Installation Procedure

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

Attach a crossbrace to the left and the right adjusters.
Ensure that the tab bending downward at the center of the crossbrace faces the rear of the adjusters.
NOTE: Refer to FASTENER NOTICE .
Secure the crossbrace with 2 bolts.
Tighten

Tighten the bolts to 6 N.m (53 lb in).
Install the seat adjuster motor assembly to the seat adjuster. Refer to Seat Adjuster Motor Replacement - Front .

Fig 1: Installing Seat Adjuster
Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Install the right and left seat adjuster sliding mechanism in the same position that the mechanism had when you attached the adjuster-to-seat bottom frame.

Install the adjuster assembly to the floorpan attachments before you attach the adjusters to the seat. Use the floorpan as a guide during assembly in order to ensure correct adjuster alignment.
Install the adjuster assembly to the floorpan.
Install the seat adjuster to floorpan bolts.
Tighten

Tighten the adjuster to floorpan bolts to 42 N.m (31 lb ft).
Install the seat to the adjuster assembly.
Install the adjuster to the seat frame bolts.
Tighten

Tighten the bolts to 24 N.m (18 lb ft).
Position the seat back to the upright position.
Connect the electrical harness to the adjuster cross brace.
Connect the seat belt electrical harness, drivers seat only.
Connect the electrical harness from the 3 electric motors.
Install the lumbar adjuster relays to the motor bracket.
Remove the front seat from the vehicle. Refer to Seat Replacement - Front Bucket .
Install the seat cover J-retainers.

Fig 2: Seat Adjuster
Courtesy of GENERAL MOTORS CORP.
Install the seat belt.
Tighten

Tighten the nut to 42 N.m (31 lb ft).
Install the front seat trim panel. Refer to Trim Panel Replacement - Front Seat .
Install the front seat in the vehicle. Refer to Seat Replacement - Front Bucket .
Inspect the power seat adjusters. Verify that the adjusters are parallel and in phase with each other. If one adjuster reaches its maximum horizontal or vertical travel in a given direction before the other adjuster, the adjusters are out of phase.
Complete the following steps if there is horizontal travel:
1. 20.1. Operate the seat control switch until one adjuster reaches the full forward position.
2. 20.2. Disconnect the horizontal drive cable from the adjuster that has reached the full forward position.
3. 20.3. Operate the seat forward until the other adjuster reaches the full forward position.
4. 20.4. Connect the horizontal drive cable.
5. 20.5. Inspect the seat for correct horizontal travel.
Complete the following steps if there is front or rear vertical travel:
1. 21.1. Operate the seat control switch until one of the adjusters has reached the full raised positions at the front and rear vertical limits.
2. 21.2. Disconnect both of the vertical drive cables from the adjuster that has reached the full raised position.
3. 21.3. Operate the seat control switch until the other adjuster reaches the full raised positions at the front and rear vertical limits.
4. 21.4. Connect the front and rear vertical drive cables.
5. 21.5. Operate the adjusters through 1 or 2 complete cycles. Inspect the seat for correct vertical travel.
6. 21.6. If the adjusters are out of phase after the test cycle, repeat the above steps as needed.
Fig 3: Installing Seat Belt To Seat
Courtesy of GENERAL MOTORS CORP.