2020 GMC Acadia SLFACTORY OEM SERVICE PROCEDURE

Keyless Entry Control Module

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.

The keyless entry control module is a multi-function module which performs the following keyless entry system functions:

  • Activating vehicle antennas for passive keyless entry functions
  • Activating vehicle antennas for keyless start functions
  • Backup control for the ECM accessory wakeup and the run/crank relay
  • If equipped, controls the electronic steering column lock
  • Receiver of the exterior door handle switch inputs and door open switch (not the door ajar switch)
  • Ignition mode switch monitoring
Factory Service Tools

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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.

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