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HOMESERVICE MANUALSBUICK2006TERRAZA CXL, 3.5 L, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 174 (DOOR SYSTEM, MIRROR SYSTEM & WINDOW SYSTEM)REPAIR INSTRUCTIONSREAR DOOR LOCK REPLACEMENT
2006 Buick Terraza CXL, 3.5 L, AWD

Rear Door Lock Replacement

2006 Buick Terraza CXL, 3.5 L, AWDSECTION Rear Door Lock Replacement
WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Replacing Rear Door Lock
GM1646566Courtesy of GENERAL MOTORS CORP.
Lock Replacement - Rear Door

Callout Component Name
NOTE: Refer to Fastener Notice .
Fastener Tightening Specifications:  Refer to Fastener Tightening Specifications .

Preliminary Procedures

  1. Remove the rear door outside handle. Refer to Door Handle Replacement - Rear Outside .
  2. Remove the interior trim panel. Refer to Trim Panel Replacement - Side Rear Door (Impala) .
  3. Remove the water deflector. Refer to Water Deflector Replacement - Rear Door (Impala) .
1 Bolt, Rear Side Door Lock (Qty: 3)

Tighten:  10 N.m (89 lb in)
2 Lock Assembly, Rear Side Door
Tip: 
  1. Release the inside handle cable retainers before removing the door lock.
  2. Disconnect the door lock electrical connector.
  3. Remove the door lock with the outside handle housing.
  4. Transfer the handle and lock rods to the new door lock.
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.