What is a common sign that an ADAS calibration is required after windshield replacement?

• A. A visible change in sensor alignment or warning lights appearing on the instrument cluster indicating calibration is needed.
• B. The car's door handles malfunction.
• C. The sunroof leaks.
• D. The tires wear unevenly.

Answer: (A)

When the windshield is replaced, the forward-looking camera and other sensors used by ADAS must stay precisely aligned with the vehicle’s reference frame. A small shift in how the sensors sit can change the camera’s view of the road or the position of objects, which the system detects as a mismatch. That mismatch often triggers warning lights on the instrument cluster or a message indicating that calibration is needed. This warning is the clearest sign that the ADAS calibration is required, because it directly signals that the sensors may no longer be properly aligned and the system’s features could be unreliable.

Other issues like door handles malfunctioning, sunroof leaks, or tires wearing unevenly aren’t related to ADAS sensor alignment after a windshield change, so they aren’t indicators that calibration is needed.