At least once a month, At least once a year, At least once a month -10 at least once a year -10 – Pontiac 2004 GTO User Manual
Page 292: Caution

Engine Coolant Level Check
Check the engine coolant level and add
DEX-COOL
®
coolant mixture if necessary. See Engine
Coolant on page 5-25 for further details.
Windshield Washer Fluid Level Check
Check the windshield washer fluid level in the windshield
washer tank and add the proper fluid if necessary.
At Least Once a Month
Tire Inflation Check
Visually inspect your tires and make sure tires are
inflated to the correct pressures. Do not forget to
check your spare tire. See Tires on page 5-51 for
further details.
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 you start, be sure you have enough room
around the vehicle.
2. Firmly apply both the parking brake and the regular
brake. See Parking Brake on page 2-23 if
necessary.
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 starter
should work only in PARK (P) or NEUTRAL (N).
If the starter works in any other position, contact
your GM Goodwrench dealer for service.
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