Lexus vehicles use dashboard warning lights to alert the driver to vehicle conditions, safety systems, or possible faults. Some lights are normal status indicators, while others require immediate attention.
| Symbol / Warning Light | Meaning | What to Do |
|---|---|---|
| Check Engine Light | Indicates a problem with the engine, emissions system, or related sensors. | If steady, have the vehicle diagnosed soon. If flashing, stop driving when safe because severe engine damage may occur. |
| Oil Pressure Warning Light | Engine oil pressure is too low. | Stop the engine immediately and check the oil level. Do not continue driving if the light stays on. |
| Battery / Charging Warning Light | The charging system may not be working correctly. | Check the alternator, battery, drive belt, and charging system. |
| Brake Warning Light | May indicate the parking brake is engaged, low brake fluid, or a brake-system fault. | Release the parking brake. If the light remains on, inspect the braking system immediately. |
| ABS Warning Light | The Anti-lock Braking System has detected a fault. | Normal braking may remain available, but ABS may not work. Have the system inspected. |
| Tire Pressure Warning Light | One or more tires may be underinflated, or the TPMS may have a fault. | Check and adjust tire pressures to the Lexus specification. |
| Master Warning Light | Usually appears as a triangle with an exclamation mark and accompanies another warning message. | Read the message on the multi-information display and correct the indicated problem. |
| SRS Airbag Warning Light | A problem may exist in the airbag or seat-belt pretensioner system. | Have the SRS system inspected as soon as possible. |
| Electric Power Steering Warning | A fault has been detected in the electric power steering system. | Steering may become heavier. Stop safely and arrange an inspection. |
| Coolant Temperature Warning | The engine or hybrid system may be overheating. | Stop safely, switch off the vehicle, and allow it to cool before checking coolant. |
| Traction Control / Slip Indicator | Flashes when traction or stability control is actively preventing wheel slip. | Flashing is usually normal. If it remains on, the system may be disabled or faulty. |
| PCS Warning Light | Indicates a problem with the Pre-Collision System or that the system is temporarily unavailable. | Clean sensors/cameras and check the display message. Service may be required. |
| Lane Departure / LTA Indicator | Shows the status of Lane Departure Alert or Lane Tracing Assist. | Usually informational; a warning may mean the system is unavailable or requires attention. |
| Low Fuel Warning Light | Fuel level is low. | Refuel as soon as possible. |
| Seat Belt Warning Light | A driver or passenger seat belt is not fastened. | Fasten all occupied-seat seat belts. |
| Door Open Warning | A door, hatch, or trunk is not fully closed. | Stop safely and close it securely. |
| Hybrid System Warning | On Lexus hybrid models, this may indicate a fault in the hybrid system. | Stop safely if a serious warning message appears and have the vehicle diagnosed. |
Color guide: Red warning lights normally indicate a serious condition requiring immediate attention. Yellow or amber lights usually indicate a fault or maintenance issue that should be checked soon. Green, blue, and white lights are generally status or information indicators.
I’m also generating a labeled reference illustration showing the main Lexus dashboard symbols and their meanings.