- Windows
- Seat Adjustment
- Memory Features
- Second Row Seats
- Third Row Seats
- Heated Seats
- Heated and Ventilated Seats
- Head Restraint Adjustment
- Safety Belts
- Sensing System for Passenger Airbag
- Mirror Adjustment
- Steering Wheel Adjustment
- Throttle and Brake Pedal Adjustment
- Interior Lighting
- Exterior Lighting
- Windshield Wiper/Washer
- Climate Controls
- Transmission
- Four-Wheel Drive
- Vehicle Features
- Performance and Maintenance
- Keys, Doors and Windows
- Seats and Restraints
- Head Restraints
- Front Seats
- Rear Seats
- Safety Belts
- Airbag System
- Where Are the Airbags?
- When Should an Airbag Inflate?
- What Makes an Airbag Inflate?
- How Does an Airbag Restrain?
- What Will You See After an Airbag Inflates?
- Passenger Sensing System
- Servicing the Airbag-Equipped Vehicle
- Adding Equipment to the Airbag-Equipped Vehicle
- Airbag System Check
- Replacing Airbag System Parts After a Crash
- Child Restraints
- Older Children
- Infants and Young Children
- Child Restraint Systems
- Where to Put the Restraint
- Lower Anchors and Tethers for Children (LATCH System)
- Replacing LATCH System Parts After a Crash
- Securing Child Restraints (Rear Seat Position)
- Securing Child Restraints (Center Front Seat Position)
- Securing Child Restraints (Right Front Seat Position)
- Storage
- Instruments and Controls
- Controls
- Warning Lights, Gauges, and Indicators
- Instrument Cluster
- Speedometer
- Odometer
- Trip Odometer
- Tachometer
- Fuel Gauge
- Engine Oil Pressure Gauge
- Engine Coolant Temperature Gauge
- Voltmeter Gauge
- Safety Belt Reminders
- Airbag Readiness Light
- Passenger Airbag Status Indicator
- Charging System Light
- Malfunction Indicator Lamp
- Brake System Warning Light
- Antilock Brake System (ABS) Warning Light
- Tow/Haul Mode Light
- StabiliTrak® Indicator Light
- Tire Pressure Light
- Engine Oil Pressure Light
- Low Fuel Warning Light
- Security Light
- High-Beam On Light
- Front Fog Lamp Light
- Cruise Control Light
- Information Displays
- Vehicle Messages
- Battery Voltage and Charging Messages
- Brake System Messages
- Door Ajar Messages
- Engine Cooling System Messages
- Engine Oil Messages
- Engine Power Messages
- Fuel System Messages
- Key and Lock Messages
- Lamp Messages
- Object Detection System Messages
- Ride Control System Messages
- Airbag System Messages
- Anti-Theft Alarm System Messages
- Tire Messages
- Transmission Messages
- Vehicle Reminder Messages
- Washer Fluid Messages
- Vehicle Personalization
- Universal Remote System
- Lighting
- Infotainment System
- Climate Controls
- Driving and Operating
- Vehicle Care
- General Information
- Vehicle Checks
- Doing Your Own Service Work
- Hood
- Engine Compartment Overview
- Engine Oil
- Engine Oil Life System
- Automatic Transmission Fluid
- Engine Air Cleaner/Filter
- Cooling System
- Engine Coolant
- Engine Overheating
- Overheated Engine Protection Operating Mode
- Engine Fan
- Power Steering Fluid
- Washer Fluid
- Brakes
- Brake Fluid
- Battery
- Four-Wheel Drive
- Front Axle
- Rear Axle
- Starter Switch Check
- Automatic Transmission Shift Lock Control Function Check
- Ignition Transmission Lock Check
- Park Brake and P (Park) Mechanism Check
- Wiper Blade Replacement
- Glass Replacement
- Headlamp Aiming
- Bulb Replacement
- Electrical System
- Wheels and Tires
- Tires
- Tire Sidewall Labeling
- Tire Designations
- Tire Terminology and Definitions
- Tire Pressure
- Tire Pressure Monitor System
- Tire Pressure Monitor Operation
- Tire Inspection
- Tire Rotation
- When It Is Time for New Tires
- Buying New Tires
- Different Size Tires and Wheels
- Uniform Tire Quality Grading
- Wheel Alignment and Tire Balance
- Wheel Replacement
- Tire Chains
- If a Tire Goes Flat
- Tire Changing
- Secondary Latch System
- Full-Size Spare Tire
- Jump Starting
- Towing
- Appearance Care
- Service and Maintenance
- Technical Data
- Customer Information
- Customer Information
- Customer Satisfaction Procedure
- Customer Assistance Offices
- Customer Assistance for Text Telephone (TTY) Users
- Online Owner Center
- GM Mobility Reimbursement Program
- Roadside Assistance Program
- Scheduling Service Appointments
- Courtesy Transportation Program
- Collision Damage Repair
- Service Publications Ordering Information
- Reporting Safety Defects
- Vehicle Data Recording and Privacy
- Customer Information
- Index

Black plate (92,1)
GMC Yukon/Yukon XL Owner Manual - 2011
9-92 Driving and Operating
.
In the Trailer Output display
on the DIC, “- - - - - -“ will
disappear if there is no
error present. Connecting
a trailer without electric
brakes will not clear the
six dashed lines.
4. Adjust the Trailer Gain by using
the gain adjustment (+ / -)
buttons on the Trailer Brake
Control Panel.
5. Drive the vehicle with the
trailer attached on a level road
surface representative of the
towing condition and free of
traffic at about 32 to 40 km/h
(20 to 25 mph) and fully apply
the Manual Trailer Brake Apply
lever.
Adjusting trailer gain at speeds
lower than 32 to 40 km/h
(20 to 25 mph) may result in an
incorrect gain setting.
6. Adjust the Trailer Gain 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. In this case, adjust the
Trailer Gain to the highest
allowable setting for the towing
condition.
7. Re-adjust Trailer Gain any time
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
In addition to displaying TRAILER
GAIN and TRAILER OUTPUT
through the DIC, trailer connection
and ITBC system status is displayed
in the DIC.
TRAILER CONNECTED – This
message will be briefly displayed
when a trailer with electric brakes is
first connected to the vehicle. This
message will automatically turn off
in about ten seconds. The driver
can also acknowledge this message
before it automatically turns off.
CHECK TRAILER WIRING – This
message will be displayed if:
1. 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 thirty seconds.
This message will also turn off if
the driver acknowledges this
message off or if the trailer
harness is re-connected.