Auto Start-Stop Not Working? Here’s Why (Fix Guide – UAE)
When your auto start-stop system suddenly stops working, it’s not just annoying—it can indicate underlying issues in your vehicle. In this UAE-focused guide, we’ll uncover why this feature fails, whether it’s due to extreme temperatures, battery issues, or a simple sensor glitch. Plus, we’ll show you how to fix it yourself—without a trip to the mechanic.
Common Reasons Why Auto Start-Stop Stops Working
- Battery health: If you have a weak or incorrect battery (like using a standard instead of EFB/AGM), the system won’t activate. Compare battery types here.
- UAE heat: Extreme temperatures over 40°C often force the system to shut down to protect the engine.
- Brake pedal sensor: Faulty brake or clutch sensors can block the system from engaging.
- Low engine temperature: The feature only activates once your engine is warmed up.
- Hood or doors ajar: If the hood or any door is slightly open, the system is disabled for safety.
How to Diagnose and Fix the Issue
- Check the battery voltage using a multimeter. Anything below 12.4V could be a red flag.
- Close all doors and the hood securely—even a slight gap disables the system.
- Start your engine and wait 10–15 minutes for it to warm up before expecting the system to kick in.
- If your dashboard shows a start-stop warning light, try resetting it here.
- Still not working? Read what your warning light means.
Should You Be Worried?
No, the feature is fuel-saving but not critical to engine performance. However, if the problem persists, it could signal a deeper issue—like software miscalibration or failing sensors.
Related Help Guides
- How to Permanently Disable Start-Stop System
- Does Auto Start-Stop Drain Your Battery?
- Step-by-Step Reset Guide
