GM Service Manual Online
For 1990-2009 cars only

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

    • The seat front height motor raises or lowers the front of the seat.
    • The seat rear height motor raises or lowers the rear of the seat.
    • The seat lateral motor moves the seat forward or backward.
    • The power recliner motor reclines the seat back.

Move the seat adjuster switch to the REAR UP position in order to supply voltage to the seat rear height motor through CKT 283 (LT BLU). The motor is grounded through the rear seat height switch through CKT 282 (YEL).

Move the seat adjuster switch to the REAR DOWN position in order to reverse the polarity and lower the rear 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.

Move the power recliner switch FORWARD OR BACKWARD in order to operate the power recliner motor and move the seat back forward or backward.