The contact owns a 2014 Chevrolet Impala. While driving various speeds, the brakes locked up. The contact stated that the engine blew out, which also caused the catalytic converter to fail. The contact stated that the dealer could not determine why the vehicle overheated. When the vehicle overheated, the contact became locked inside the vehicle until it cooled down. In addition, the high beam headlights were very dim and dimmer than the daytime running lights. The vehicle was taken to the dealer where it was diagnosed that the vehicle was designed in that manner. The vehicle was repaired several times for the failures, but the remedies failed to repair the vehicle. The manufacturer was notified of the failures. The approximate failure mileage was 54.

- Keystone Heights, FL, USA

The contact leased a 2014 Chevrolet Impala. While driving approximately 70 mph with the cruise control engaged, the front crash sensor warning indicator illuminated as the brakes independently depressed. The contact depressed the accelerator pedal, which disengaged the brakes. The failure recurred on several occasions. The vehicle was taken to the dealer but the failure was unable to be determined. The vehicle was not repaired. The contact also stated that while the vehicle was parked with the keys out of the ignition, the radio, the light behind the control buttons on the steering wheel, and the lights behind the display for the radio illuminated; however, there was nothing displayed on the screen for the radio. The failure recurred on several occasions. The manufacturer was made aware of the failure. The approximate failure mileage was 100. MA 10/19/2015

- Mansfield, OH, USA

On a couple of different occasions I have been stopped at a stoplight or stop sign. When the gas pedal is pressed to accelerate, there is hesitation by the vehicle to accelerate causing the vehicle's act of acceleration to occur separately from the act of pressing the gas pedal.

- Northlake, IL, USA

Parking brake is setting its self at times. Recall was done in January 2015 but still having the same issue May 2015.

- Romulus, MI, USA

The contact owns a 2014 Chevrolet Impala. The contact stated that while driving approximately 20 mph, the brakes were engaged and failed to respond. As a result, the contact crashed into another vehicle. The air bags failed to deploy. No injuries were reported and a police report was filed. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 32,000.

- Calumet City, IL, USA

The contact owns a 2014 Chevrolet Impala. The contact stated that while driving at 55 mph, the brake warning light illuminated. In addition, the vehicle skid to a stop and the engine stalled. The vehicle was able to restart. The vehicle was towed to a dealer where it was diagnosed that the E-brake needed to be replaced and the electronic parking brake software needed to be updated. The vehicle was repaired. The contact referenced NHTSA campaign number: 14V541000 (parking brake).the manufacturer was made aware of the failure. The failure mileage was 11,000. The VIN was not available.

- Jordan, MN, USA

The contact owns a 2014 Chevrolet Impala. While driving at various speeds, the brake pedal was applied and the vehicle vibrated violently. The vehicle was taken to a dealer where it was diagnosed that the type of fuel needed to be switched to regular. The fuel was switched, but the failure persisted. The manufacturer was notified of the failure. The approximate failure mileage was 800. Updated 03/31/15

- Chicago, IL, USA

The contact owns 2014 Chevrolet Impala. The contact received a notification for NHTSA campaign number 14V541000 (brakes). However, the parts needed were not available. The dealer was contacted and advised the contact that the parts would not be available until February. In addition, the contact stated that while driving at an unknown speed, the power steering failed and when engaging the brake the vehicle hesitated and lunged forward. The vehicle was not repaired. The failure mileage was 527.

- Rochesdter, NY, USA

I just had got my new car that day. I was on my way home and I was approaching a stop sign and I tried breaking abd I could not stop so I had to go on to the curb which I sided with a tree to avoid hitting another car in front of me or kids ridingh in street. I took it in to get looked at and they said they didn't see anything wrong with breaking. So I kept driving after that and it is still doing so I took it in again and they said the same thing again which is making really upset because I am scared of hurting someone or myself and kids when it does that. I am spending alot of money on my new car and im not happy with it. I cant kept running into things to avoid hitting someone or thing when it does not stop. I have called the dealership and left messages for service manger which he has not responded back.

- St.Louis Park, MN, USA

The contact owns a 2014 Chevrolet Impala. The contact stated that smoke started to emit from the rear of the vehicle and shortly after a fire started. The fire department was contacted and the fire extinguished on its own. The vehicle was towed to an authorized dealer. The technician stated that the brakes, brake pads and brake lines needed to be replaced. The manufacturer was notified of the failure and the contact was awaiting further inspection of the vehicle. The approximate failure mileage was 6,000.

- Lavonia, GA, USA

I've owned my vehicle for over a year and on 3 occasions the emergency parking brake would be applied on its own after I would turn off the vehicle.

