GM Service Manual Online
For 1990-2009 cars only

    Caution: Refer to Eye Protection Caution in the Preface section.

    Important: 

       • The hydraulic system is self-bleeding and does not require any type of CONVENTIONAL BLEEDING procedures.
       • Inspect the hydraulic fluid level with the vehicle parked on a level surface, the folding top in the up position, and the rear compartment open.
       • When new, the power folding top hydraulic fluid is golden clear. As the system is cycled, it picks up the carbon black from the numerous O-ring seals used in the system. The carbon black acts like a dye and causes the fluid to darken considerably and take on a black appearance. This is a normal occurrence and no repair attempts should be performed, as replacement fluid will also darken.
       • When servicing the hydraulic system do not allow the fluid level to drop below the minimum indicator line on the reservoir, or pump damage may occur.
       • Wait 5 minutes before separating the hydraulic cylinder lines at any connectors.


    Object Number: 1659176  Size: SH
  1. Inspect the fluid level, fill it to the midway point  (1) on the reservoir. Refer to Folding Top Fluid Addition .
  2. Start the vehicle.
  3. Cycle the folding top under power through one complete cycle in both directions.
  4. Inspect the fluid level again and add more fluid as necessary. Refer to Folding Top Fluid Addition .
  5. Cycle the folding top under power through 5 complete cycles in both directions. Allow 5 minutes between each cycle.
  6. Inspect the folding top for proper operation.