Auto Start-Stop Indicator
Shows start-stop system status: engine auto-off active, unavailable, or (amber) a system fault.
What it means
Green/white typically means the start-stop system is active or ready — the engine shuts itself off at standstill to save fuel. The system stands down (light off or crossed out) when the battery is low, the A/C demand is high, or the engine is cold. A steady amber light with a fault message means the system itself has a problem.
Can you keep driving?
Yes in all cases. The car drives normally whether the system works or not; a fault just means the engine won't auto-stop.
What to do now
- 1
Nothing, if it's a status light — the system manages itself.
- 2
If start-stop stopped working after a battery replacement, the new battery may need registration/coding.
- 3
An amber fault light warrants a scan, but it's a convenience system, not a drivability issue.
Likely causes
- • Normal status display
- • System disabled: low battery charge, extreme temperatures, high A/C load, steering turned
- • Fault (amber): weak battery, hood-open switch, or sensor issue
Typical fix cost
$0 for normal status; a weak battery causing faults runs $150–$300
Ranges reflect mainstream US parts-and-labor pricing; your vehicle and region will vary.