2016 Chevrolet Volt Has A Check Engine Light

Resolve Check Engine Light Issues in Your 2016 Chevrolet Volt

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Reviewed by
Aisha
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 2016 Chevrolet Volt 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 2016 Chevrolet Volt 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.

A faulty oxygen sensor is one of the most common causes of a check engine light. Symptoms may include a decrease in fuel mileage, hesitation or misfiring from the engine, rough idling or even stalling. A faulty sensor may cause the vehicle to fail an emissions test.

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 are the initial diagnostic steps to take for a check engine light on a 2016 Chevrolet Volt?

When faced with a check engine light on your 2016 Chevrolet Volt, it's essential to adopt a methodical diagnostic approach. Start by checking the gas cap; a loose or damaged cap is a common culprit that can easily trigger the light. Next, take a moment to inspect your dashboard for any additional warning lights or messages that might offer further insight into the issue. Utilizing an OBD-II scanner is a crucial step, as it allows you to retrieve error codes from the vehicle's computer, providing specific information about potential problems. Additionally, examine the condition of your spark plugs, as worn or faulty plugs can also activate the check engine light. Don't overlook the battery; ensure it is functioning properly, as a weak battery can lead to various electrical issues. Finally, check the levels of essential fluids like oil and coolant, as low levels can cause engine performance problems that may trigger the warning light. By following these steps, you can effectively narrow down the cause of the check engine light and take appropriate action to resolve the issue.

What are the common problems that could cause the check engine light to illuminate in a 2016 Chevrolet Volt?

When the check engine light comes on in your 2016 Chevrolet Volt, it can be a source of concern, but understanding the common problems can empower you to take action. One frequent culprit is a loose gas cap, which can easily be checked and tightened to potentially resolve the issue. Another common problem is a faulty oxygen sensor, which not only triggers the light but can also affect your vehicle's fuel efficiency. If you notice a decrease in performance, it may be worth inspecting the catalytic converter, as issues here can lead to significant engine problems. Additionally, worn-out spark plugs can cause misfires, while a malfunctioning mass airflow sensor can disrupt the air-fuel mixture, both of which will illuminate the check engine light. Lastly, a failing ignition coil can lead to poor engine performance and should be checked if the light remains on. By addressing these issues promptly, you can maintain your Volt's performance and efficiency, but if the light persists, consulting a qualified mechanic is advisable for a thorough diagnosis.

How urgent is it to address the check engine light in a 2016 Chevrolet Volt?

When the check engine light comes on in your 2016 Chevrolet Volt, it serves as a critical warning that should not be ignored. The urgency of this alert can vary based on the underlying issue, but neglecting it can lead to serious consequences, including safety risks and costly repairs. For DIY enthusiasts, it’s essential to understand that while some problems may be minor, such as a loose gas cap, others could indicate significant issues like a malfunctioning catalytic converter or ignition coil. Ignoring these warnings can exacerbate the problem, potentially leading to engine damage or decreased performance. Therefore, it is advisable to conduct a preliminary diagnostic check using an OBD-II scanner to identify the specific trouble codes. This proactive approach not only helps in understanding the severity of the issue but also aids in making informed decisions about whether to attempt repairs yourself or seek professional assistance. Ultimately, addressing the check engine light promptly is vital for maintaining the health of your vehicle and ensuring a safe driving experience.

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2016 Chevrolet Volt Check Engine Light: Causes & Solutions