Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1596 (SEAT SYSTEM)REPAIR INSTRUCTIONSMEMORY SEAT CONTROL MODULE REPLACEMENTINSTALLATION PROCEDURE

2003 Chevrolet TrailBlazer 4.2 S, 4WD

Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Position the module into the vehicle.
Connect the lower electrical harness connectors (2).

Fig 1: Lower Electrical Harness Connectors
Courtesy of GENERAL MOTORS CORP.
Slide the module (2) to the left to engage the lower retainers.
NOTE: Refer to FASTENER NOTICE .
Install the module retaining screws (3).
Tighten

Tighten the screws to 3 N.m (26 lb in).
Connect the upper electrical harness connectors (3).
Install the seat cushion. Refer to Seat Cushion Frame Replacement-Front .

Fig 2: Upper Electrical Harness Connectors & Memory Seat Control Module Retaining Screws
Courtesy of GENERAL MOTORS CORP.
If a new memory seat module was installed, the seat needs to synchronized:
1. Operate the seat in all directions:
  - Front tilt
  - Rear tilt
  - Horizontal
  - Recline
2. If the seat stops part way due to programmed soft stop, release the switch and operate again in the same direction tilt the seat touches the mechanical stop.
3. Repeat the above for all seat positions.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.