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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 78 (Power Seat System) >> Diagnostic Information and Procedures >> Power Seat Adjuster Mechanical Diagnosis

Power Seat Adjuster Mechanical Diagnosis

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
Condition Possible Cause Correction
Horizontal Operation of Seat Not Smooth but Jerky-Apparent Hard Operation The adjuster horizontal actuator is damaged. Replace the adjuster assembly.
Horizontal Chuck or Looseness
  • The horizontal actuator is improperly adjusted to the rack.
  • The top plate subassembly is loose.
  • Replace the adjuster assembly.
  • Replace the adjuster assembly.
One Adjuster Will Not Operate Horizontally
  • The horizontal drive cable is disconnected or damaged.
  • The horizontal actuator is inoperative.
  • Inspect the drive cables, they must be straight to be engaged. Replace if damaged.
  • Replace the adjuster assembly.
One Adjuster Will not Operate Vertically
  • The vertical drive cable is disconnected or damaged.
  • The vertical actuator subassembly is inoperative.
  • Inspect the vertical drive cables, replace if damaged.
  • Replace the adjuster assembly.
Both Adjusters Will Not Operate Horizontally and/or Vertically
  • The motor is damaged or inoperative.
  • The wiring harness is damaged.
  • Replace the adjuster assembly
  • Replace the wiring harness.
Vertical Chuck or Looseness The vertical actuator is inoperative. Replace the adjuster assembly.
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