Page 504 of 546

Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL®
coolant mixture if necessary. SeeEngine Coolant
on page 6-26.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the windshield
washer uid reservoir and add the proper uid if
necessary.
At Least Once a Month
Tire In ation Check
Inspect the vehicle’s tires and make sure they are
in ated to the correct pressures. Do not forget to check
the spare tire. SeeIn ation - Tire Pressure on
page 6-60. Check to make sure the spare tire is stored
securely. SeeChanging a Flat Tire on page 6-77.
Tire Wear Inspection
Tire rotation may be required for high mileage highway
drivers prior to the Engine Oil Life System service
noti cation. Check the tires for wear and, if necessary,
rotate the tires. SeeTire Inspection and Rotation on
page 6-67.
At Least Once a Year
Starter Switch Check
{CAUTION:
When you are doing this inspection, the vehicle
could move suddenly. If the vehicle moves, you or
others could be injured.
1. Before starting this check, be sure there is enough
room around the vehicle.
2. Firmly apply both the parking brake and the regular
brake. SeeParking Brake on page 2-41.
Do not use the accelerator pedal, and be ready to
turn off the engine immediately if it starts.
3. Try to start the engine in each gear. The vehicle
should start only in P (Park) or N (Neutral). If the
vehicle starts in any other position, contact
your dealer/retailer for service.
7-10
Page 505 of 546

Automatic Transmission Shift Lock
Control System Check
{CAUTION:
When you are doing this inspection, the vehicle
could move suddenly. If the vehicle moves, you or
others could be injured.
1. Before starting this check, be sure there is enough
room around the vehicle. It should be parked on a
level surface.
2. Firmly apply the parking brake. SeeParking Brake
on page 2-41.
Be ready to apply the regular brake immediately if
the vehicle begins to move.
3. With the engine off, turn the ignition to ON/RUN,
but do not start the engine. Without applying the
regular brake, try to move the shift lever out
of P (Park) with normal effort. If the shift lever
moves out of P (Park), contact your dealer/retailer
for service.
Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition to LOCK/OFF in each shift lever position.
The ignition should turn to LOCK/OFF only
when the shift lever is in P (Park).
The ignition key should come out only in
LOCK/OFF.
Contact your dealer/retailer if service is required.
7-11
Page 506 of 546

Parking Brake and Automatic
Transmission P (Park) Mechanism
Check
{CAUTION:
When you are doing this check, the vehicle could
begin to move. You or others could be injured and
property could be damaged. Make sure there is
room in front of the vehicle in case it begins to roll.
Be ready to apply the regular brake at once
should the vehicle begin to move.Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake, set the
parking brake.
To check the parking brake’s holding ability: With
the engine running and transmission in N (Neutral),
slowly remove foot pressure from the regular
brake pedal. Do this until the vehicle is held by the
parking brake only.
To check the P (Park) mechanism’s holding
ability: With the engine running, shift to P (Park).
Then release the parking brake followed by
the regular brake.
Contact your dealer/retailer if service is required.
Hood Support Gas Strut Service
Visually inspect gas strut for signs of wear, corrosion,
cracks, loss of lubricant, or other damage. Check
the hold open ability of gas strut. If necessary, replace
with genuine parts from your dealer/retailer.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.
7-12
Page 541 of 546

O
Odometer......................................................3-29
Odometer, Trip...............................................3-29
Off-Road Driving.............................................5-12
Off-Road Recovery..........................................5-11
Oil
Engine.......................................................6-15
Pressure Light.............................................3-39
Oil, Engine Oil Life System..............................6-18
Older Children, Restraints................................1-32
Online Owner Center........................................ 8-4
OnStar, Privacy..............................................8-17
OnStar
®System, see OnStar®Manual...............2-56
Operation, Universal Home Remote System........2-60
Ordering
Map DVDs .................................................4-56
Outlet Adjustment............................................3-26
Outlets
Accessory Power.........................................3-20
Outside
Convex Mirror.............................................2-49
Heated Mirrors............................................2-49
Power Foldaway Mirrors...............................2-47
Overheated Engine Protection
Operating Mode..........................................6-33
Owner Checks and Services.............................. 7-9
Owners, Canadian.............................................. iii
P
Paint, Damage..............................................6-101
Park
Shifting Into................................................2-43
Shifting Out of............................................2-44
Park Aid................................................2-50, 2-52
Park Brake....................................................2-41
Park Tilt Mirrors..............................................2-48
Parking
Assist........................................................2-50
Over Things That Burn.................................2-45
Passenger Airbag Status Indicator.....................3-31
Passenger Sensing System..............................1-61
Passing.........................................................5-11
PASS-Key
®III+ Electronic Immobilizer...............2-29
PASS-Key®III+ Electronic Immobilizer
Operation...................................................2-29
Perchlorate Materials Requirements, California...... 6-4
Phone
Bluetooth
®..................................................3-66
Power
Door Locks.................................................. 2-9
Electrical System.......................................6-103
Lumbar Controls........................................... 1-4
Reclining Seatbacks...................................... 1-8
Retained Accessory.....................................2-32
Seat............................................................ 1-3
Steering Fluid.............................................6-33
Windows....................................................2-24
9