Lane Departure Warning (LDW) / Lane Keep Assist
Informational — For your awareness
What It Means
The lane departure warning or lane keep assist system is active (green) or has a fault (amber). This system uses a forward-facing camera (usually behind the windshield) to detect lane markings.
Common Causes
- Windshield camera area dirty, fogged, or iced over
- Windshield replacement without camera recalibration
- Heavy rain, snow, or fog obscuring lane markings
- Faded or missing lane markings on road
- Camera module fault
- System turned off (check vehicle settings)
Can I Still Drive?
Yes — the vehicle drives normally without this system. It's a driver assistance feature only. Clean the windshield in front of the rearview mirror area.
Estimated Repair Cost
$100 – $1,200
This is an estimate only. Actual costs vary by vehicle make, model, year, location, and shop labor rates. Always get multiple quotes for major repairs.
Related OBD-II Trouble Codes
These OBD codes are commonly associated with this warning light. Scan your vehicle with an OBD-II scanner to get the exact code before diagnosing.