The check engine light (CEL) illuminates when the vehicle's onboard diagnostic system detects a malfunction. It can indicate anything from a loose gas cap to a serious engine problem.
🚗 Can You Continue Driving?
Usually yes, but visit mechanic soon. Flashing light means stop immediately.
🔧 Repair Difficulty
Medium
⚠️ Possible Causes
Loose or missing gas cap
oxygen sensor failure
catalytic converter issues
spark plug or wire problems
mass airflow sensor failure
✅ Recommended Actions
1Check if gas cap is tight first.
2Visit a mechanic to read diagnostic codes with an OBD-II scanner.
3Do not ignore if the light is flashing.
🚗 Common in These Vehicles
Related Symbols
Engine Temperature Warning
Engine is overheating. Stop driving immediately to prevent severe damage.
Immediate ActionOil Pressure Warning
Critical low oil pressure. Stop the engine immediately.
Immediate ActionPower Steering Warning
Power steering system fault. Steering will require more effort.
Attention RequiredGlow Plug Warning (Diesel)
Diesel engine glow plug system fault.
Attention Required