GM Service Manual Online
For 1990-2009 cars only

Four reversible motors operate the power seat in the following ways:

    • The first motor raises or lowers the front of the seat.
    • The second motor raises or lowers the rear of the seat.
    • The third motor moves the seat forward or backward.
    • The fourth motor reclines the seat back.

Move the seat adjuster switch UP in order to supply voltage to the seat rear height motor through the YEL wire. The motor is grounded through the seat adjuster switch through the LT BLU wire.

Move the seat adjuster switch to the DOWN position in order to reverse the polarity and lower the front of the seat.

The seat front height motor is operated in the same way as the seat rear height motor through the seat adjuster switch.

Move the seat adjuster switch UP or DOWN in order to operate the seat front height motor and the seat rear height motor at the same time.

Move the seat adjuster switch FORWARD or BACKWARD in order to operate the seat lateral motor and move the seat forward or backward.