really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
39,274 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 Toyota Prius transmission problems

transmission problem

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2006 Toyota Prius Owner Comments

problem #5

Jan 162011

Prius 4-cyl

  • 54,689 miles


My 2006 Toyota Prius was parked in a driveway. I powered it on then tried to put it in drive. The shift kept bouncing out of drive without my moving it, into N, R and finally back into drive at which point I released the hand brake, then eased my foot off the brake pedal. I did not pushed the accelerator pedal in order to turn onto the road slowly. But the car suddenly accelerated really fast. As it did so the red triangle 'problem - check engine' symbol came up on the dashboard. The car went across the road and into a neighbor's front yard where there was a lot of snow and a snowdrift by the road, and ran straight into the snowdrift which stopped it. I was then able to turn off the power. The foot brake had no effect. The car was heading on a line at right angles to the house and had there not been that snowdrift there, would have hit the house head-on. This was not driver error, but 'uncontrolled acceleration'. there may be a connection to the following battery failure: On 1/11/11 a recently installed start-motor battery (installed 1/3/11) went dead, after 1636 miles, and had itself to be replaced. The car is now being checked by the local Toyota service and dealership.

- Crompond, NY, USA

problem #4

Feb 142007


  • 15,000 miles
The contact owns a 2006 Toyota Prius. The contact stated that in extremely cold weather conditions (20 degrees below), the automatic transmission would begin to slip and not shift. It would make a noise and not engage the engine. He noticed the issue everytime the weather was extremely cold. He took the vehicle to the dealership and the vehicle was test driven with the dealer. The problem was duplicated and he was told that he would have to let the vehicle warm for at least 5 minutes before driving. He had not spoken with the manufacturer to-date. The current mileage was approximately 95,000. The failure mileage was approximately 15,000.

- Finlayson, MN, USA

problem #3

Jan 072010


  • 85,178 miles
2006 Prius was arriving at work and pulling into a parking space. My foot was removed from gas, but accelerator stuck open. The car bounced over the concrete curb, over a snow bank and over a second curb into the university driveway. Car sustained $3800+ in body damage and another $370 in service repairs for brakes, tires, suspension and dash warning systems that erupted. Vehicle was recently repaired. Local dealer would not accept any responsibility or acknowledge any problems with the car. Final repair invoice states the vehicle floor-mats, ABS and pedal stroke sensors were all working properly. Claim was made to our insurance company [erie insurance].

- Annapolis, MD, USA

problem #2

Feb 042010


  • 100 miles
I have a 2006 Prius. When going over bumps, I experience a total loss of power for 1 or three seconds -generally. A yellow light also comes on the dash board. It often happens daily. I have only had one or two experiences when the power didn't return so quickly and then I was afraid because I had no brakes and was just skidding. I believe that I have seen this problem discussed by other Prius owners of chat sites. It can occur at any mileage speed but I was only able to put a mileage number in the box can it be fixed?

- Wayne, NM, USA

problem #1

Jul 312007


  • 41,404 miles
The contact owns a 2006 Toyota Prius. The contact was driving approximately 30 mph on normal road conditions. There was pressure applied to the accelerator pedal, followed by an unintended increase in acceleration. The driver applied pressure to the brake pedal and the vehicle failed to slow down. The gear shift failed to operate in the "neutral" position. In addition, the entire gear indicators illuminated at the same time. The vehicle was driven into a barrier of dirt as a result of the vehicle coming to a complete stop. The failures occurred on four separate occasions. The vehicle was towed to an authorized dealer. The technician was unable to duplicate the failure. The vehicle has not been repaired for the malfunctions. The failure mileage was 41,404.

- Studio City , CA, USA

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