50 Car Dashboard Warning Lights Explained: What They Mean and What to Do (Guide)part 5

31. Engine Air Filter Warning Light

This warning indicates that the engine air filter may be dirty or clogged, reducing engine performance and fuel efficiency.

What to do:
  • Inspect the air filter.
  • Replace it if it is dirty or blocked.
  • Follow the replacement interval in your owner's manual.

32. Brake Pad Wear Warning

This light means your brake pads have worn down and should be replaced soon.

What to do:
  • Schedule a brake inspection immediately.
  • Replace worn brake pads before they damage the brake discs.

33. Automatic Transmission Fault Warning

This warning appears when the transmission control system detects a problem.

Possible causes:
  • Low transmission fluid
  • Faulty transmission sensor
  • Internal transmission damage
What to do:

Avoid hard acceleration and have the vehicle inspected by a qualified mechanic as soon as possible.

34. Four-Wheel Drive (4WD) Warning Light

This warning appears on SUVs and pickup trucks equipped with four-wheel drive.

What it means:
  • 4WD system malfunction
  • Transfer case issue
  • Electronic control fault
What to do:

Drive normally if possible, but have the 4WD system checked before using it off-road.

35. Low Engine Power Warning

This warning indicates the vehicle has entered "limp mode" to protect the engine.

Possible causes:
  • Engine sensor failure
  • Turbocharger problem
  • Fuel system fault
What to do:

Drive slowly to a safe location or repair shop. Avoid high speeds and heavy acceleration.

36. Catalytic Converter Warning

This warning indicates a possible problem with the emissions control system.

Possible causes:
  • Engine misfire
  • Damaged catalytic converter
  • Oxygen sensor failure
What to do:

Have the vehicle diagnosed promptly to prevent expensive repairs and increased fuel consumption.

37. Steering Lock Warning

This warning shows that the electronic steering lock system has detected a fault.

What to do:
  • Turn the steering wheel gently while pressing the start button.
  • If the warning remains, seek professional assistance.

38. Suspension System Warning

This warning appears on vehicles equipped with electronic or air suspension.

Possible causes:
  • Air suspension leak
  • Faulty height sensor
  • Suspension compressor failure
What to do:

Drive carefully over bumps and have the suspension system inspected as soon as possible.

39. Automatic Headlight Warning

This light indicates that the automatic headlight system has a fault.

What to do:

Switch your headlights on manually and have the lighting system checked if the warning stays on.

40. Parking Sensor Warning

This warning indicates a fault with the parking assistance sensors.

Possible causes:
  • Dirty sensors
  • Damaged sensor
  • Electrical fault
What to do:

Clean the parking sensors first. If the warning continues, have the system inspected by a technician.

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