High Beam Assist

High Beam Assist

• Familiarity with the function and operation of the high beam assist is essential when addressing complaints.

• Additional information:

• Refer to the Owner's Manual.

The high beam assist turns the high beams on and off automatically depending on the surrounding traffic conditions and the vehicle speed. The light recognition sensor (G399) inside the rearview mirror base and the automatic high beam control module (J844) inside the interior rearview mirror control it.

To activate the high beam assist, turn on the ignition, turn the headlamp switch to AUTO and move the turn signal lever to the high beam position. The high beam assist will switch off when the ignition is turned off.

The high beam assist may not switch off at the right time or not at all under the following conditions:

• On poorly lit streets with street signs that are highly reflective

• Other motorists, pedestrians, bicyclists not easily seen

• Narrow curves, on-coming traffic partially covered, steep hills

• On-coming vehicles on streets with a center barrier, when the driver can see clearly over the barrier, for example, truck drivers

• Faulty camera and interrupted power supply

• Fog, snow and heavy rain

• Dust and sand

• Stone chips in the vision range of the sensor

• The vision range of the sensor is fogged up, dirty or covered by a sticker, snow or ice

DTC Recognition and Display

The high beam assist has OBD.

When performing Fault Finding, use vehicle diagnostic tester in the function "Guided Fault Finding".