
Previous Destinations
Previous OnStar®Destination Downloads are saved
under Previous Destinations in the navigation
system where they can be accessed or saved
to the address book.
Important Notes regarding OnStar
®Destination
Download:
If the navigation system is turned off when the
destination download is attempted, the navigation
system will automatically turn on and display
the OnStar
®Destination Download Screen. The
radio will remain on after the download occurs.
If OnStar®downloads a destination and the address
is not found in the mapping disc’s database and
routing by coordinates is not available, the Go and
Map buttons gray out and routing will not be
available. Press the blue OnStar
®button for further
assistance.
The Call button grays out when there is no phone
number available for your destination and while
connected to OnStar
®.
Map Destination Screen Functions
If the map screen is used to show destination, it will
have map screen capabilities such as Go, Mark, Zoom,
Scroll, etc. The address is shown at the top of the
screen.
Destination Map Screen
4-36

Maintenance When Trailer Towing
The vehicle needs service more often when pulling a
trailer. See this manual’s Maintenance Schedule
or Index for more information. Things that are especially
important in trailer operation are automatic transmission
uid, engine oil, axle lubricant, belts, cooling system
and brake system. It is a good idea to inspect
these before and during the trip.
Check periodically to see that all hitch nuts and bolts
are tight.
Trailer Wiring Harness
Heavy-Duty Trailer Wiring Package
The vehicle is equipped with the seven-wire trailer
towing harness. This harness with a seven-pin universal
heavy-duty trailer connector is attached to the rear
bumper beam. It is located next to the integrated
trailer hitch.The seven-wire harness contains the following trailer
circuits:
Yellow: Left Stop/Turn Signal
Dark Green: Right Stop/Turn Signal
Brown: Taillamps
White: Ground
Light Green: Back-up Lamps
Red w/ Black Stripe: Battery Feed*
Dark Blue: Trailer Brake*
*The fuses for these two circuits are installed in the
underhood electrical center, but the circuits are
not connected. They should be installed by your dealer
or a quali ed service center.
If charging a remote (non-vehicle) battery, press the
Tow/Haul mode button, if equipped, located at the end
of the shift lever. This will boost the vehicle system
voltage and properly charge the battery. If the trailer is
too light for Tow/Haul mode, or the vehicle is not
equipped with Tow/Haul, turn on the headlamps as a
second way to boost the vehicle system and charge
the battery.
5-54

Electric Brake Control Wiring
Provisions
These wiring provisions are included with the vehicle as
part of the heavy-duty trailer wiring package. These
provisions are for an electric brake controller. The
red/black stripe power feed will not be connected to the
battery until the ring terminal is unstowed and connected
to the underhood electrical center. The instrument panel
contains blunt cut wires near the data link connector for
the trailer brake controller. The harness contains the
following wires:
Dark Blue: Auxiliary
Red/Black: Battery
Light Blue/White: Brake Switch
White: Ground
The trailer brake controller should be installed by your
dealer/retailer or a quali ed service center.
Trailer Recommendations
Subtract the hitch loads from the Cargo Weight Rating
(CWR). CWR is the maximum weight of the load
the vehicle can carry. It does not include the weight of
the people inside, but you can gure about 150 lbs.
(68 kg) for each passenger. The total cargo load must
not be more than the vehicles CWR.
Weigh the vehicle with the trailer attached, so the
GVWR or GAWR are not exceeded. If using a
weight-distributing hitch, weigh the vehicle without the
spring bars in place.
The best performance is obtained by correctly spreading
out the weight of the load and choosing the correct
hitch and trailer brakes.
For more information seeTowing a Trailer on page 5-42.
5-55

