There was a recall for the Chevy Spark to reprogram the transmission control module, however that does not fix the problem. It does not need to be reprogrammed, because all that did was leave the check engine light on. They have fault control modules. My car is 3 years old and nothing but issues fixing this. The dealerships say that they fixed the recall by reprogramming it, but the light stays on, the rpms drop suddenly and cause the car to jerk when you try to give it gas. This needs to be looked into further. I would never recommend thus car to anyone I know, much less now I'm trying to get rid of it because of the transmission issue

- Evansville, IN, USA

I was driving on the freeway up a slight incline, it was over 100 degrees outside, had ac working and had cruise control set to 70 mph, the cruise control suddenly canceled itself out and my speed rapidly dropped. This always seems to happen when the weather is over 100 degrees outside and going up an incline, even slightly. Another problem I am having is that when I come to a stop, sometimes the car shudders and jerks. Also if I am running the ac on the vehicle in park, sometimes the ac cuts out itself. In order to start it again I need to turn the knob to off and turn the knob back on to get ac working again. These issues all occurred randomly, multiple times

- Beaumont, CA, USA