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.
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 the 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.
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.
6-12
O
Odometer......................................................3-31
Off-Road Driving.............................................4-11
Off-Road Recovery..........................................4-10
Oil
Engine.......................................................5-16
Pressure Light.............................................3-42
Oil, Engine Oil Life System..............................5-19
Older Children, Restraints................................1-33
Online Owner Center........................................ 7-5
OnStar, Privacy..............................................7-18
OnStar
®System, see OnStar®Manual...............2-43
Operation, Universal Home Remote System........2-47
Outlet Adjustment............................................3-26
Outlets
Accessory Power.........................................3-20
Outside
Automatic Dimming Mirror.............................2-40
Convex Mirror.............................................2-40
Heated Mirrors............................................2-40
Power Mirrors.............................................2-39
Overheated Engine Protection
Operating Mode..........................................5-31
Owner Checks and Services.............................. 6-9
Owners, Canadian.............................................. iii
P
Paint, Damage...............................................5-96
Parade Dimming.............................................3-18
Park
Shifting Into................................................2-33
Shifting Out of............................................2-35
Park Aid........................................................2-41
Park Brake....................................................2-32
Park Tilt Mirrors..............................................2-40
Parking
Assist........................................................2-41
Over Things That Burn.................................2-35
Passenger Airbag Status Indicator.....................3-33
Passenger Compartment Air Filter.....................3-28
Passenger Sensing System..............................1-65
Passing.........................................................4-10
PASS-Key
®III+ Electronic Immobilizer...............2-20
PASS-Key®III+ Electronic Immobilizer
Operation...................................................2-21
Perchlorate Materials Requirements,
California..................................................... 5-4
Power
Door Locks.................................................2-10
Electrical System.........................................5-98
Liftgate......................................................2-12
9
