NHTSA — Power Train: Automatic Transmission Problems

CarComplaints.com Seal Of Pretty Good

CarComplaints.com Notes: The 2006 Buick Rainier has a lot going for it and just a few issues that keep it from making our "best vehicles" list.

The good news is the SUV has a quiet interior (thanks to triple door seals, acoustic laminate glass, and thicker sound-absorbing pads), a low number of overall complaints, and a RWD system which offers good balance and handling.

Unfortunately, it received poor safety ratings in crash tests, owners report that the gas gauge is unreliable, and there was a large recall for melting power window switches.

So close, Buick. So close.


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
55,500 miles

About These NHTSA Complaints:

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.

2006 Buick Rainier transmission problems

transmission problem

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2006 Buick Rainier Owner Comments

problem #2

Jul 172011


  • 73,000 miles


We have had numerous electrical and mechanical problems. The fan motor control module when out, then the module that controls the fuel indicator and display went bad. Now less than 6 months later the transmission has gone bad. It is only working in 2 & 3. no overdrive or first. This last problem suddenly started on 7/17/11. Our mechanic came and checked it out (he did not want us to drive it) and said the transmission was only working in second and third and we should not drive it and needs to be replaced or repaired. We are still paying for this car and for the last repairs on this car. I have seen several complaints and service bulletins on this problem and the problem with the gas gauge. Has there been any recalls or acknowledgement of these problems by GM?

- Troy, NC, USA

problem #1

Aug 312010


  • 38,000 miles
Possible fire hazard and accident due to oil cooler line corroding out. Normal driving. Repair and replacement of oil lines. This was only by shear luck that this was not a serious accident or fire with injuries or death.

- Hannibal, NY, USA

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