INDEPENDENT REFERENCE
Check engine light
Driver guidance · CAUTION — symbol color, meaning and urgency can differ by vehicle
What the symbol may mean
Steady lamp means engine/emissions diagnostics detected a monitored condition; flashing may indicate a severe misfire.
What to do now
If flashing, reduce load, stop safely and arrange assistance. For a steady lamp, note symptoms and obtain a diagnostic code read promptly.
What a technician may check
Scan stored DTCs and freeze-frame data; never infer a repair solely from the lamp.
Always follow the exact vehicle handbook; colored lamps and warning behavior vary across models. A serious vehicle fault should not be cleared or driven through without inspection.