Side Assist

Side Assist

• Before troubleshooting or servicing, technicians must be familiar with the function and operation of Side Assist lane change assistance.

• For additional information, --> Operating instructions.

General Description:

Side Assist lane change assistance supports the driver with the help of radar sensors in the rear bumper cover that monitor the blind angle and traffic behind the vehicle. Displays are installed on the inner side of the exterior rearview mirror housing. They inform the driver in two levels if Side Assist has detected a vehicle on that side and if the vehicle is critical for a lane change. In the "Information level", the displays in the exterior mirrors illuminate and inform the driver that Side Assist has detected a vehicle on that side and that it is critical to a lane change. If the turn signal is activated during the information stage, lane change assistance switches to the "warning stage" and respective display in the exterior mirror blinks rapidly and brightly.

Side Assist is operated using the assistance systems button in the turn signal lever and the instrument cluster display. While driving, important information is shown in the instrument cluster display.

DTC recognition and display:

Side Assist lane change assistance is equipped with OBD that facilitates fault finding.

For troubleshooting, use Vehicle Diagnostic, Testing and Information System (VAS 5051A) in operating mode " Guided Fault Finding".

To check the complete Side Assist lane change assistance system, perform output diagnostic test mode --> [ Lane Change Assistance Control Module Output Diagnostic Test Mode ] Initial Inspection and Diagnostic Overview.

Side Assist lane change assistance system components:

• Lane Change Assistance Control Module (J769) with radar sensor behind bumper cover in rear of vehicle

• Lane Change Assistance Control Module 2 (J770) with radar sensor behind bumper cover in rear of vehicle

• Lane Change Assistance Warning Lamp (in driver's exterior mirror) (K233)

• Lane Change Assistance Warning Lamp (in front passenger's exterior mirror) (K234)