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 MANUALSBUICK2006TERRAZA CXL, 3.5 L, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 137 (POWER ROOF SYSTEM)REPAIR INSTRUCTIONSSUNROOF MODULE ASSEMBLY REPLACEMENTINSTALLATION PROCEDURE

2006 Buick Terraza CXL, 3.5 L, AWD

Installation Procedure

2006 Buick Terraza CXL, 3.5 L, AWDSECTION Installation Procedure

WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Sunroof Module & Components

Courtesy of GENERAL MOTORS CORP.

Position the sunroof module to the vehicle roof with an assistant.

NOTE: Refer to FASTENER NOTICE in General Information.

Install the sunroof module bolts.
Tighten: Tighten the sunroof module bolts to 10 N.m (89 lb in).

Fig 2: Disconnecting/Reconnecting Sunroof Module Drain Hoses

Courtesy of GENERAL MOTORS CORP.

Connect the front and rear drain hoses to the sunroof module.

Fig 3: Removing/Installing Sunroof Module Electrical Connector

Courtesy of GENERAL MOTORS CORP.

Connect the electrical connector to the sunroof module.
Install the sunshade panel. Refer to Sunroof Sunshade Panel Replacement .
Install the sunroof window. Refer to Sunroof Window Replacement .
Perform the Initialization/Teach Procedure. Refer to Sunroof Motor/Actuator Initialization/Teach Process (Existing Motor) or Sunroof Motor/Actuator Initialization/Teach Process (New Motor) .
Inspect for proper operation of the sunroof. Refer to Sunroof Description and Operation (1 Connector System) .
Install the headliner. Refer to Headliner Replacement in Interior Trim.

RENDER: 1.0x

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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.