TechnicianVision · Knowledge base
Calibration Research Tips: Blind Spot Indicator In Side Mirrors
I-CAR · February 4, 2026
Summary
This article clarifies that removing, installing, or replacing side mirrors with blind spot indicator lights does not trigger a requirement to calibrate the blind spot detection system. It explains that the actual radar sensors are located behind the rear bumper cover or quarter panels, while the mirror lights serve only as output indicators.
What to do on the job
Do not perform or bill for blind spot calibration when only servicing or replacing side mirrors, as the radar sensors are located in the rear of the vehicle and the mirror lights are merely outputs.
How to use it
Use this document when writing or defending an estimate to justify why a blind spot calibration is not included or necessary when only repairing or replacing side mirrors. It helps prevent unnecessary calibration operations while ensuring compliance with OEM guidelines that focus calibration requirements on the rear radar sensors.
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