When making a turn, the vehicle makes a loud noise, vibrates, and slows down like it is going to stop. Dealer contacted. Cannot remedy problem. Refer to NHTSA id 01V126000 (suspension related) not reading the encoder, electrical failure-which has been reprogrammed twice and has been temporarily fixed.

- Berwyn, IL, USA

Incident #1: defect in wiring of engine control module caused ECM to short out while driving causing engine to stall. From talking with other owners, this is a known problem on early vehicles. Incident #2: internal component of engine disintegrated causing engine failure. Engine being replaced under warranty. GM aware of this problem with early production vehicles.

- Santa Ana, CA, USA

While driving vehicle it will shut off without warning. Also, cannot restart vehicle. Vehicle had to be towed. Contacted dealer, and dealer stated it was computer. Dealer replaced computer, but still has not remedied the problem.

- Camarillo, CA, USA

While driving 55mph up a hil speed just dropped to 30mph. Also, stated electronic control module malfunctioned, and lost all power without prior warning. Consumer did state a signal on dash stated contact onsite. Contacted dealer, and dealer changed module.

- Stanwood, MI, USA