What Does Lane Keeping Alert / Lane Departure Warning Light Mean?
Reviewed by automotive technicians · Last updated August 22, 2026
Quick Answer
Lane Keeping Alert / Lane Departure Warning Light = The Lane Keeping System (LKA) 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 wheel vibrations or steering corrections when drifting out of the lane. The Ford Edge also has a 'Lane Keeping Alert' that flashes the warning light when you unintentionally drift out of your lane without using a turn signal.
Severity: Warning · System: Ford Edge (2015-2025)
DRIVE WITH CAUTION — Repair Soon
The Lane Keeping System (LKA) 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 wheel vibrations or steering corrections when drifting out of the lane. The Ford Edge also has a 'Lane Keeping Alert' that flashes the warning light when you unintentionally drift out of your lane without using a turn signal.
What you see: A car icon with dashed lane markings on either side, illuminated orange, sometimes with 'Lane Departure Warning' or 'LKA' message on the instrument cluster
What to Do Right Now
If the warning appeared in heavy rain, snow, fog, or on roads with faded or missing 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 Ford dealer, especially if the windshield was recently replaced. 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 Ford 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 Ford owner's manuals, OEM service documentation, SAE J2402 standards, and NHTSA guidance. This is an independent reference — not affiliated with or endorsed by Ford. All brand names, model names, and dashboard symbols are trademarks of their respective vehicle manufacturers.
Published: 2026-08-01 · 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.
By Patricia N. Simmons — Automotive Electronics Specialist
Patricia has spent 12 years researching instrument cluster diagnostics and dashboard warning light systems across 20+ automotive brands. She has analyzed over 500 OEM owner's manuals and SAE standards to compile this reference. Her experience includes field diagnostics with certified technicians, cross-referencing NHTSA technical service bulletins, and building practical decision guides that help drivers understand exactly what each warning light means — and whether they should keep driving or pull over immediately.
About Patricia · Published: 2026-08-01 · Updated: August 22, 2026
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Frequently Asked Questions
Can I drive my Ford Edge with the Lane Keeping Alert Light on?
Yes — the vehicle is drivable but lane keeping assist and lane departure warnings are disabled. Pay extra attention to lane position, especially on highway drives. The system will typically re-enable itself when weather or visibility conditions improve.
How much does it cost to fix the Lane Keeping Alert Light on a Ford Edge?
DIY cost: $0 (clean windshield camera area). Mechanic estimate: $300-600 for Ford dealer LKA camera recalibration; $800-1,500 for camera replacement. Ford requires LKA recalibration after any windshield replacement on Edge models equipped with the technology.
What causes the Lane Keeping Alert Light to come on in a Ford Edge?
The #1 cause is a dirty or obstructed windshield area in front of the camera. Other causes: heavy rain, snow, or fog; faded or missing lane markings; aftermarket windshield tint or non-OEM windshield glass; or camera misalignment after windshield replacement. The 2015-2020 Edge has a known TSB for LKA camera calibration issues after windshield replacement.