Repair Lane

Body Control Module (BCM) Replacement

Replaces and programs the computer that runs your lights, locks, wipers, and interior electronics.

Quote requiredDifficulty: hard~1.53.5 hrsHalf a day
Typical range — final quote required
$325–1,515
Parts$150–900
Labor$175–615
Labor time1.53.5 hrs
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What's involved

What this repair actually is.

The body control module is the computer in charge of most non-engine electronics — lighting, locks, windows, wipers, alarm, and more. When it fails (often from water intrusion or voltage spikes), multiple unrelated systems misbehave at once. We confirm the BCM is truly at fault through testing, install the correct module, and program it to your VIN so keys, options, and security features work.

Symptoms

How you can tell.

  • Several unrelated electrical systems acting up together
  • Lights or wipers turning on by themselves
  • Key fob and locks stopped responding
  • Car intermittently will not start with a good battery
  • Warning lights across the dash after water got inside
If you delay

A failing BCM can strand you by blocking the starter or drain the battery nightly, and erratic lighting is a safety issue in traffic.

Educational estimate. Real pricing depends on your vehicle, the inspection, parts availability, taxes, and shop rates. Use this as a guide while you shop quotes.
Related

Often done together.