Side Obstacle Detection Control Module Replacement

2025 Chevrolet Trailblazer ACTIV, FWDSECTION Side Obstacle Detection Control Module Replacement
GM5282756Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
Preliminary Procedure 
Rear Bumper Fascia Replacement
1 Side Object Sensing Alert Module Bolt
Tighten 
2.5 N.m (22 lb in)
2 Side Object Sensor Module - Left

Procedure

  1. Disconnect the electrical connector.
  2. Perform the necessary programming and setup procedure: B218L Side Object Sensor Module - Left: Programming and Setup
3 Side Object Sensor Module - Right

Procedure

  1. Disconnect the electrical connector.
  2. Perform the necessary programming and setup procedure: B218R Side Object Sensor Module - Right: Programming and Setup
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:

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