This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.
So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.
While accelerating from a stop transmission hesitates and then jerks into gear. Dealer has inspected vehicle, but could not duplicate or correct the problem.
Allison transmission problem: While in overdrive with a towing load going uphill, the transmission will downshift in or out of cruise control, causing the engine to increase speed up to the danger zone of 3300rpm. The vehicle was checked by the listed dealer, whom noted that General Motors has no correction available for the downshifting and engine racing in overdrive. This complaint is to register this observation with my vehicle.
With cruise/speed control set/on transmission repeatedly downshifts below 4th. And 3rd. Gears into 2nd. And 1st. Gears causing erratic acceleration, excessive vibration and fatally high engine R.P.M. revving at highway speeds.
A D V E R T I S E M E N T S
- San Lorenzo, CA, USA