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Service Brakes
06/13/2024
While driving, the car developed a brake malfunction. when the brake pedal is depressed you can feel the pedal pulsating and was not slowing down until you pressed harder then the brakes apply abruptly causing risk of rear ending. Upon pulling over to the hard shoulder the pedal pulsating/drumming continued to happen even though the car is completely stopped and is in parking gear. The symptom is similar to the service bulletin PIC5734A. [XXX] The car was driven to the nearest dealership 'Dublin Chevorlet' in Dublin CA and the car has been there for 4 weeks since GM is unable to help resolve the problem. I have reached out to GM and opened a support case. Case number [XXX] ]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
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Engine, hybrid Propulsion System
03/06/2023
The contact owns a 2013 Chevrolet Volt. The contact stated while driving 50 MPH, the vehicle lost motive power with the check engine warning light and low oil pressure warning light illuminated. The vehicle was towed to the dealer where a diagnostic test result was undisclosed; however, the contact was informed that the vehicle needed an ASC high-voltage battery to be replaced. The vehicle was not repaired after the ASC battery was replaced. The contact stated that the propulsion system warning light was illuminated. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 100,000.
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Fuel/propulsion System
05/03/2024
This report is in general for EV batteries and low propulsion, BMW also. When system moves to low propulsion the break lights do not eliminate so the vehicle slows very fast as if it is breaking but no break lights turn on, this creates a risk for other drivers, this occurs on steep mountain climbs when mountain mode was not engaged. What I want to happen is when low propulsion mode engages the break lights come on so that other drives can keep safe distance as I pull to the side for battery to recharge. This does not happen that often but when it does occur it creates a scary situation. A electric BMW also did this today. Please request a break light adaption for future EV batteries/Gas Powered vehicles. Keep in mind this is generally for electric cars that have a backup gas engine that powers after battery is depleted, they most often have issues on steep mountain climbs at freeway speeds and or in some cases as I witnessed today when behind a BMW cars slowing very quickly without al...
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Electrical System
04/26/2024
The contact owns a 2013 Chevrolet Volt. The contact stated that while driving at approximately 45 MPH, the vehicle stalled. The vehicle was able to be restarted. There were no warning lights illuminated. The contact stated that the failure persisted, and the propulsion system warning light was illuminated. The vehicle was taken to the dealer who diagnosed and determined that the battery needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 186,000.
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Electrical System, fuel/propulsion System
02/07/2022
When starting the vehicle, which had some charge on the batteries, the engine immediately started and a message appeared on the speedometer screen which stated, "Propulsion Power Reduced,” and another message said, “speed limited to 25mph.” I was in a very busy part of Hollywood running errands for my job when this happened. I felt very unsafe driving under these circumstances as I often need to drive above 25mph to keep up with traffic and cross busy streets to avoid other cars. The vehicle is available for inspection. It has not been taken to a dealership or anywhere else to have the issue looked at. The problem has occurred a few other times. The vehicle has not been inspected by the manufacturer, police, insurance representatives or others. There were no warnings or other symptoms whatsoever prior to this issue occurring.