(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.
(j) 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 347 for what to use.
Inspect hoses. Clean radiator, condenser, pressure
cap, and filler neck. Pressure test the cooling
system and pressure cap.
(k) 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.
(l) Visually inspect belt for fraying, excessive
cracks, or obvious damage. Replace belt if
necessary.
(m) If you drive regularly under dusty conditions,
inspect the filter at each engine oil change.
Owner Checks and Services
These owner checks and services should be
performed at the intervals specified to help
ensure the safety, dependability, and
emission control performance of your vehicle.
Your GM Goodwrench
®
dealer can assist you
with these checks and services.
Be sure any necessary repairs are completed at
once. Whenever any fluids or lubricants are added
to your vehicle, make sure they are the proper
ones, as shown in Recommended Fluids and
Lubricants on page 453.
449
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