Transmission occasionally shifts erratically, hard at times, hesitates and bucks.never had any vehicle in my life do this, even cars with known bad transmissions. The sudden downshifts cause the vehicle to suddenly propel forward, especially when cruising to slow down or while brake is depressed, causing an unsafe change in vehicle speed that requires sudden need to brake or increase brake pressure to avoid striking vehicle in front. Transmission also at times has an "engine miss" type jolt while at cruising speed on flat pavement 30-45mph that has at one time repeated for 3 minutes straight.. majority of time transmission behaves normally and without incident and then suddenly goes nuts. Dealer did one powertrain software update that helped a little but with no codes or symptoms when they test-drive they can not find a problem.

- Sellersville, PA, USA

The contact owns a 2014 Chevrolet Malibu. While driving 45 mph, the vehicle failed to accelerate and the engine RPM's increased. In addition, the vehicle jerked violently. The vehicle was stopped and failed to reverse. The vehicle was restated and jerked into gear. The failure recurred on numerous occasions. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 21,000.

- Waldorf, MD, USA

This auto jerks while in cruise control, then while going 60 mph up a hill down shifts for more speed, then I reach the top of hill cruise stays in lower gear and picks up speed. Unsafe to drive.

- Cedar Rapids, IA, USA

The auto stop/start fail two time the check engine light came on took it in two time to get it fixed. When driving it will down shift when I take my foot of the gas.

- Phillips Ranch , CA, USA

The contact owns a 2014 Chevrolet Malibu. The contact stated that the vehicle failed to accelerate and there was a sudden increase in engine rpms. The vehicle was taken to a dealer. The technician was unable to detect a failure. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was 6,800 and the current was 7,100. Updated 8/11/14 updated 08/23/2017

- Rochester, NY, USA

The contact owns a 2014 Chevrolet Malibu. The contact stated that when the gear lever was shifted from any selected gear, the engine revved and the transmission began to jerk without warning. The failure recurred intermittently. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 2.

- Tougalloo, MS, USA

I just purchased a 2014 Malibu on 04- 22 for my daughter. Due to my daughter telling me that the brakes felt mushy in her car I decided to test drive it myself. While driving down my street at approx. 25mph with the brake slightly depressed, the transmission shifted unexpectedly and the engine seem to rev up. This made the vehicle that much harder to control and stop. This has to be looked into a.S.a.P. I do not want my daughter to continue driving this vehicle until there is a solution. Going to take this vehicle back to the dealership first thing Monday.

- Daisytown, PA, USA

1st incident when applying the brake the vehicle would do a extreme pull to the right. 2nd incident 2/24/14 mile 2940 - transmission shuts down after exiting highway.

- Union City, GA, USA