Which of the following describes calibration drift?

• A. A misalignment of ADAS sensors or cameras causing incorrect readings.
• B. A drift in tire pressure.
• C. A dashboard gauge misreadings due to battery.
• D. No such thing exists.

Answer: (A)

Calibration drift happens when the sensors and cameras that feed ADAS lose their precise alignment or calibration, so the data they report gradually become less accurate. If a sensor or camera shifts even slightly—often after windshield work, a collision, or mounting issues—the system may misread lane lines, distances, or obstacles. That misreading can cause ADAS features like lane-keeping, automatic braking, or adaptive cruise control to act inappropriately or not work at all. After any service that could disturb sensor position, recalibration is needed to restore accuracy.

This is why describing calibration drift as a misalignment of ADAS sensors or cameras causing incorrect readings fits best. Other options point to issues like tire pressure changes or dashboard battery-related gauge problems, which are unrelated to ADAS calibration drift.