Pontiac 2009 G8 Owner's Manual page 318

11-8 Service and Maintenance
(e) Make sure the safety belt
reminder light and safety belt
assemblies are working properly.
Look for any other loose or damaged
safety belt system parts. If you see
anything that might keep a safety belt
system from doing its job, have it
repaired. Have any torn or frayed
safety belts replaced. Also see
Airbag System Check on page 1-33.
(f) Lubricate all key lock cylinders,
door hinges and latches, hood
hinges and latches and trunk lid
hinges and latches. More frequent
lubrication may be required when
exposed to a corrosive environment.
Applying silicone grease on
weatherstrips with a clean cloth will
make them last longer, seal
better, and not stick or squeak.
(g) Visually inspect belt for fraying,
excessive cracks, or obvious
damage. Replace belt if necessary.
(h) Change automatic transmission
fluid and filter if the vehicle is
mainly driven under one or more of
these conditions:
− In heavy city traffic where the
outside temperature regularly
reaches 90°F (32°C) or higher.
− In hilly or mountainous terrain.
− When doing frequent trailer
towing.
− Uses such as found in taxi,
police, or delivery service.
(i) Drain, flush, and refill cooling
system. This service can be
complex; you should have your
dealer/retailer perform this service.
See Engine Coolant on page 9-15
for what to use. Inspect hoses.
Clean radiator, condenser, pressure
cap, and filler neck. Pressure test the
cooling system and pressure cap.
(j) A fluid loss in any vehicle system
could indicate a problem. Have the
system inspected and repaired and
the fluid level checked. Add fluid
if needed.
(k) If you drive regularly under dusty
conditions, inspect the filter at
each engine oil change.
(l) If you drive regularly under dusty
conditions, the filter may require
replacement more often.
(m) Drain, flush, and refill brake
hydraulic system at a regular service
interval (I or II) every two years.
This service can be complex;
you should have your dealer/retailer
perform this service. See Brakes
on page 9-25.