Electronically Controlled Air
Suspension System
This system automatically keeps your vehicle level as
you load and unload. The system includes a
compressor, two height sensors and two air springs
supporting the rear axle.
The system also has an internal clock to prevent
overheating. If the system overheats, all leveling function
stops until the system cools down. During this time, the
indicator light on the air in ator system will be ashing.
The ignition has to be on for the system to in ate, in
order to raise the vehicle to the standard ride height after
loading. The system can lower the vehicle to the
standard ride height after unloading with the ignition on
and also for up to 30 minutes after the ignition has
been turned off.
You may hear the compressor operating when you load
your vehicle, and periodically as the system adjusts
the vehicle to the standard ride height.
Load leveling will not function normally with the in ator
hose attached to the in ator outlet. Remove the in ator
hose from the outlet during loading and unloading.
If the vehicle is parked for an extended period of time,
some bleed down of the suspension is normal. Upon
starting the vehicle, proper height will be achieved.
Overload Protection
The air suspension system is equipped with overload
protection. Overload protection is designed to protect the
air suspension system, and it is an indicator to the
driver that the vehicle is overloaded. When the overload
protection mode is on, it will not allow damage to the
air compressor. However, do not overload the vehicle.
SeeLoading Your Vehicle on page 4-46.
If the suspension remains at a low height, the rear axle
load has exceeded GAWR (Gross Axle Weight
Rating). When the overload protection mode is activated,
the compressor operates for about 30 seconds to one
minute without raising the vehicle depending on the
amount of overload. This will continue each time
the ignition is turned on until the rear axle load is
reduced below GAWR.
Indicator Light
The indicator light on the in ator switch in the rear
passenger compartment also serves as an indicator for
internal system error. If the indicator light is ashing
without the load leveling function or the in ator being
active, turn off the ignition. The next day turn on
the ignition and check the indicator light. The vehicle
can be driven with the light ashing, but if it is you
should have the vehicle serviced as soon as possible.
4-52
Gasolines containing oxygenates, such as ethers and
ethanol, and reformulated gasolines may be available
in your area to contribute to clean air. General Motors
recommends that you use these gasolines, particularly
if they comply with the speci cations described earlier.
Notice:Your vehicle was not designed for fuel
that contains methanol. Do not use fuel containing
methanol. It can corrode metal parts in your fuel
system and also damage the plastic and rubber
parts. That damage would not be covered under
your warranty.
Some gasolines that are not reformulated for low
emissions may contain an octane-enhancing additive
called methylcyclopentadienyl manganese tricarbonyl
(MMT); ask the attendant where you buy gasoline
whether the fuel contains MMT. General Motors
does not recommend the use of such gasolines.Fuels containing MMT can reduce the life of spark
plugs and the performance of the emission control
system may be affected. The malfunction indicator lamp
may turn on. If this occurs, return to your authorized
GM dealer for service.
Fuels in Foreign Countries
If you plan on driving in another country outside the
United States or Canada, the proper fuel may be hard
to nd. Never use leaded gasoline or any other fuel
not recommended in the previous text on fuel. Costly
repairs caused by use of improper fuel would not
be covered by your warranty.
To check the fuel availability, ask an auto club, or
contact a major oil company that does business in the
country where you will be driving.
5-7
Brake Wear
Your vehicle has four-wheel disc brakes.
Disc brake pads have built-in wear indicators that make
a high-pitched warning sound when the brake pads
are worn and new pads are needed. The sound
may come and go or be heard all the time your vehicle
is moving (except when you are pushing on the
brake pedal rmly).
{CAUTION:
The brake wear warning sound means that
soon your brakes will not work well. That
could lead to an accident. When you hear the
brake wear warning sound, have your vehicle
serviced.Notice:Continuing to drive with worn-out brake
pads could result in costly brake repair.
Some driving conditions or climates may cause a brake
squeal when the brakes are rst applied or lightly
applied. This does not mean something is wrong with
your brakes.
Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated, inspect
brake pads for wear and evenly tighten wheel nuts in
the proper sequence to GM torque speci cations.
Brake linings should always be replaced as complete
axle sets.Brake Pedal Travel
See your dealer if the brake pedal does not return to
normal height, or if there is a rapid increase in
pedal travel. This could be a sign of brake trouble.
Brake Adjustment
Every time you make a brake stop, your disc brakes
adjust for wear.
