2017 Buick Envision Has A Check Engine Light

Troubleshooting the Check Engine Light in Your 2017 Buick Envision: Common Causes and Solutions

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Reviewed by
Bo Fader
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 Buick Envision 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 Buick Envision 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.

Any time there is an emissions fault the check engine light will be displayed. The purpose of the check engine light is to inform the driver that an emission related fault has been found, and that there are on-board diagnostic (OBD) trouble codes stored in the powertrain or engine control module. Additionally, since the emissions systems are so intertwined into engine control and transmission control systems, symptoms may include nearly any sort of drivability concerns. This may include harsh shifting, failure to shift, hesitation on acceleration, jerking, engine failure to start or run, loss of power, or any number of other drivability issues.

Due to the nature of electrical systems on modern vehicles, the range of problems these can cause are nearly limitless. However, there is a way to categorize them in two ways. Permanent and intermittent problems. Permanent problems appear and remain. This may be the vehicle will not start, the radio does not work, or the door chime will not turn off among many, many others. These problems are more straight-forward to diagnose since they present themselves at all time. This means there will always be a fault to find. Intermittent electrical problems, however, can be difficult or impossible to locate, since they appear then disappear without warning. The best case scenario for an intermittent issue is when replicating the problem is easily accomplished and understood. This allows a technician to make an issue semi-permanent, allowing them to find the fault. Other issues that come and go without warning and cannot be replicated on demand must occur when the technician is servicing the vehicle, otherwise there is no problem to correct. It is most important to understand that electrical system faults always require inspection, and can include the vehicle working in any manner, or not working at all.

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 steps should I take to diagnose the check engine light on my 2017 Buick Envision?

When diagnosing the check engine light on your 2017 Buick Envision, it's essential to adopt a systematic approach that prioritizes simpler solutions before delving into more complex diagnostics. Start by visually inspecting the gas cap, as a loose or damaged cap is a common and easily fixable issue that can trigger the light. Next, utilize an OBD-II scanner to connect to your vehicle's diagnostic port; this tool will provide you with specific error codes that indicate the nature of the problem. Once you have the error code, research its meaning through your vehicle's manual or reputable online resources to gain insight into the potential issue. Additionally, pay attention to any other warning lights on your dashboard, as they may offer further clues. It's also wise to check the levels of essential fluids like oil and coolant, as low levels can sometimes cause the check engine light to illuminate. If these steps do not lead to a clear diagnosis or if the problem appears to be more complex, seeking assistance from a qualified mechanic or dealership is advisable to ensure your vehicle receives the proper care. By following this structured diagnostic approach, you can effectively identify and address the cause of the check engine light in your Buick Envision.

What are the common problems that could cause the check engine light to illuminate in a 2017 Buick Envision?

When the check engine light comes on in a 2017 Buick Envision, it can be a source of concern for any driver. One of the most straightforward issues to check is the gas cap; a loose or damaged cap can easily trigger the light, and simply tightening or replacing it may resolve the problem. Another common culprit is the oxygen sensor, which plays a crucial role in monitoring fuel efficiency and emissions. If this sensor is faulty, it can lead to increased fuel consumption and should be replaced to restore optimal performance. Additionally, problems with the catalytic converter can also illuminate the check engine light, often indicating a failure that requires professional attention. Engine misfires caused by worn or faulty spark plugs are another frequent issue, as they can disrupt engine performance and trigger the warning light. Furthermore, a malfunctioning mass airflow sensor can affect the air-fuel mixture, leading to potential engine issues, while a failing ignition coil can result in poor engine performance and should be inspected. Understanding these common problems can empower DIY enthusiasts to troubleshoot effectively, but for accurate diagnosis and repair, consulting a qualified mechanic is always recommended.

How urgent is it to address the check engine light in a 2017 Buick Envision?

When the check engine light illuminates in your 2017 Buick Envision, it is essential to recognize the urgency of the situation. This warning indicator is not merely a nuisance; it signifies potential issues within the engine or emissions system that could compromise your vehicle's performance and efficiency. Ignoring this alert can lead to escalating problems, resulting in costly repairs or even a breakdown. For those inclined to take a DIY approach, understanding the implications of neglecting the check engine light is crucial. Early intervention can help you identify and resolve underlying issues before they escalate, ensuring your vehicle remains safe and reliable. While some minor issues may be manageable at home, it is advisable to consult a qualified mechanic or dealership for a thorough diagnosis. This proactive step not only protects your investment but also enhances your driving experience by maintaining the vehicle's optimal functionality.

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2017 Buick Envision Check Engine Light Causes & Solutions