- Orange, CA, USA

The parking brake will not disengage the rear brakes after pressing the electronic parking brake button. The red parking brake light on the dash goes out but the rear brakes are still engaged. The driver will be unaware that the problem exists until smoke begins rolling out of the rear wheels. This is a safety hazard that should be investigated by NHTSA due to the number of similar complaints already reported.

- Bloomington, IL, USA

As a rental vehicle to use while warranty repairs where being performed on my traverse; I had been rented a 2014 Impala. To my surprise the following morning I came to a stop and the engine quite, there was a clear lane within site that I figured I could push the dead vehicle to. I opened the door, while keeping my foot on the brake and positioned myself in the door frame to push. Then I removed my foot off the brake to reach in and place it into neutral and start pushing. To my surprise the vehicle started by its self and accelerated away from me, the door frame almost knocking me down, yet luckily I was able to catch the car and get back to the brake before the car crashed. I came to find out that this was an economic feature on that vehicle. I feel great concern that this car started when my seat belt had been removed and door opened, would they have at least considered some sort of precaution from this occurring. Please take this serious, I know that I was not advised of this feature, and had I not caught the car or gotten knocked down and run over, the outcome would have been much more serious.

- Lake Orion, MI, USA

Parking brake would not release (supposed to do so automatically, also would not release manually) on multiple occassions. Had burning brake smell while driving. Brake calipers worn down. No service codes set. Parking brake working as designed at the time of service. GM technical assist started case #[xxx]. information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6)

- Accokeek, MD, USA

While traveling at highway speed in light blowing snow, vehicle began to vibrate. Vibration was extreme and constant. After contacting two Chevrolet dealerships we were advised it was a common problem with snow building up on rims. We were advised to power wash the inside of the rims. This was done and the problem was fixed. During the approximate 800 mile trip in and out of snow this had to be done twice. Chevrolet was contacted and we were advised there was nothing they could do. The vibration becomes violent enough that highway speeds are not obtainable and the vehicle is hard to control. This forced us to travel below the posted minimum freeway speed until an exit with a power wash available.

- Marquette, MI, USA

While driving on Texas highway 287, southbound, my anti-collision alert system activated. It sounded a loud beeping, followed by a full application of all brakes. Startled, I was able to apply the accelerator pedal to resume my speed. Approximately 5 miles further, the incident repeated it self. During the first incident, there were no vehicles in front of me, none. The road was dry, straight and free of any obstacles. There was no traffic behind me. The second time the car automatically locked up my brakes, there was a car behind me, but he was able to swerve and avoid rear-ending me. Again, there was no traffic of any type ahead of me and the road was flat, dry and straight. Again I was able to apply the accelerator pedal to regain control of the car and pull over to the side where I.shut off the engine. I restarted the engine and proceeded to my destination in springtown, Texas without further incident. I took the car to the dealership the next week for a diagnostic search and repair of the incident. They had the car for three days and told me nothing was wrong with the car. I'm filing this complaint, because I believe that this is a potential deadly threat to me, my passengers, or other drivers.

- Livingston, TX, USA

TL- the contact owns a 2014 Chevrolet Impala. The contact stated that while idling at a stop light, she took her foot off of the break pedal and attempted to drive but the vehicle would not move. The contact depressed on the accelerator pedal with force until the vehicle moved. The contact the took the vehicle to dealer but they were unable to determine the cause of failure. There were no repairs made. The manufacture was notified of the failure but they did not provide a remedy. The failure mileage 14,000.

- West Caldwell, NJ, USA

The contact owns a 2014 Chevrolet Impala. The contact was using the vehicle as a rental. The contact was driving 20 mph when the brakes independently seized. The vehicle came to a complete stop then eventually resumed proper function. The next day the failure recurred while driving 40 mph, the contact heard 3 to 4 beeps followed by the brakes independently seizing. As a result, another vehicle crashed into the rear of the contact's vehicle. There were no injuries and a police report was not filed of the incident. The dealer and manufacturer were notified of the failure. The approximate failure mileage was 2,500.

- Nevis, MN, USA

At 55 mph on a slippery right hand side curve (speed limit is 65 mph) vehicle under-steered and lost traction completely, without touching the brakes, it started to slow down and skidded to the outside of the curve (to the left). I tried to get it back to the driving lane, it started to skid laterally to the right and slowed down until it hit a reflector post on the edge of the right lane and stopped. Vehicle information on the dash board read "ice detected...". although the damage on the right door was a very minor dent, the car deployed all 4 head curtain airbags and 2 right side airbags, engine was shut down and front seat-belts were stuck. Few minutes later, the engine ran normally with the "ice detected.." message still on. It seems that the airbags sensors were activated for no required reason for a minor dent on the door. Also, the stability and the faulty braking system might be of a great safety issue on this vehicle.

- Laramie, WY, USA