What it means
The vehicle cannot detect a key it expects to find, so it may refuse to start or may warn that the key is outside the cabin. Red commonly signals an immediate starting or security issue, but the colour and exact behaviour vary by manufacturer.
What the symbol looks like: A key fob outline, sometimes with a question mark or signal marks, commonly indicates that the key is not detected.
Why it comes on
- The key is outside the vehicle or not in the cabin
- A weak key fob battery
- Radio interference near the key or vehicle
- A damaged or incompatible key
- A fault in the vehicle's keyless-entry antenna or system
What to do
- Make sure the key is inside the vehicle and away from metal objects or other electronics.
- Try the spare key if available.
- Follow the owner's manual instructions for starting when the key battery is weak.
- Replace the fob battery with the type specified in the manual.
- If the key still is not recognised, contact roadside assistance or a qualified repairer.
Can I keep driving?
If the engine is running, the vehicle may continue moving, but it might not restart after you switch it off. Avoid stopping somewhere unsafe and arrange help if the warning persists.
Symbols and colours differ between makes and models. Your owner’s manual shows the exact lights of your car.