While driving on the highway, when vehicle is traveling upward on an incline, the transmission causes "lunging" of the vehicle. Car would lunge than back off trying to maintain the current speed if the vehicle. I could observe the surges on the RPM gauge, as it would fluctuate up and down between 2200 and 2400 RPM while lunging was taking place. Then suddenly the gauge would jump up to around 3200-3400 RPM, and the lunging stopped and car regained regular speed. This occurrence happens on every incline at highway speeds, and there is no difference whether operating manually or with the cruise control operating. Problem is not so noticeable on inclines at lower speeds while city driving (milder lunging I guess) but still occurs on steep inclines only then; on highway it occurs on all inclines. (I have only owned this car for about a week now, but it is extremely worrisome, and I was surprised to not find any recall for this problem, as a mechanic I met said his Malibu has been doing that for the past 7 years and indicated there had been a recall for it; yet I found none listed.

- Anarillo, TX, USA

While driving on a highway after going over a pot hole the car turned off. After shifting into neutral and pulling to the side of the road I put it in park and started it back up. It started up fine but when I started driving it was very hard to make turns. After taking it to a mechanic they said the power steering went out and it needs a new rack and pinion and new power steering pump. They said it could be related to an ignition switch recall so I called GM. They said the ignition switch was covered by a recall but not anything related to the power steering.

- Cincinnati, OH, USA

Car was forced off road then rolled over into on coming traffic.

- Burt, MI, USA

Over the past month, the Malibu has stalled out while driving. It has occurred both on acceleration and deceleration one time almost causing a broadside impact as my son pulled out to make a left onto a bust street. He was fortunate and the oncoming driver was able to brake in time. We took it to a garage that said our ignition switch had to be replaced, which we had done. Curious because this is the exact problem that has occurred with the other vehicles involved in the Chevy recall, but our vehicle has yet to be recalled for this obviously hazardous defect.

- Voorhees, NJ, USA

Vehicle defects of Chevrolet Malibu. The consumer experienced transmission problems.

- Unknown, DC, USA