When your Chevy Volt starts acting up, it’s time to get proactive. You’ll want to pinpoint the issue quickly to avoid further damage or inconvenience. Start by categorizing the problem: is it related to battery and charging, electrical system faults, infotainment glitches, brake and engine performance, or something else? Take a closer look at the “Energy” screen for clues about battery health, and inspect those charging cord connections. But that’s just the beginning – there’s more to investigate to get your Volt running smoothly again.

Contents
- Battery Degradation and Charging Issues
- Electrical System Faults and Warning Lights
- Reduced Gasoline Engine Performance and Maintenance
- Brake Noise or Vibration and Regenerative Braking
- Coolant System Issues and Overheating
- Software and Infotainment System Glitches
- Vehicle Information and Symptoms for Diagnosis
- Troubleshooting and Diagnostic Tools
- Common Fixes and Replacement Parts for the Chevy Volt
- Frequently Asked Questions
- Conclusion
Battery Degradation and Charging Issues
Your Chevy Volt’s battery is its most critical component, and degradation or charging issues can significantly impact its overall performance and fuel efficiency.
As you drive, your Volt’s battery cells naturally degrade, reducing their capacity and overall range.
Check your Volt’s battery health by accessing the “Energy” screen on the center console. If you notice a significant drop in range or battery capacity, it may indicate a charging issue.
Verify your charging cord is securely plugged in, and the charging station is functioning correctly. Faulty charging stations or corroded charging ports can cause issues, so inspect these components regularly to guarantee their proper functioning.
Electrical System Faults and Warning Lights
When you notice warning lights on your Chevy Volt‘s dashboard, it’s essential to identify the underlying electrical system fault.
You’ll need to use an OBD-II scanner to retrieve diagnostic trouble codes, which will help you pinpoint the issue, whether it’s related to the battery management system, traction power inverter, or hybrid powertrain control module.
Diagnosing Electrical Issues
The Chevy Volt’s sophisticated electrical system can be prone to faults and warning lights, which often trigger error messages or illuminate dashboard lights.
When diagnosing electrical issues, use diagnostic tools like an OBD-II scanner to check for diagnostic trouble codes. Verify the 12V auxiliary battery is healthy, as a weak battery can trigger electrical faults.
If you’re unsure, schedule an inspection with a hybrid specialist to identify and resolve the issue. Regular maintenance, such as following the recommended schedule and keeping software up to date, can help guarantee electrical system faults and warning lights from occurring.
Error Code Troubleshooting
To efficiently troubleshoot electrical system faults and warning lights in your Chevy Volt, you’ll need to decode the error messages and diagnose the root cause.
Use an OBD-II scanner to check for diagnostic trouble codes and verify the 12V auxiliary battery is healthy. Regularly inspect the charging port and cooling system components to prevent electrical faults.
If you encounter error codes like U183E, use a BlueDriver and service manual to diagnose the issue. Faulty components like the voltage sensing interface module (VCIM) can cause electrical system faults, and replacing it may resolve issues like hands-free and Bluetooth problems.
System Failure Causes
Several electrical system faults can trigger warning lights or error messages in your Chevy Volt, necessitating prompt attention to prevent system failure.
Faulty components, like the Vehicle Communication Interface Module (VCIM), can cause issues like hands-free and Bluetooth connectivity problems. Ignoring these faults can lead to more severe problems, including system failure.
To prevent this, guarantee your 12V auxiliary battery is healthy and schedule an inspection with a hybrid specialist if you notice warning lights or error messages. By addressing these issues promptly, you can guarantee system reliability and keep your Volt running smoothly.
Reduced Gasoline Engine Performance and Maintenance
When you notice reduced performance from your Chevy Volt’s gasoline engine, it’s essential to check the basics first.
You should regularly inspect and replace the engine oil and air filter to guarantee peak engine performance and efficiency.
Additionally, spark plug issues can cause performance problems, so be sure to inspect and address them promptly to prevent further complications.
Engine Oil Checks
Your Chevrolet Volt’s gasoline engine relies heavily on regular engine oil checks to maintain its performance and efficiency.
You should check the engine oil level regularly, as low levels can cause engine damage and lead to reduced performance and fuel efficiency.
The recommended oil change interval is every 5,000 to 7,500 miles, depending on driving conditions and the type of oil used.
Using high-quality synthetic oil can improve engine performance and fuel efficiency, especially in extreme temperatures.
Failure to regularly check and replace the engine oil can lead to premature wear on engine components, resulting in costly repairs.
Air Filter Replacement
The air filter in your Chevy Volt plays a critical role in maintaining peak gasoline engine performance, and regular replacements are essential to prevent decreased fuel efficiency, reduced engine power, and even engine stalling.
You should inspect the air filter every 15,000 miles and replace it if it’s dirty or shows signs of wear. Failure to do so can lead to decreased engine performance, reducing electric range and increasing fuel consumption.
Use a high-quality air filter that meets or exceeds OEM specifications to guarantee superior engine performance and fuel efficiency. Replace it every 15,000 to 30,000 miles for best results.
Spark Plug Issues
Regular maintenance of your Chevy Volt’s air filter helps prevent decreased fuel efficiency and reduced engine power, but it’s not the only component that requires attention.
