2017 Chevrolet Volt

I am reporting a series of safety concerns regarding my 2017 Chevy Volt, which have persisted despite multiple attempts to address them with the dealership. These issues pose significant risks to my safety and that of others on the road. On January 18th, 2024, I brought my vehicle to the dealer after experiencing reduced propulsion power while driving on the highway, coupled with the illumination of the check engine light. The mechanic performed a quick inspection and used a GM scan tool to diagnose the issue, revealing the code P1E00 for the Hybrid Powertrain Control Module 2, which was cleared without a thorough investigation. I was advised to return if the issue reoccurred. Despite the reset, the problem persisted, and on February 9th, 2024, I scheduled another appointment due to my Chevy Volt's High Voltage battery charging only to 65% capacity despite indicating a full charge. Subsequently, on February 11th, 2024, the check engine light illuminated again, and on February 12th, 2024 and again on November 25th, 2025, while driving to work, both times I experienced a loss of propulsion power on the highway, placing my safety at risk and lost all power in a traveling lane of traffic. These ongoing issues with propulsion power and the high-voltage battery charging system are not only inconvenient but also potentially dangerous. Despite multiple visits to the dealership and attempts to diagnose and resolve the problem, it persists, indicating a systemic issue that requires immediate attention. The reduced propulsion power while driving on the highway, coupled with the illuminationI urge the National Highway Traffic Safety Administration (NHTSA) to investigate this matter thoroughly to ensure the safety of Chevy Volt drivers and passengers. It is imperative that General Motors addresses these issues promptly and implements appropriate measures to prevent further incidents.

While driving my Chevy Volt lost power as it disconnected from a full charged battery to gas as the check engine light lit on. The car would then hesitate after stopping at a light/stop sign, losing and regaining power as it gained momentum (which was very dangerous), and would no longer charge. The issue was confirmed by Sun Devil auto repair (diagnosis attached) that this was a known issue with Chevy Volts 2016-2018 and would be covered. I was advised that my VIN was not covered and paid Freeway Chevrolet $2,301.62 (invoice attached with BECM replacement) and would like to be reimbursed. The Chevy Volt's Battery Energy Control Module (BECM) warranty was extended by GM to 15 years or 150,000 miles, from its original 8-year/100,000-mile Volt Component coverage, for 2016-2018 models. This Special Coverage N232432680 addresses potential BECM malfunctions causing reduced power, no start, or no charge conditions. Details of the Extension •Coverage: 15 years or 150,000 miles (whichever comes first) from the vehicle's original in-service date. •Affected Models: Chevrolet Volt models from the 2016, 2017, and 2018 model years. •Purpose: To cover issues with the Battery Energy Control Module (BECM) that can lead to reduced power, no-start, or no-charge conditions. I contacted Chevy and they recommended I file a complaint since they could not help me or explain why my make/model/year fits the criteria of a known issue and would not be covered.

My 2017 Chevrolet Volt is experiencing "a malfunction involving the battery energy control module (BECM)" as diagnosed by the Davis-Moore dealership. This failure of the BECM has now caused "a reduced power mode, a no start condition, or a no charge condition". The car currently does not start or charge. My vehicle has be diagnosed as needing a BECM replacement at a Chevrolet dealership. The vehicle is currently inoperable as it will not charge, it will not engage the electric drive mode, and it will not engage the range extender (engine). The car does not start. GM is showing that there is no active recall or special warranty for my vehicle, however, I believe special warranty N23243268 should apply.

I am writing regarding my Chevrolet Volt, which suffered the very common Battery Energy Control Module (BECM) failure that your office already investigated and which resulted in GM being required to extend coverage under special warranty reference: MC-10251431-0001 . Despite this, Chevrolet is refusing to cover my repair. Their reasoning: because my Volt was originally purchased in California, they claim it falls under CARB rules—but now that I live in Arizona, they insist neither California’s coverage nor the NHTSA-ordered special coverage applies. In effect, my vehicle has been trapped in a paperwork loophole GM is exploiting to avoid responsibility. This response is not in the spirit of your findings. The defect was not caused by geography, state lines, or ownership history. The BECM is a manufacturer defect, and it failed for the same reason thousands of others have failed: poor design and inadequate durability. Whether the car was first sold in California, Colorado, or Kansas is irrelevant—the failure is GM’s, and the repair obligation should be GM’s as well. By denying coverage on a technicality, Chevrolet is undermining the very purpose of the extended coverage you required: to protect owners from footing the bill for a well-documented, widespread, and unsafe defect. Their position leaves me, and others like me, bearing the costs of GM’s engineering failure. I ask that NHTSA review GM’s handling of these claims and require them to honor the extended coverage as intended, without hiding behind jurisdictional loopholes.

