The computer went haywire, causing the car to drain the battery, even when the car is not in use. We got totally stranded with a dead car, and when we went to get a jump, we couldn't find the battery. The computer also caused the hazard lights to come on every time we started the car, and even after we turned the car off, they stayed on (no we didn't accidentally turn them on). The dashboard digital display also went screwy and displayed nonsense characters.