Yellow or Orange
Service Engine Soon
An emissions or drivability fault is logged.
The Service Engine Soon light indicates that the vehicle's onboard computer has detected an issue with the engine, fuel system, or emissions control. It is a general alert meant to notify you that the car's performance or efficiency is being affected.
What to do
- 01Check your gas cap to ensure it is tightened properly as a loose cap often triggers this light.
- 02Pay attention to any unusual engine noises, vibrations, or changes in how the vehicle drives.
- 03Contact Miles Tech Auto to schedule a time for a diagnostic scan to read the specific trouble codes.
Other common causes
Common causes include a faulty oxygen sensor, a failing catalytic converter, a worn-out spark plug, or a malfunctioning mass airflow sensor.
How we check it
Our technicians will perform a comprehensive diagnostic scan to identify the specific error code and inspect related engine systems for any active faults.
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.