Yellow or Orange
Check Engine
The engine computer has stored a fault code.
The check engine light indicates that your vehicle's onboard computer has detected a fault in the emissions or engine control system. It is a general warning that the engine is not running at peak efficiency or is producing higher than normal exhaust emissions.
What to do
- 01Verify your gas cap is tightened securely until it clicks.
- 02Pay attention to any unusual sounds, smells, or changes in how the engine feels while driving.
- 03Schedule an appointment at Miles Tech Auto so we can perform a diagnostic scan to read the specific fault code.
- 04Avoid clearing the light yourself, as this removes the data our technicians need to diagnose the issue.
Other common causes
Loose or damaged gas cap, faulty oxygen sensor, worn-out spark plugs, malfunctioning catalytic converter, or a failed mass airflow sensor.
How we check it
Our technicians perform a computerized diagnostic scan to retrieve the trouble codes and identify the underlying fault.
Symbols vary by make and model — always confirm in your owner's manual. If the light is red, the car feels different, or the light is blinking, stop and call us before driving further.