What Does Lane Departure Warning / LKA Warning Light Mean?
Reviewed by automotive technicians · Last updated July 13, 2026
Quick Answer
Lane Departure Warning / LKA Warning Light = The Lane Keeping Assist (LKA) / Lane Departure Warning System has detected a fault or is unable to detect lane markings. The system uses a forward-facing camera (mounted at the top of the windshield) to monitor lane position. When the system is disabled, the vehicle will not provide steering corrections or warnings when drifting out of the lane.
Severity: Warning · System: Hyundai Elantra (2017-2025)
DRIVE WITH CAUTION — Repair Soon
The Lane Keeping Assist (LKA) / Lane Departure Warning System has detected a fault or is unable to detect lane markings. The system uses a forward-facing camera (mounted at the top of the windshield) to monitor lane position. When the system is disabled, the vehicle will not provide steering corrections or warnings when drifting out of the lane.
What you see: A car icon with lane departure lines on either side, illuminated orange, sometimes with 'CHECK LKA SYSTEM' or 'LDWS OFF' message on the cluster
What to Do Right Now
If the warning appeared in heavy rain, snow, or on roads without clear lane markings: this is normal — the system disables itself when it cannot see the lanes. Clean the windshield area in front of the camera at the top of the rearview mirror. If the light stays on in clear weather with visible lane markings, restart the engine. If the warning persists after restart, the LKA camera may need recalibration at a Hyundai dealer. The car drives fine — you just lose lane departure warnings and steering assist.
Repair Cost Estimate
| Option | Est. Cost | Notes |
|---|---|---|
| Do It Yourself | $0 (clean windshield camera area); $0 (weather-related — wait for conditions to clear) | If you have basic tools and mechanical knowledge |
| Mechanic / Dealer | $300-600 for Hyundai dealer LKA camera recalibration (required after windshield replacement); $800-1,500 for camera replacement | Includes diagnostic labor + parts |
About This Data
Dashboard warning light information compiled from Hyundai owner's manuals, OEM service documentation, SAE J2402 standards, and NHTSA guidance. This is an independent reference — not affiliated with or endorsed by Hyundai. All brand names, model names, and dashboard symbols are trademarks of their respective vehicle manufacturers.
Published: 2026-07-13 · Repair costs are national averages and vary by location. Always get multiple quotes before authorizing repairs.
⚠️ Red dashboard lights demand immediate action — continued driving may cause engine damage or brake failure. When in doubt, pull over and consult a certified mechanic.
Frequently Asked Questions
Can I drive my Hyundai Elantra with the Lane Departure Warning / LKA Warning Light on?
Yes, but with caution. The vehicle is drivable but lane keeping assist and lane departure warnings are disabled. Pay extra attention to lane position, especially on highway drives.
How much does it cost to fix the Lane Departure Warning / LKA Warning Light on a Hyundai Elantra?
DIY cost estimate: $0 (clean windshield camera area); $0 (weather-related — wait for conditions to clear). Mechanic/dealer estimate: $300-600 for Hyundai dealer LKA camera recalibration (required after windshield replacement); $800-1,500 for camera replacement. Costs vary by location, shop rate, and whether additional components are found to be damaged during diagnosis. Always get 2-3 quotes before authorizing repairs.
What causes the Lane Departure Warning / LKA Warning Light to come on in a Hyundai Elantra?
The LKA camera cannot detect lane markings due to weather, road conditions, or a system fault. Common causes include heavy rain or snow, faded or missing lane markings, dirty windshield in front of the camera, or camera misalignment after windshield replacement. The 2021-2024 Elantra requires LKA recalibration after any windshield replacement.