I was driving my car from Houston to Dallas when I got the "reduced propulsion" message and a check engine light. When I first saw the reduced propulsion issue I thought it might be related to the BECM issue again since I had already experienced that problem before. In the last few minutes of my trip the AC started to get hot and when I checked the coolant temperature I noticed it was around 240 - 255 F. I hadn't noticed it since there was no warning light for high temperature which I am used to with other cars. I'm not sure of the full extent of the issues yet, but I know for certain that the EGR valve has failed completely at about 71,500 miles. This is with very few miles on the actual ICE. I typically only use the ICE for a few hundred miles of driving each year. Fortunately for me, even though the CEL came on for the reduced propulsion I was able to reach my destination. However, when I went to leave, the car left me stranded as the ICE would shut down after a few minutes of running. The propulsion system is reduced and the engine becomes unavailable. Only the battery power will allow the car to drive. The F3 fuse in the EGR circuit blows if the engine is activated, and has happened multiple times already confirming the EGR issue. I have additional check engine lights that are a result of the EGR failure to circulate coolant properly. Below is a list of all the CEL codes that were pulled: P06DB P0030 P0031 P0403 P0405 P0443 P0458 P0489 P0597 P0598 P06DA P0AC4 P0135 P0AC4 P16E0 Looking into this issue I found that this is an one of the most common failures in the Chevy Volts but is no longer covered under the vehicle warranty and no bulletins posted for an extended warranty other than the BECM failure. This failure is so prevalent that I am surprised it is not.

While driving approximately 65 MPH on an interstate highway, the vehicle's check engine light illuminated. Very shortly after, the dashboard screen displayed the message "propulsion power reduced," and the internal combustion engine turned on. The vehicle's power was significantly reduced, almost causing an accident when another car started merging without checking their blind spot, forcing me into the left lane in front of a third vehicle that had to brake sharply to allow me to accelerate to keep up with traffic in that lane. Upon scanning the vehicle with an OBDII reader, codes P1E00, P1F06, U2603, U2604, U2605, U2606, U2617, and U2618 were present. Together, these codes indicate an issue with the Battery Energy Control Module (BECM). The vehicle is currently at a Chevrolet dealer, awaiting replacement of the BECM under the applicable warranty extension.

Vehicle: 2017 Chevrolet Volt Purchased: March 2017, new from Quality Chevrolet, Escondido, CA I am reporting a persistent and worsening issue with the “Shift to Park” system in my 2017 Chevy Volt. The problem began approximately three months after purchase (mid-2017) and has continued to worsen over time. Initially, the issue occurred intermittently, but it now happens every time I attempt to turn off the vehicle. The vehicle fails to recognize that it is in Park, displaying a “Shift to Park” message on the dashboard even when the gear selector is correctly positioned. This prevents the car from shutting off properly and poses a safety and battery drain risk. I brought the vehicle to Quality Chevrolet for service on the following dates: June 2017 April 2018 August 2020 Despite these visits, the dealership failed to diagnose or resolve the issue. On July 9, 2025, I returned to the same dealership, and they finally diagnosed the problem as a faulty jumper harness and switch contact, quoting $586 plus tax for the repair. I requested a goodwill repair from GM, given that the issue began within the warranty period and has been ongoing for years, but my request was denied. This is a known and widespread issue affecting many GM vehicles, and I believe it represents a design or manufacturing defect that should be subject to a recall or broader investigation. I am requesting that NHTSA investigate this issue further to ensure consumer safety and accountability.

The contact owns a 2017 Chevrolet Volt. The contact stated while attempting to turn off the vehicle, the vehicle failed to respond as needed while shifted into park(P). The contact manipulated the gear shifter until park(P) was recognized and the vehicle turned off. No warning light was illuminated. The contact stated that an appointment with the dealer was scheduled to inspect the vehicle. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 114,000.

The contact owns a 2017 Chevrolet Volt. The contact stated that after arriving at the destination and moving the shifter into park(P), the message "Shift to Park" was displayed. The contact became aware that with the message displayed the vehicle would not start. The contact disconnected and reconnected the 12-Volt battery to reset the system, enabling the vehicle to start. The contact stated that after starting the vehicle, the vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the Battery Energy Control Module. The vehicle was not repaired. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 96,000.