At around 70 mph the doors unlock and lock and the transmission shifts to neutral causing the engine to over rev.

- Oklahoma City, OK, USA

Vehicle was excessively rough in transition between hybrid and engine power and would jerk as if someone had placed the vehicle into park while moving. Vehicle lost electrical power to ac, radio and other accessories. Vehicle shutoff and had to be stopped and placed into park before it would restart. Vehicle lost power steering and the steering would stay locked in position until the vehicle rolled about 10-15 feet or until the vehicle transitioned to engine power. These condition repeated multiple times in a two day span, the vehicle was taken to the dealer for service. The dealer replaced a solenoid and an engine mount stating they had excessive wear. The vehicle now stays running, but I continue to have issues with the rough transition between modes. My concern is that this is the root cause of the excessive wear on the other parts and that the vehicle shutdown and steering loss will occur again. If it does, the damage to property, injury, or loss of life could easily occur given the lack of drivability and loss of control of the vehicle when the condition occurs.

- Yorba Linda, CA, USA

2012 Buick Lacrosse with less than 45K, the car has not started for 3 days and car will finally start after the key is left in the ignition for about a minute then the interior lights and screen come on (appearing as though the car was just charged) the car has had limited steering control the "power steering service soon" light appears a long with another warning light that says '' roll drivers window up, then down" the windows will not roll down neither do the locks work in the car.I was driving down the road and had to pull off to the side while all this was taking place. I have contacted GM for 2 days now, a GM rep named "rupert" took the initial call and said " don't worry, it's all covered GM will take care of it" ( these calls are recorded.) I made it to a friends house enough to get GM to call roadside assistance and take my car to the dealer, [xxx] said that it would be best to take my car to the dealer I bought it from. 22 miles away. 8:30 am was when the call was initiated and a call from GM roadside assist was made to me at 9:30am with a 2H eta. The first tow truck broke down and I had to call roadside assistance back once the first tow truck did not show up 30 min past the given eta. Finally the second tow truck arrives at 1310 and takes my car to the dealership. I call the dealership to discuss the rental car promised by GM, the dealership says that GM only covers a rental for 3 days, but it will be at the minimum 7 days before my car is even looked at, so I have to pay out of pocket for a rental car for 4 days until my car is even looked at, that's not including the time to fix the problem if it can be fixed right away. After speaking to 6 tier 2 reps specialist and managers I have no answers with a broken car, a rental that is half the size as my Lacrosse and I still have to pay for the rental. Lucky I did not die driving! this needs to be addressed!

- Huntingtown, MD, USA

TL - the contact owns a 2012 Buick Lacrosse. Whenever the contact activated the air conditioner fan control mechanism, all four doors in the vehicle would unlock independently. The failure occurred seven times. The dealer was unable to duplicate the failure. The vehicle was not repaired and the manufacturer was notified. The approximate failure mileage was 13,030. Jcc updated 09/05/14 updated 12/3/2014

- Chesterfield, SC, USA

Vehicle instrument cluster reported traction control service needed, tire pressure monitor service needed and key not detected. I pulled over immediately to look at the tires and all were good. Drove car to dealer as I assumed it would not identify the key fob and restart. Dealer confirmed warning lights at time of drop off but could not find any stored fault codes. Returned car with no corrective action. This is the second time the TPMS has indicated a flat tire, usually drivers side rear. TPMS false indicators are a serious safety concern.

- Perkasie, PA, USA

First I kept getting warnings to check had no speedometer, no heat, radio went out. Couldn't tell how much gas was in the vehicle. Screen read lost communication with telecommatics control module.

- Bluefield, VA, USA

The generator control module and **several** other components of the hybrid assist system failed while driving, and subsequently resulted in a loss of power throughout the vehicle. The main battery (in front) also exploded. The vehicle lost power steering, braking, etc. Loss of power steering hampered the driver's ability to coast out of traffic to safety. Had we not been in the left turn lane and had the arrow not turned green as it failed, the car would have died in the middle of a four lane, 45mph road during rush hour, and we probably would have too. Had the driver not been physically fit, it would have been impossible to turn the steering wheel. Not even the hazard lights worked.

- Denver, CO, USA

Since I purchased the car in June, 2012, there have been three (3) incidents where there was a gradual loss of battery charge, the vehicle would not start, and the illumination of the malfunction indicator light comes on. The most recent incident was this past Saturday, on November 16, 2013. My car is also equipped with E-assist. I do not know if there is a problem with the generator control module, or similar device. Each time a certified Buick repair service claim they cannot find anything wrong with the vehicle. Thanks god I have always been in a safe place when this has occurred, and so far there has been no fire in the trunk of my car, which I understand might occur. Thanks for all of your assistance in regards to this urgent matter. Updated 12/16/13

- Dallas, GA, USA

Un smooth shifting around 30 mph, causing the car to jerk or brake feels like the assist is not sensing, causing the had to dealership nothing they can do all check out but the problem is still there.

- Moorhead, MN, USA

The contact owns a 2012 Buick Lacrosse. The contact stated that while driving 30 mph, the radio/navigation console screen became black. The on star button and the emergency buttons were also disabled. The vehicle was taken to a dealer for diagnosis where the radio was replaced twice. The failure recurred and the contact was told on subsequent visits that the cause of the failure could not be determined. The manufacturer was notified and a complaint was filed but they offered no further assistance. The vehicle was not repaired. The failure mileage was 900 and the current mileage was 8,000. Updated

- Portage, IN, USA

Car was parked in garage for 10 hours. Found with all lights inside and out flashing. Remote entry didn't work. Car wouldn't start. Key stuck in ignition. Overhead light and wipers turned on and off on their own and were making a clicking sound. Trunk popped open on its own, then when shut wouldn't open again with the latch over license holder. Onstar didn't work and when called they couldn't "find" my vehicle for diagnostics. Called for a jump start- jumped with battery pack, started easily and ran 5 minutes then went completely dead as soon as unplugged from power supply. Would not restart. Towed to dealer who is telling me they cannot find anything wrong with my vehicle. I will not be taking this car back until it is fixed. Huge safety concern. Couldn't set parking brake or get onstar or even get key out of ignition while all lights flashed and clicked around me- seemed like an electric or wiring problem to me which can be a fire hazard and what if I'm driving down the road at 70mph and all electric goes dead- steering and all. I have E-assist and second battery doesn't help when don't have power to transfer power. I have had car only for one year brand new.

- Troy, MI, USA

I recently purchased a 2012 Buick Lacrosse with easiest. I had it less than 48 hours and had to take it to the dealer due to check engine light coming on. They stated the generator was faulty and needed replaced and there were 7 codes that showed up. After about a week they were finally able to have one shipped from the assembly plant. It was installed on 10/21/11 at which time I went to pick it up. After starting the vehicle I noticed the check engine light on again. They tested it and 5 codes came up which they said are related to the generator or easiest system. The car is still there so they will be trying again to find out the issue. There are several tsb's out there for this issue. Hopefully this can be resolved before I go the lemon law route.

- Middletown, PA, USA