GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Blazer - 4WD 🢒 Body and Accessories 🢒 Body Rear End 🢒 Pickup Box Tonneau Cover Replacement

Removal Procedure
  1. Unlatch the tonneau cover.
  2. Roll up the tonneau cover.

    3. Object Number: 894114 Size: SH
  3. Loosen the header bolts (4).
  4. Slide the header guide away from the side rail flange.
  5. Remove the tonneau cover assembly (1).
  6. Remove the clamps (3).
  7. Remove the side rails (2).

Installation Procedure

    Object Number: 894114 Size: SH
  1. Install the side rails (2) against the front of the truck box, flush with the box rail and level with each other.

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Install the clamps (3) evenly spaced leaving 203 mm (8 in) on each end.

    3. Tighten
    Tighten the clamp bolts to 22 N·m (16 lb ft).

  3. Install the cover assembly (1).
  4. Slide the header guide up over the side rail flange.
  5. Tighten the header bolts (4).

    6. Tighten
    Tighten the header bolts to 27 N·m (20 lb ft).

  6. Unroll the tonneau cover.
  7. Latch the tonneau cover.

    8. Object Number: 894551 Size: SH
  8. For installation or for adjustment during the warmest part of the day inspect the tension plunger (1); 1.6 mm (1/16 in) raised is the optimal plunger position from the front rail (2).