Diagnostic Aids

Automatic High Beam Assist 

The Automatic High Beam Assist (AHBA) is on anytime the headlamp switch is in the AUTO position. The AHBA system consists of a front camera module that detects light, and is able to identify approaching vehicles on an even, straight road at a distance of greater than 0.4 km (0.25 mi). The front camera module analyzes light color, intensity, and movement. The AHBA system will turn OFF the high beam headlamps when approaching vehicle headlamps or preceding vehicle taillights are detected by the front camera module. The AHBA system is turned off anytime the turn signal/multifunction is in the high beam position, the front or rear for lamps are turned on, or the headlamp switch is moved out of the AUTO position. For front camera diagnostic information, refer to Forward Collision Alert System Malfunction