5-43
J
Jump Starting.................................................5-45
K
Keyless Entry System....................................... 2-5
Keys............................................................... 2-3
L
Lamps
Exterior......................................................3-14
Interior.......................................................3-17
Lamps On Reminder.......................................3-15
Lap-Shoulder Belt...................................1-13, 1-21
LATCH System
Child Restraints...........................................1-38
Securing a Child Restraint Designed
for the LATCH System..............................1-40
Leaving Your Vehicle.......................................2-13
Leaving Your Vehicle With the Engine Running......2-28
LEFT REAR DOOR AJAR................................3-55
Liftgate Release..............................................2-14
Liftgate/Liftglass..............................................2-14Liftglass/Liftgate..............................................2-14
Light
Air Bag Readiness.......................................3-30
Anti-Lock Brake System Warning...................3-34
Brake System Warning.................................3-32
Change Engine Oil......................................3-39
Charging System.........................................3-31
Check Gages Warning.................................3-41
Cruise Control.............................................3-40
Gate Ajar...................................................3-41
Low Fuel Warning.......................................3-42
Malfunction Indicator....................................3-35
Reduced Engine Power................................3-40
Safety Belt Reminder...................................3-30
Security.....................................................3-40
Service All-Wheel-Drive................................3-41
Lighted Visor Vanity Mirror...............................2-17
Listening to a DVD.................................3-83, 3-98
Loading Your Vehicle.......................................4-46
Loading Your Vehicle for Off-Road Driving..........4-17
Locking Rear Axle...........................................4-11
Lockout Protection..........................................2-13
Locks
Delayed Locking..........................................2-10
Door........................................................... 2-8
Leaving Your Vehicle....................................2-13
9
Locks (cont.)
Lockout Protection.......................................2-13
Power Door.................................................. 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-13
Loss of Control...............................................4-15
Low Fuel Warning Light...................................3-42
Luggage Carrier..............................................2-42
Lumbar
Power Controls............................................. 1-2
M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-9
At Least Once a Month.................................. 6-9
At Least Once a Year..................................6-10
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-16
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-14
Owner Checks and Services........................... 6-9
Recommended Fluids and Lubricants.............6-12Maintenance Schedule (cont.)
Scheduled Maintenance................................. 6-4
Using Your................................................... 6-3
Your Vehicle and the Environment................... 6-2
Maintenance When Trailer Towing.....................4-62
Making Turns.................................................4-60
Malfunction Indicator Light................................3-35
Matching Transmitter(s) to Your Vehicle............... 2-6
Memory Seat.................................................2-45
Message
DIC Warnings and Messages........................3-52
Mexico, Central America and Caribbean
Islands/Countries (Except Puerto Rico and
U.S. Virgin Islands) – Customer Assistance......... 7-5
Mirror Operation.............................................2-31
Mirrors
Automatic Dimming Rearview with OnStar
®
and Compass..........................................2-31
Outside Automatic Dimming Mirror with Curb
View Assist.............................................2-34
Outside Convex Mirror.................................2-34
Outside Heated Mirrors................................2-34
Outside Power Mirror...................................2-33
MyGMLink.com................................................ 7-4
10
V
Vehicle
Control........................................................ 4-6
Damage Warnings........................................... iv
Loading......................................................4-46
Symbols......................................................... iv
Vehicle Data Collection and
Event Data Records.....................................7-10
Vehicle Identi cation
Number (VIN)............................................5-101
Service Parts Identi cation Label..................5-101
Vehicle Personalization
Memory Seat..............................................2-45
Vehicle Storage..............................................5-45
Video Screen................................................3-103
Visor Vanity Mirror..........................................2-17
Visors...........................................................2-17
Voltmeter Gage..............................................3-32
W
Warning Lights, Gages and Indicators................3-27
Warnings
DIC Warnings and Messages........................3-52
Hazard Warning Flashers............................... 3-6
Other Warning Devices.................................. 3-6
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washing Your Vehicle......................................5-96
Weight Distributing Hitches and
Weight Carrying Hitches...............................4-57
Weight of the Trailer........................................4-55
Weight of the Trailer Tongue.............................4-56
What Kind of Engine Oil to Use........................5-20
What to Add..................................................5-42
What to Do with Used Oil................................5-23
What to Use..........................5-27, 5-39, 5-40, 5-52
17