2012 Chevrolet Volt fuel system problems

Filed Jun 4, 2026 · Fuel system, Transmission · NY

Message on dash "Service High Voltage charging system" . Code cleared by inexperienced mechanic. Stalled on the side of the road with "Engine not available" , "Low propulsion" . My local Chevy dealership confirmed a high volt battery leak its now at risk for catching on fire

Filed Jul 15, 2024 · Engine, Fuel system · OK

7/6/2024 Was driving 45 mph on a busy road (running only on the gas engine of this plug-in hybrid). Propulsion Power Reduced message showed near the speedometer. My speed was immediately decreased. The check engine light also came on. Despite pressing the gas pedal, the speed could not be maintained and I had to pull off quickly before causing an accident. Luckily, no accident occurred but I fear would could have happened if I wasn't in the right place to pull over quickly. After getting the car towed to a Chevy dealership, they diagnosed the problem as being with the hybrid battery - it needs to be replaced. I don't understand why I had a full tank of gas, was running on gas, and that a bad EV battery would cause ALL propulsion to stop so quickly.

Filed May 14, 2024 · Engine, Fuel system · CA

Vehicle propolusion reduced and engine not available messages were suddenly showing. Check engine light turned on. Suddenly Stalled/stopped in the middle of highway. Safety concerns

Filed Dec 27, 2022 · Electrical, Fuel system · ME

2012 chevrolet volt, the vehicle has been losing power for propulsion on the highway/roads at all speeds. Shutting off. Electric charge is supposed to switch to the gasoline motor when it is low, but it does not, and vice versa. It shows hybrid battery management has a loss of propulsion with a message of low propulsion power. The original problem was not fixed with a recall a few years back because the same problem is showing up. Now, chevy does not have this VIN being recalled. But worse, the conditions in the software are causing a powertrain failure while driving. Please help. I am pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Aug 29, 2022 · Acceleration, Engine · CA

I'm constantly receiving a "Propulsion Power Loss" notification on my car. I have brought the car in to a Chevrolet dealer and they refuse to fix it unless I start paying out of pocket costs because the ticket is "closed". This has been going on for about a year since I purchased the car last November and I'm terrified to drive this car since it literally looses power.

Filed Feb 9, 2022 · Electrical, Engine · NE

Car suddenly entersinto a no start and stall.this is being repaired by h&h chevrolet in omaha at owners expense.the problem seems to be in a faulty batterycharge sensor. The part is being ordered by h&h service department andis notyet installed.as of 2/9/2022.

Filed Oct 29, 2021 · Brakes, Fuel system · HI

While traveling slowly (about 25mph) on an uphill grade, my Volt suddenly, with no warning messages or other alerts to me, lost propulsion, power brakes and power steering. This car is extremely hard to steer and to brake without the power assists, so I really had to wrestle with the wheel to avoid losing control of the car, and I really had to jam on the brake pedal to get it to a stop, even though I was moving slowly and had a gravity assist from the uphill slope. It seems to me an event such as I experienced could be catastrophic if it occurred at high speed, and / or on a steep downhill slope or a street with a lot of traffic. Incidentally, when this happened I had just turned onto a side road from a highway with lots of traffic moving at 60-80 miles an hour on a slope so steep that in spite of numerous warning signs, accidents, including fatal accidents, occur regularly on this section of the highway due to drivers failing to apply their brakes hard enough or early enough to keep the car on the road. As a result I felt like I had barely escaped with my life, only as a result of a sudden whim that entered my head to leave the highway for the scenic side road. It may also be relevant that the incident occurred directly after I picked up the car from the Chevy dealer following repair for another incident where I lost propulsion, power brakes, and power steering - the difference being that the car was stationary during the previous incident. The photo shows the electrical connections that the dealer ultimately determined were responsible for the second (Oct. 20) incident, and maybe the first as well. These terminals are enclosed, and not visible to the car owner, even with the hood lifted. Checking the terminals is not part of any maintenance recommended in the owner's handbook, nor apparently in the standard service procedures, even when a car comes in with symptoms that could be caused by a loose connection, even after replacing the 12V battery, as they did.

Filed Sep 29, 2021 · Fuel system · TX

2012 Chevy Volt, has been stalling out on the highway since it was brand new, every 6 months. It has been to the Chevrolet dealer many times and they just reset it and move on. In every case the car works for a short time, 6 to 8 months max and dies out again. They have updated the software many times, but nothing has changed it. It keeps stalling out on the interstate with high speed traffic, a severe hazard. Chevy dealerships have never been able to get to the core of the issue. The last time it died, the dealer said they did not know what else to do and told me to call GM. I have every receipt of this happening. The last time this happened is today, 9/29/2021 and has happened 3 times in the last month now. My wife and kids life was at risk several times with this car. It is an extreme safety hazard.

Filed Apr 14, 2021 · Electrical, Fuel system · 101,000 miles · VA

The vehicle has illuminated the check engine light with a warning that the battery is too cold. This occurred while in motion on a highway under normal conditions in summer temperatures. An internet search has indicated that a temperature sensor may be to blame, and that the electrical system may try to heat the battery to an unsafe level.

Filed Feb 16, 2021 · Electrical, Fuel system · 75,000 miles · PA

Temperature sensors responsible for monitoring the battery pack fail unexpectedly. Sometimes displaying a "battery too cold plug into warm" message or a check engine light. Personally, this is the second time I've had a sensor fail. The entire module containing the failed sensor must be replaced. The battery is made up of three different sections called modules. When a sensor fails, the car will simply refuse to start despite being within a normal operating temperature range. I've had the message display when in motion. This time however, the message was accompanied by a check engine light, and a burning odor that resembles burning plastic while the engine is running. I have yet to experience reduced propulsion of any kind while driving.