Front Seat Track Synchronization

2020 Chevrolet Express 2500 LS, 2.8L Eng VIN 1SECTION Front Seat Track Synchronization
GM1710762Courtesy of GENERAL MOTORS COMPANY

The fore/aft manual adjuster is composed of an inboard track assembly (5), and outboard track (4) assembly, and an adjuster handle (1). Each track assembly is made of an upper track (2) and a lower track (3). Both tracks need to be aligned prior to installing in the vehicle.

To align the front seat tracks, do the following:

  1. Remove the seat from the vehicle.
  2. GM1710764Courtesy of GENERAL MOTORS COMPANY

    Put the seat upside down on a table, or on the floor as shown.

  3. Unlock both tracks by pushing the adjuster handle down.
  4. While pushing the adjuster handle down, move each lower track rearward until contact between the end travel stops.
  5. Release the adjuster handle.
  6. Move each lower track forward until an audible noise is heard, indicating that the track is fully locked.
  7. At this stage both manual tracks are aligned.
  8. Install the seat in the vehicle without touching the adjuster handle. Then tighten the rear bolts prior to any track adjustment.
  9. While sitting in the seat, cycle the tracks fore/aft and lock the tracks at different positions. Check to see whether the tracks are aligned.
  10. GM1710767Courtesy of GENERAL MOTORS COMPANY

    Visually inspect the tracks, adjust the upper tracks flush with the front of the lower tracks. Check that the configuration in locked position is identical for both inboard (1) and outboard tracks (2).

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.