GM Service Manual Online
For 1990-2009 cars only

The windshield wiper system includes the following components:


Object Number: 245147  Size: SH
    • The wiper arm
    • The wiper motor
    • The wiper transmission (1)
    • The wiper blade

Object Number: 417495  Size: SH

The wiper/washer switch (3) controls the wiper system. The switch is located on the right side of the steering column. Intermittent wipers are optional equipment on all of the models. The wiper circuit ensures that the wiper blades will automatically return to their final rest position when the wiper switch is OFF.

Interval (Pulse) Operation

Move the wiper/washer switch to the INT position, in order to operate the wiper system in the intermittent (pulse) mode. The cycle speed is variable. Turn the ring on the wiper/washer switch from S (slow cycling) to F (fast cycling) in order to adjust the cycle speed. A capacitor inside the intermittent controller charges and discharges. The capacitor controls the intermittent wiper operation.

Washer Operation

The windshield washer system includes the following components:


Object Number: 417486  Size: SH
    • The washer solvent container (1)

Object Number: 417488  Size: SH
    • The washer pump (1) attached to the container
    • The hoses
    • The nozzles
    • The washer switch

The washer solvent container is mounted on the right fender, behind the headlamp.


Object Number: 417495  Size: SH

Pull the wiper/washer switch (3) in a rearward direction in order to activate the washer system. The washer will operate until you release the lever. When you activate the washer system, the wipers will operate at low speed.