While car is in motion (around 35-40 mph) the stabilitrak, ABS, A/C, blind-spot monitor shuts off; speedometer, gas gauge, battery gauge on dashboard all go down to zero (even when car is moving); engine is still running, but vehicle does not respond when accelerator is applied. If engine is turned off and allowed to rest a minute or two and then restart is tried, it either does not start at all or it will start, but will not move over 20 mph (just enough to get off the road.) if allowed to rest @10 minutes, engine will start again, dashboard is functional, but engine service light remains on. Acceleration seems "sluggish" when driving after this event, but can get up to @50mph. However, the first time this happen and the car got up to 50mph, the electrical system failed again (as described above) but I could "coast" home, thankfully. The weather is in 80S so A/C is on every time this happens (so far). This seems to only happen on short trips (5 to 20 mile trips such as for shopping, errands, etc.). it has not happened (yet) on longer trips. The first time this happened, the GM service rep said "confirmed ses light on wire harness out of firewall making contact on A/C lines. Has rub-thru on wire. Reposition wire and reseal." After 1 month (1,243 miles), the same exact incident happened again. GM service rep this (second) time said there are a lot of "communication codes" that indicate communication failures. GM service rep is still investigating issue. There is a service bulletin already for this problem (or one like it): Tsb ref# pi-1202, NHTSA ref# 10055394.

- Belvidere, IL, USA