What does a red dashboard light mean?

Red dashboard lights indicate serious issues that require immediate attention. These include oil pressure, engine temperature, and brake system warnings. Pull over safely and address the issue before continuing to drive.

Can I drive with the check engine light on?

A steady check engine light is usually safe for short drives but should be diagnosed soon. A flashing check engine light indicates a serious problem — reduce speed and have the vehicle checked immediately.

How do I reset dashboard warning lights?

Some lights reset automatically after fixing the issue. Others require an OBD-II scanner to clear the code. Always diagnose and fix the underlying problem before attempting to reset any warning light.

What Does Start-Stop System Warning Light Mean?

Reviewed by automotive technicians · Last updated July 25, 2026

Quick Answer

Start-Stop System Warning Light = The Start-Stop System Warning Light indicates that the automatic engine start-stop system has been disabled or is malfunctioning. This system shuts off the engine at stoplights to save fuel and restarts it when you release the brake. The warning means the system cannot operate — the engine will not auto-stop at idle, resulting in slightly reduced fuel economy.
Severity: Warning · System: Ford F-150/Escape/Explorer (2020-2026)

DRIVE WITH CAUTION — Repair Soon

The Start-Stop System Warning Light indicates that the automatic engine start-stop system has been disabled or is malfunctioning. This system shuts off the engine at stoplights to save fuel and restarts it when you release the brake. The warning means the system cannot operate — the engine will not auto-stop at idle, resulting in slightly reduced fuel economy.

What you see: An icon showing a circled 'A' with an arrow, or the text 'Auto Start-Stop' with a warning indicator on the dashboard

What to Do Right Now

The vehicle is safe to drive — the engine simply will not shut off at stops. This is not a safety issue. Common reasons the system disables itself: battery charge too low, engine not at operating temperature, climate control demand is high, or hood is open. If the warning persists after normal driving conditions, have the system checked at your next service visit.

Repair Cost Estimate

Option	Est. Cost	Notes
Do It Yourself	$0 (system may reset after driving); $100-200 for battery if low charge is the cause	If you have basic tools and mechanical knowledge
Mechanic / Dealer	$100-200 diagnostic; $200-600 if start-stop battery or sensor needs 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: 2026-07-25 · 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.

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Frequently Asked Questions

Can I drive with the Start-Stop System Warning Light on?

Yes — the vehicle drives normally. The engine just won't auto-stop at idle, which slightly reduces fuel economy.

How much does it cost to fix the Start-Stop System Warning Light?

Often resets on its own after driving. If caused by a weak battery: $100-300 for the auxiliary start-stop battery. Sensor replacement: $50-150. No repair needed if the system is disabled due to cold engine or high climate control demand.

Why is my Start-Stop system not working?

The system disables itself when: battery charge is low, engine is cold, outside temperature is extreme, climate control is on max, hood is open, or the vehicle is in 4WD/Low mode. It's normal for the system to be inactive in these conditions.