Lane Departure / Lane Keep Warning
The camera thinks you are drifting out of your lane without signaling — or the driver-assist system is unavailable.
What it means
A flashing lane symbol with a chime or steering nudge is the system warning about unintentional drift — a useful prompt to reassess fatigue. A steady amber symbol often means the camera is blocked (dirty windshield, snow, direct glare) or the system is switched off.
Can you keep driving?
Yes. Lane-keeping is an assist, not a substitute for attention. If the system is unavailable, clean the windshield area in front of the rear-view mirror where the camera sits.
What to do now
- 1
If you got a drift warning, treat it as a fatigue cue — consider a break.
- 2
Clean the windshield in front of the camera housing.
- 3
After a windshield replacement, have the camera calibrated per the glass shop's guidance.
Likely causes
- • Unsignaled lane drift (the warning doing its job)
- • Camera blocked by dirt, snow, or glare
- • System switched off
- • Calibration fault after windshield replacement
Typical fix cost
$0 to clean the windshield; $150–$500 for camera recalibration
Ranges reflect mainstream US parts-and-labor pricing; your vehicle and region will vary.