Audio System.........................................3-72, 4-59
Audio Steering Wheel Controls....................3-113
Radio Reception........................................3-114
Rear Seat Audio (RSA)...............................3-111
Theft-Deterrent Feature...............................3-113
XM™ Satellite Radio Antenna System...........3-115
Audio System(s)
Rear Side Window Antenna.........................3-115
Automatic Headlamp System............................3-19
Automatic Transmission
Fluid..........................................................6-21
Operation...................................................2-29
Autoride
®.......................................................5-42
B
Battery..........................................................6-39
Electric Power Management..........................3-22
Run-Down Protection...................................3-23
Bench Seat, Split (60/40).................................1-10
Bluetooth
®.....................................................3-73
Brake
Emergencies................................................ 5-6
Brake Fluid....................................................6-36
Brakes..........................................................6-36
System Warning Light..................................3-37
Braking........................................................... 5-4
Braking in Emergencies..................................... 5-6
Break-In, New Vehicle.....................................2-24Bucket Seats, Rear.........................................1-16
Bulb Replacement...........................................6-50
Back-Up Lamps...........................................6-51
Headlamp Aiming........................................6-48
High Intensity Discharge (HID) Lighting...........6-51
License Plate Lamps....................................6-53
Replacement Bulbs......................................6-53
Buying New Tires...........................................6-70
C
Calibration.....................................................3-51
California Fuel.................................................. 6-6
California Perchlorate Materials Requirements....... 6-4
California Proposition 65 Warning....................... 6-4
Canadian Owners................................................ ii
Capacities and Speci cations..........................6-110
Carbon Monoxide...................2-12, 2-14, 2-38, 5-28
Care of
Safety Belts................................................6-97
Center Console Storage Area...........................2-63
Center Seat...................................................1-10
Chains, Tire...................................................6-75
Charging System Light....................................3-36
Check
Engine Lamp..............................................3-40
Checking Things Under the Hood......................6-12
Chemical Paint Spotting.................................6-101
2

Phone
Bluetooth®..................................................3-73
Power
Door Locks.................................................2-10
Electrical System.......................................6-103
Liftgate......................................................2-14
Lumbar Controls........................................... 1-4
Reclining Seatbacks...................................... 1-8
Retained Accessory.....................................2-26
Seat ............................................................ 1-3
Steering Fluid.............................................6-34
Windows....................................................2-18
Power Assist Steps.........................................2-16
Privacy..........................................................8-17
Event Data Recorders..................................8-17
Navigation System.......................................8-18
OnStar .......................................................8-18
Radio Frequency Identi cation.......................8-18
Problems with Route Guidance.........................4-58
Programmable Automatic Door Locks.................2-11
R
Radio............................................................4-59
Radio Frequency Identi cation (RFID), Privacy....8-18
Radios
Rear Seat Audio........................................3-111
Reception.................................................3-114
Theft-Deterrent..........................................3-113Rainsense™ II Wipers....................................... 3-9
Reading Lamps..............................................3-22
Rear Air Conditioning and Heating System
and Electronic Climate Controls.....................3-30
Rear Axle......................................................6-46
Locking........................................................ 5-9
Rear Door Security Locks................................2-11
Rear Heated Seats.........................................1-10
Rear Seat Armrest..........................................2-65
Rear Seat Audio (RSA)..................................3-111
Rear Seat Entertainment System..............3-85, 3-95
Rear Side Window Antenna............................3-115
Rear Storage Area..........................................2-65
Rear Vision Camera........................................2-48
Rear Windshield Washer/Wiper.........................3-11
Rearview Mirror, Automatic Dimming..................2-40
Rearview Mirrors.............................................2-40
Reclining Seatbacks, Power............................... 1-8
Recommended Fluids and Lubricants.................7-13
Recovery Hooks.............................................5-31
Recreational Vehicle Towing.............................5-38
Remote Keyless Entry (RKE) System.................. 2-4
Remote Keyless Entry (RKE) System, Operation..... 2-5
Remote Vehicle Start........................................ 2-8
Removing the Flat Tire and Installing
the Spare Tire.............................................6-82
Removing the Spare Tire and Tools...................6-78
Replacement Bulbs.........................................6-53
Replacement Parts, Maintenance......................7-15
10