Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSGMC2020ACADIA SLE, 2.5L ENG VIN AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 34 (PROGRAMMING AND SETUP)REPAIR INSTRUCTIONSB218R SIDE OBJECT SENSOR MODULE - RIGHT: PROGRAMMING AND SETUPREPLACE AND PROGRAM ECU OR REPROGRAM ECU
2020 GMC Acadia SLE, 2.5L Eng VIN A
Replace and Program ECU or Reprogram ECU
2020 GMC Acadia SLE, 2.5L Eng VIN ASECTION Replace and Program ECU or Reprogram ECU
WARNING: This page is about a different car, the 2019 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
To program a replacement or an existing ECU, perform the following procedure:
NOTE:
- Due to continuous improvements, the on screen selections may vary from instructions below.
- It is recommended to program both the left and right (if programmable) when a programming event is required.
- Some systems only have one programmable Side Object Sensor Module.
- Access the Service Programming System (SPS) and follow the on-screen instructions.
- On the SPS Supported Controllers screen, select B218L/R Side Object Sensor Module or B218R Right Side Object Sensor Module or B218L Left Side Object Detection.
- On the SPS Select Function / Sequence screen, select Sequential Programming or Programming
- At the end of programming, choose the "Clear DTCs" function on the SPS screen.
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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.