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Parking Brake and Automatic
Transmission Park (P)
Mechanism Check
{ CAUTION
When you are doing this check,
your vehicle could begin to
move. You or others could be
injured and property could be
damaged. Make sure there is
room in front of your 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 NEUTRAL (N), slowly remove
foot pressure from the regular
brake pedal. Do this until
the vehicle is held by the parking
brake only.
• To check the PARK (P)
mechanism’s holding ability: With
the engine running, shift to
PARK (P). 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 flush any corrosive
materials from the underbody. Take
care to clean thoroughly any
areas where mud and other debris
can collect.
Service and Maintenance 11-11
2008 - Pontiac G8 Owner Manual