Window Motor Relearn Procedure

2020 GMC Acadia SLSECTION Window Motor Relearn Procedure
WARNING: This page is about a different car, the 2021 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.

A relearn procedure may need to be performed after the following repair procedures have been completed:

  • When the window glass had to be realigned
  • When the window glass has been replaced
  • When the door has been replaced and the original window motor has been reused
  • When the window regulator has been replaced and the original window motor has been reused

The technician may experience the following symptoms when performing the express up function:

  • The glass may stop before reaching the top of the window frame
  • The window may auto-reverse when reaching the top of the window frame

This is caused by the window motor still retaining the original travel settings prior to being reinstalled with the new components

NOTE:

Prior to performing the relearn procedure the vehicle must have all 4 wheels properly inflated and mounted, the vehicle must be sitting on a level surface and all doors must be completely closed.

To relearn the window motor, follow these steps:

  1. Ignition ON.
  2. With a scan tool, select Module Diagnosis, K9 Body Control Module, Configuration/Reset Functions and then select the appropriate Clear Window Learn Values for the window motor requiring the relearn procedure.
  3. After the learn procedure, exit the scan tool learn procedure completely, the power window cannot be normalized and will not function until you exit the program.
  4. Starting with the window completely UP, press and hold the power window switch until the window is fully open and continue holding the switch down for approximately 5 seconds after the window is completely open.
  5. Pull the power window switch up until the window is fully closed and continue holding the switch up for approximately 5 seconds after the window is completely closed.

The window motor has now been calibrated to the new travel settings and will function normally.

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:

  • 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.