When steering wheel is turned left and now right the front end grinds at times but not all the time. However, it seems to be getting gradually worse, grinding more often. The "service stabilitrac system" comes across the dash panel and now it is stating "service brake assist". all the while nothing seems to be wrong with anything up front. This happens upon acceleration. This can happen in city streets, parking lots and freeways. I happens anywhere upon acceleration. There is no point at which the grinding is taking place can be seen. This seems to be a problem that Chevrolet has with all the models of this particular vehicle yet they are denying anything is wrong with the vehicles.

- Las Vegas, NV, USA

When accelerating from a stop while turning left, ABS engages and brakes left front wheel creating a very dangerous situation stopping the car in intersections without warning. Service stabilitrak, service ABS and service brake assist messages also appear on dashboard message center. All warning lights reset when vehicle is turned off, until a left turn is made while accelerating again, and the above issues occur again.

- Seymour, CT, USA

I have had this worked on about 1 month of purchase. I was told the cheap ball bearings in the wheels are faulty. My car makes a strange noise when I turn the steering wheel and it lunges for a split second and then engages forward. Also when I am braking down a steep incline, the brakes grab and jerk the car slightly. This has gone on since I purchased this car.

- Salem, VA, USA

The contact owns a 2013 Chevrolet Impala. The contact stated that while driving at 50 mph, the service engine and the stability control warning lights illuminated. In addition, the vehicle stopped without the brake pedal being engaged. The contact mentioned that the accelerator pedal was being depressed while the failure was occurring. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was 70,376.

- Colorado Springs, CO, USA

Traction control intermidely comes on affecting take off speed and steering resulting in ABS system coming on. Happens mainly when starting out form a stop. Cannot accelerate from a complete stop or make consistent turns.

- Reswood Falls, MN, USA

I have only had this car for 3 months and everything was fine until I made a left hand U-turn and all kinds of bells went off- service stabilitrak-service brake assist- service traction control-I called the dealership and just to put it on the machine to see what's wrong is $126 - quite frankly I don't have that kind of money to spare- I am extremely frustrated and according to research I have done this is a common issue that Chevrolet is not acknowledging-

- West Plam Beach , FL, USA

Grinding noise from front and ABS engages the brakes and low traction light flashes on when accelerating from a stop and turning left at the same time, does not matter if you accelerate slow or fast and this is happening on dry pavement. If I turn off the traction control it will not do it, so I assume the problem must exist in a speed sensor or something with the traction control sensors or wiring. Of course mechanics cannot duplicate this. Waiting for GM to step up to the plate and fix.

- Kewaunee, WI, USA

First my service ABS traction control lights came on and while making left turns a loud metal grinding noise happened and my traction control light flashed. I took it to my local mechanic he replaced the bearing and sensors which helped with the service lights but the grinding still happened. The noise and traction control light still continued while turning just not as much as before. The mechanic replaced the part twice!! took it to my mechanic again because of the grinding and traction control flashing he drove it around and he could not make the noise happen so he could not fix or replace anything. It feels like the ABS is braking on its own for no reason while I drive my 2013 Impala ltz. My mechanics can not find the problem and it seems neither can any Impala owner or mechanic. But I'm 99% sure when I drive it tonight to visit friends I will hear a metal on metal grinding noise I just hope not while im on the freeway where I can get killed. It happens while driving coming from a stop or as simple as me backing out of my driveway.

- Barstow , CA, USA

The contact owns a 2013 Chevrolet Impala. While driving 35 mph, the engine stalled and the power steering and brakes failed. The contact was able to restart the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was not notified. The approximate failure mileage was 44,500.

- Starkville , MS, USA

Car warning lights come on for traction control breaks and throws car into oncoming traffic at random times without warning. It is very unsafe and is on a recall list. I should not been sold a lemon car.

- Winton , CA, USA

The contact owns a 2013 Chevrolet Impala. The contact stated that while driving 5 mph, the brake pedal was engaged but the vehicle failed to decelerate and the contact crashed into another vehicle. There were no injuries or visible damage to either vehicle. A police report was not filed. The failure recurred three times while the contact was driving at low speeds. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the defect. The approximate failure mileage was 38,000.

- Decatur, IL, USA