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 MANUALSPONTIAC2008GRAND PRIX BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 252 (FIXED AND MOVEABLE WINDOWS)REPAIR INSTRUCTIONSMIDGATE WINDOW ADJUSTMENT

2008 Pontiac Grand Prix Base

Midgate Window Adjustment

2008 Pontiac Grand Prix BaseSECTION Midgate Window Adjustment

WARNING: This page is about a different car, the 2008 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

Remove the midgate inner panel. Refer to Midgate Inner Panel Replacement .
Loosen the midgate window run channel retaining screws. Refer to Midgate Window Channel Replacement .

Fig 1: Adjusting Midgate Window

Courtesy of GENERAL MOTORS CORP.

Lower the midgate window out of the midgate weatherstrip.
Remove the midgate window regulator adjustment covers (2) from the midgate inner panel.
Loosen the lower regulator attachment nuts (3).
Adjust the fore/aft position of the midgate window by turning the adjustment screws (1).
- To move the top edge of window rearward, turn the adjustment screws clockwise.
- To move the top edge of the window forward, turn the adjustment screws counterclockwise.
- Each revolution of the adjustment screw moves the top edge of the window 0.5 mm (0.02 in) forward or rearward.
- Maximum adjustment is 6 revolutions in either direction.

NOTE: Refer to Fastener Notice .

Install the lower regulator attachment nuts (3).
Tighten: Tighten the regulator attachment nuts to 25 N.m (18 lb ft).
Install the midgate window run channel retaining screws. Refer to Midgate Window Channel Replacement .
Install the midgate window regulator adjustment covers (2) to the midgate inner panel.
Install the midgate inner panel. Refer to Midgate Inner Panel Replacement .

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.