2017 Tesla 3 Has A Check Engine Light

Troubleshooting the Check Engine Light in Your 2017 Tesla Model 3: Common Causes and Solutions

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
40% chance it's the
Emissions System
0%
60% chance it's
Something else
The most common reasons a 2017 Tesla 3 has a check engine light are an emissions system component, a sensor, or a catalytic converter.
  • Emissions System: A faulty emissions system component, such as an oxygen sensor or EGR valve, can lead to increased emissions and trigger the check engine light.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2017 Tesla 3 has a check engine light?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

Like we noted in the last section, general diagnosis symptoms are the most vague of the bunch. There are several diagnostic spectrums, electrical diagnosis, drivability diagnostics, engine diagnostics, transmission diagnostics, and the list could continue for about 5 or 10 more spectrums of diagnostics. The most important take-away here, is that general diagnostics are diagnostics that have no other spectrum in which they fit, or the problem is unknown. This means that any vehicle left outside of a repair facility with the keys and an authorization to perform diagnosis will be diagnosed under the general diagnosis spectrum.

When the Check Engine Light comes on, you may experience engine performance issues such as poor acceleration, rough idling, or an engine that won't start. In some cases, no abnormal symptoms will be experienced. Other systems like the transmission or ABS can cause the Check Engine Light to illuminate and lights for those systems can come on at the same time. Similar lights may say "Check Engine Soon", "Malfunction Indicator Light" or just "Check". In rare case the engine can overheat.

What are the steps to diagnose the check engine light issue in a 2017 Tesla 3?

To effectively diagnose a check engine light issue in your 2017 Tesla Model 3, begin by assessing any immediate concerns. If the light is flashing, this signals a critical problem that necessitates pulling over and turning off the vehicle to avoid further damage. Next, utilize an OBD-II scanner to access the onboard diagnostic system, which will provide error codes that pinpoint the issue. After retrieving these codes, consult your owner's manual or reach out to Tesla service for guidance on their meanings. This step is crucial as it helps you identify whether the problem is related to common issues such as the battery, charging system, or sensors. If you find that the error codes indicate a more complex issue or if you are unable to diagnose the problem yourself, it is wise to schedule a service appointment with a Tesla technician who can provide expert assistance. By following this structured approach, you can efficiently troubleshoot the check engine light and take the necessary steps to resolve the issue.

What are the common problems that could cause the check engine light to activate in a 2017 Tesla 3?

When the check engine light illuminates in a 2017 Tesla Model 3, it can signal a range of common issues that DIY enthusiasts should be aware of. One frequent culprit is a software glitch within the vehicle's computer system, which can often be resolved with a simple software update. Another common issue is a faulty oxygen sensor, which plays a crucial role in monitoring exhaust emissions; replacing this sensor can restore proper function. Additionally, a loose or damaged gas cap can lead to fuel vapor leaks, triggering the light, and is an easy fix that requires no special tools. Problems with the catalytic converter, such as inefficiency or failure, can also activate the check engine light, indicating a need for more in-depth diagnostics. Other potential issues include a malfunctioning mass airflow sensor, which affects fuel efficiency, worn-out spark plugs that can cause engine misfires, and battery problems that may indicate low voltage or a failing battery. Addressing these issues promptly is essential to maintain the vehicle's performance and prevent further damage, making it advisable for DIYers to familiarize themselves with these common problems and consider seeking professional help if needed.

How urgent is it to address the check engine light on a 2017 Tesla 3?

Addressing the check engine light on a 2017 Tesla Model 3 is crucial for maintaining the vehicle's overall health and safety. This warning light is not just a minor inconvenience; it serves as an early detection system for potential engine issues or other critical component failures. Ignoring it can lead to a cascade of problems, including decreased performance and reduced fuel efficiency, which can significantly impact your driving experience. Moreover, some underlying issues may pose serious safety risks, making it imperative to investigate the cause of the warning light without delay. By taking prompt action, you not only safeguard your vehicle's performance but also prevent minor issues from escalating into costly repairs. Therefore, it is essential to prioritize addressing the check engine light to ensure your Tesla Model 3 remains in optimal condition and to protect both your investment and your safety on the road.

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