13/06/2026
A Toyota Alphard has checked in today for blind spot monitor (BSM) calibration.
The Blind Spot Monitor is part of the vehicleโs advanced driver assistance system (ADAS), designed to help improve safety during lane changes by detecting vehicles approaching from the rear side areas that are not easily visible in the side mirrors. When a vehicle enters the blind spot zone, the system alerts the driver through indicator warnings on the side mirrors.
Calibration is a critical process after repairs or any work involving the rear bumper, side mirrors, wheel alignment, suspension, or sensor removal. Even small changes in sensor angle or vehicle height can affect detection accuracy. During calibration, the system is adjusted and aligned according to manufacturer specifications to ensure precise detection range, correct warning timing, and reliable performance on the road.
Proper calibration helps ensure the system responds accurately in real driving conditions, supporting safer lane changes and reducing the risk of side-impact collisions.