GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Chevy C Cab/Chassis HD (GMT 400) 🢒 Body 🢒 Seats 🢒 Front Seat Lumbar Support Bladder Replacement

Removal Procedure

    Object Number: 276304 Size: SH
  1. Remove the seat from the vehicle. Refer to Split Bench Seat Replacement or Bench Seat Replacement or Front Seat Replacement - Bucket .
  2. Tilt the seat back forward and place the seat assembly upside-down.
  3. Remove the seat back panel lower retainer from the seat frame.
  4. Remove the seat back cover. Refer to Front Seat Back Cushion Cover and Cushion Pad Replacement .
  5. Remove the rubber hose between the bladder and the pump.

    6. Place a hand down inside the seat back and disconnect the bladder mounting bars from the round hooks on the frame.

  6. Slide the bladder downward and off the mounting bars (1).
  7. Remove the bladder from the seat back.

Installation Procedure

    Object Number: 276304 Size: SH
  1. Position the bladder inside the seat back on the mounting bars (1) and slide upward.
  2. Install the bladder mounting bars to the round hooks on the frame.
  3. Install the rubber hose between the bladder and the pump.
  4. Install the seat back cover. Refer to Front Seat Back Cushion Cover and Cushion Pad Replacement .
  5. Install the seat back panel lower retainer to the seat frame.
  6. Install the seat assembly into the vehicle. Refer to Split Bench Seat Replacement or Bench Seat Replacement or Front Seat Replacement - Bucket .