Spark plug issues can significantly impact your vehicle’s performance. Using high-quality fuel and regularly checking engine oil can help prevent spark plug fouling. However, spark plug replacement is still necessary every 60,000 to 100,000 miles.
Ignoring spark plug issues can lead to engine misfires, decreased fuel efficiency, and even catalytic converter damage. Use an OBD-II scanner to diagnose spark plug issues and address them promptly to avoid costly repairs.
Brake Noise or Vibration and Regenerative Braking
When you press the brake pedal in your Chevy Volt, you expect a smooth, quiet stop.
However, you may experience brake noise or vibration, which can be caused by worn-out brake pads or rotors. The regenerative braking system, designed to reduce wear on traditional brakes, can sometimes contribute to this issue.
To troubleshoot, inspect your brake pads and rotors for wear and tear. Verifying the regenerative braking system is functioning correctly can help resolve brake noise or vibration issues.
Regular brake pad and rotor inspections can prevent these issues and guarantee a smoother driving experience.
Coolant System Issues and Overheating
You’ve verified your Chevy Volt’s brakes are functioning smoothly, now it’s time to focus on another critical system: the coolant system.
Check the coolant level, ensuring it’s within the recommended range. Inspect the hoses and connections for signs of damage, corrosion, or leaks.
Look for symptoms of overheating, such as a temperature gauge in the red zone or a “Check Engine” light.
If you notice any issues, consult your owner’s manual or a repair manual for guidance on diagnosing and repairing coolant system problems. Remember to always follow proper safety procedures when working with the coolant system.
Software and Infotainment System Glitches
The Chevy Volt’s advanced software and infotainment system can sometimes experience glitches, which can be frustrating and affect your overall driving experience.
To troubleshoot these issues, try the following:
- Perform a system reset or reboot the infotainment system to resolve software glitches.
- Check for and install software updates via a dealership or online resources to address inaccurate range estimates.
- Consult a certified technician to address deeper software issues with your infotainment system.
Remember to install software updates promptly to address known issues and improve system performance, as well as prevent software and infotainment system glitches.
Vehicle Information and Symptoms for Diagnosis
To diagnose the issues with your 2012 Chevy Volt, it’s essential to gather detailed information about the vehicle’s symptoms and usage patterns.
With over 150,000 miles, your Chevrolet Volt has been primarily used in engine-only mode with intermittent battery-only usage, following a pattern of 2-3 days without charging and 2-3 days of battery-only use.
You’ve experienced moderate-temp low SOC for the 12V battery, making engine start impossible, and lost hands-free/bluetooth/phone options.
The center console touchscreen/embedded display refuses to power down, only shutting off after 1-2 cycles of powering on, shifting into drive, shifting back to park, and powering down.
Troubleshooting and Diagnostic Tools
Diagnosing the issues with your 2012 Chevy Volt requires the right tools and a methodical approach.
To get started, you’ll need diagnostic tools like BlueDriver and a service manual to identify error codes and connect the dots between OnStar and hands-free issues.
Here are three essential diagnostic steps:
- Visual inspection: Check center console connections and attempt to reset the center console via cycling through drive and power-down to troubleshoot infotainment system issues.
- Battery inspection: Inspect the 12V battery and its connections, and test its performance to diagnose electrical system faults.
- Software updates: Check for software updates and install them promptly to resolve infotainment system issues, including inaccurate range estimates and system freezes.
Common Fixes and Replacement Parts for the Chevy Volt
When troubleshooting your 2012 Chevy Volt, you’ll likely encounter issues that require replacement parts or specific fixes.
For instance, if you’re experiencing battery degradation, you may need to replace the volt battery with a new one, such as part number 12601873.
Charging problems can be resolved with a new charging cable or port replacement.
Brake noise or vibration may require new brake pads or rotors.
Regularly checking coolant levels and inspecting for leaks can prevent coolant system issues.
Always consult a certified hybrid technician for complex repairs and guarantee you have the correct replacement parts for your Volt.
Frequently Asked Questions
Is It OK to Leave Chevy Volt Plugged in All the Time?
When you leave your electric vehicle plugged in constantly, it’s called Constant Charging. You’re safe to do so, as modern EVs, like the Chevy Volt, have built-in safeguards to prevent overcharging and protect the battery from damage.
Why Won’t My Chevy Bolt Start?
You’re stuck, wondering why your car won’t start. Is it a dead battery? Check the basics first: verify the parking brake is off, transmission’s in park, and the battery’s not drained from accessories left on.
Can You Still Drive a Chevy Volt With a Bad Battery?
You can still drive your car with a bad battery, but the Battery Limiter will kick in, reducing electric range and fuel efficiency; however, if it’s completely dead, you won’t be able to start the vehicle, even in gasoline-only mode.
Why Is the Battery Light Red on My Chevy Volt?
You’re seeing a red battery light, indicating a battery failure, likely due to high-voltage battery malfunction or charging system issues, which require prompt attention to prevent reduced electric range and performance problems.
Conclusion
As you navigate the twists and turns of Chevy Volt troubleshooting, keep in mind that knowledge is power – and in this case, electric power. By following these guidelines, you’ll be well-equipped to tackle even the most intimidating issues, from battery degradation to software glitches. So, don’t let your Volt’s problems leave you feeling like a ship without a rudder; chart a course for diagnosis and repair, and get back on the road to electric efficiency.