Some models allow a that doesn't require physical targets.

: Performed in a service center using specialized calibration mats placed around the vehicle. Hardware Check

: If you recently replaced a windshield or a mirror, the code might be permanent until a static or dynamic calibration is performed using professional software. 5. When to See a Professional

(backup battery or HERMES unit). The free methods have exhausted their potential.

This is the most common fix and requires a diagnostic scanner (like Autel Maxisys : Drive the vehicle between 3 and 30 mph on a flat road with clear markings (white lines).