Well apparently OHM-RIDE is okay. Glad someone posted this though!
I am affected greatly by this fubared past software update. Ever since I had the re-programming done, I have had dozens of reduced power propulsion events. Just on Tuesday I went out to the car and was presented with the unable to charge message and no miles on the battery available. The battery was full from the previous night and the car hadn't been used. I have to drive several miles with the engine racing before I can pull over and stop the vehicle, get out of the car and walk away about 30 feet, wait a couple of minutes and then go back and then the car will finally show about 12 miles available which I exhausted on the continued trip into town. The engine fires back up again and you have normal operation from the car with a depleted battery. Then after watching a movie, I come out to the vehicle and I will have 20 miles of range showing which gets used up normally. Then the car will recharge overnight normally and will clear the CEL in a day after a normal topup charge for non-use of any range. Rinse and repeat.
The car has been into two different dealers several times and I have always been told there is nothing wrong with the vehicle. I actually started a "lemon law" action on the vehicle at one point. I have replaced the 12V battery and also replaced the Level 2 charger. The unable to charge happens on any Level 2 charger or the car's Level 1 charger. I am disgusted with the service from GM and that no dealer can fix the vehicle.
I am finally validated by this recall that the previous reprogramming is what has caused my vehicle to have all my reduced power propulsion events. I bet I have a damaged battery now from the vehicle not being able to do proper cell rebalancing. Thanks a bunch GM
We are seeing more and more frustrated Volt customers on this site dealing with dealers who are not clear (or in some cases reviewing the details) of the Volt warranties. When they get shown them and asked for explanations they sometime change their mind. If not then it needs to be pushed to upper management at the dealer.So wny has one dealer tried to charge me for a service visit absolutely involving a power train function that is supposedly covered by the 10 year warranty by claiming it was not covered under warranty. They are all crooks.
Cell balancing isn't about safety, or even longest lifetime. Its about maximizing the energy you can charge/discharge while safely operating every cell in the pack.To get the longest life possible balancing is always a good idea. Is it dangerous not to have it? It depends.
The charger is doing a bit more than you think. It charges until the first cell(s) reach full charge, then stops charging. A shunt across the fully charged cell(s) is turned on, slightly discharging those cell(s). After a time (say, 1% discharge), the shunts are turned off, and pack charging resumes. Rinse and repeat. Eventually, all cells will reach full charge, but this can take quite a few charge/shunt cycles in a badly balanced (or new) battery pack. If balancing is performed with each charge (following a day's use), you'll likely never notice the few charge/shunt cycles near the end of the routine charge at the end of the day.My 2013 is on the recall list too. It is an early build, a PEP/Special Event manufacturer's vehicle put in service 8/29/12. It was never registered to a private owner until I bought it. Car only has 30K miles on it, screen shows 10.4 -10.5 battery usage before the ICE comes on, so I am assuming that the battery is still healthy. I'm just waiting for the formal notification and availability of the reprogram info.
I have an ebike with a 36v, 12Ahr LiFeP04 battery pack with a built-in battery maintenance module. It will charge up, stop charging, and then in a few minutes start charging again. This cycle repeats a few times. One time I noticed the Volt doing the same - is this the balancing process?
PPR can be a normal message. It does not mean there is a problem.IO have had three reduced propulsion warnings which cleared up in a few minutes.