The lane departure alert system operates using systems shared with the pre-crash safety system. When a malfunction is detected in the pre-crash safety system, a malfunction also occurs in the lane departure alert system.
Check the DLC3.
FUNCTION OF WARNING INDICATOR AND MESSAGE
Turn the power switch off. Wait for at least 2 seconds, and then turn the power switch on (IG). Lane departure alert system diagnosis is performed for approximately 5 seconds.
If a malfunction is detected during the initial check, "Check LDA system" is displayed on the multi-information display in the combination meter assembly 5 seconds after the initial check completes.
"Check LDA system" is displayed when a DTC is stored due to the detection of a malfunction.