2018 Buick Regal BaseFACTORY OEM SERVICE PROCEDURE

Accessory and Liftgate Control Module Replacement

WARNING: This page is about a different car, the 2020 Buick Regal TourX, 2020 Buick Regal, 2019 Buick Regal TourX, and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
GM4703242Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
Preliminary ProcedureΒ 
Rear Compartment Side Trim Replacement - Left Side (5-Door Wagon 35) , or Rear Compartment Side Trim Replacement - Left Side (Hatchback)
1 Accessory and Liftgate Control Module

Procedure

  1. Unlock the retaining tabs.
  2. Disconnect the electrical connectors.
  3. Control Module References - Programming and Setup
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

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.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.