Check Engine Light On – No Other Symptoms
The check engine light is illuminated on a 2021 Tesla Model Y with no other symptoms reported. This typically indicates a non-critical issue that still requires diagnosis to prevent potential drivability or emissions problems.
Diagnosis Details
Possible Causes
Loose or faulty gas cap (if applicable, though Tesla is electric, this may be a misdiagnosis; for EVs, often a sensor or software glitch)
Faulty oxygen sensor or emissions system component (for EV, this is unlikely; more likely a thermal or battery management sensor)
Software update needed or temporary glitch in the vehicle's diagnostic system
Related OBD-II Codes
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What You Should Do
Check the Tesla mobile app for any pending software updates or notifications.
Schedule a service appointment with Tesla to have the diagnostic trouble codes read.
If the light is flashing, stop driving immediately and contact roadside assistance.
Estimated Repair Cost
$0–$200 for diagnostic scan (often free at Tesla service center); repairs vary based on cause.
Typical range: $0 – $200
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Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.