I had 2 occurrences of unintentional acceleration. Both events transpired as follows: 1) applied brakes in preparation of starting engine and engaging transmission. 2) started engine, put it in "drive" and engine suddenly accelerated and jumped forward. 3) I immediately applied brakes with maximum effort to counter the acceleration. 4) threw shifter into "neutral" while engine was maxing rpms, then I shut down engine. Both events were close calls. If I had not had presence of mind I would have destroyed the vehicle and property. Vehicle was evaluated by local Toyota dealer and they say they found no reason for the events. I contend that there is an issue and need to have it pursued.

- San Dimas, CA, USA

Front differential went out at 48K miles. It cost me $2000 to replace. I read various blogs and this is a common problem on many Tundra built between 2007-2013. I don't drive my truck very often and I treat it very gently. This was a huge expense bill for anybody to absorb.

- Fort Collins, CO, USA

At about 90,000 miles, tail-shaft seal leaks, replaced seal and U-join, again at about 140,000. Gears feel like stuttering when step on accelerator.

- Arlington, TX, USA

The contact owns a 2007 Toyota Tundra. The contact stated while driving approximately 25 mph the RPM's increased to 800. The failure also occurred while at a complete stop. On a separate occasion while idling the vehicle slowly accelerated up an incline independently. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 23,500.

- Coco Beach, FL, USA

After trying to switch my truck into 4 wheel drive lo, the 4 wheel lo light & symbol would flash and never engage. I tried many times, making sure the vehicle was on a level surface, at a compete stop with emergency brake engaged, shifting from 2 wheel drive to 4 wheel hi and then place the vehicle in neutral, with my foot on the brake and tried to switch into 4 wheel lo....nothing, it will not engage. It will however shift back to 4 wheel hi and back to 2 wheel drive. Please keep in mind, I only use 4 wheel drive hi, during snow storms in nh and only use 4 wheel lo to drive up my driveway, in very deep snow amounts (16"-20" depths). After finding this very disappointing problem, I scheduled an appointment with our local Toyota dealer. They had the vehicle for the day and was able to replicate the same problem. According to the tech and service manger, it was determined that the 4 wheel drive actuator has failed, thus requiring the replacement of the transfer case, actuator and a computer program? any ways this was a Toyota service bulletin which referred this remedy fix and at the cost of (drum roll please) $5,200 are you kidding me! I'm an ex auto mechanic and perform a majority of my scheduled service and go to Toyota for other maintenance repairs and or service, in fact my entire family vehicle history can be found at this dealership proving our due diligent vehicle up keep and loyalty. Now don't take this the wrong way, this nh Toyota dealership has been great and help us with many other expensive repairs and I'm not blaming them. I point the blame at the Toyota corporation, for not stepping up to make this repair as a priority, after all my family has owned (10) Toyota vehicles over the past 20 years and all of them have reached the 150K - 180K miles without this problem occurring.

- Litchfield, NH, USA

Recently while driving my 2007 Toyota Tundra, my driveshaft fell out of the slip yoke at the front of the truck behind the transmission. After a shuttering of the truck I finally stopped. Luckily, I was only going 10 mph and the damage was limited to the requirement for my drive shaft to be replaced. This is an item identified by Toyota as a problem, however, my VIN was not included in the safety recall. It seems with limited mileage on the vehicle, a catastrophic failure of the drive train would not have taken place. Updated 01/23/14 updated 01/23/14

- Henderson, NV, USA

I tuck my Tundra to the mechanic for check a noise when I'm driving an he told me the problem is a rear axle bearings and told me the Toyota they built this truck with small bearing for the size of this truck, and they Toyota already known. The cost for is $1500. What can I do if they knew the problem so they needs to pay.

- Rockfiel, KY, USA

Transmission mount broke (snapped).

- Oakley, CA, USA

When making turns there was a grinding/scrapping noise from rear wheel area. Dealer confirmed worn rear wheel bearings requiring a Toyota update kit to better prevent repeat failure. If multiple parts needed updated perhaps original items were not properly designed?

- Clarion, PA, USA

The starting date and mileage above is approximate. A sensation of being rear-ended a kind of bump or clunk. Your stopped at an intersection and then clunk. Or, just before taking off from being stopped at an intersection "clunk". the frequency of this symptom started off as just once in a while when first noticed at around 36K miles. Now with 58,000 it happens on a regular basis, say, every 50 miles or so. I keep a mileage log for my business and began documenting when this occurs. I presented this issue to the dealer twice but have failed to replicate it for them to experience.

- Kyle, TX, USA

Bought a 2007 Toyota Tundra. Noticed around 23,450 miles that something was turning (spinning) and felt like it was coming through the driverside floor. Right underneath my feet. Brought it in Toyota said they didn't find anything. Later heard noises on the left side of engine near left tire. Then shaking and vibrations followed. Around 60,000 miles transmission started slipping and clunking noises came from the engine. 65,000 miles started losing power. Fuel pump failure. Paid for a new fuel pump system $777.79. Turns out 2007 model has to replace whole system. No other Tundra needs to. At 68,000 miles it got worse. Transmission diagnostic says transmission needs to be replaced. $4500. At 96,000 miles my truck in non operating. Toyota will not replace transmission. Even though a Toyota operations manager states it is not normal for transmission to go out this soon at so little mileage. The average time is between 15-20 years with the high technology that cars are built with now a days. Is what he said to me. Older cars built years ago transmissions normally last around 5 years sometimes 10 if they were lucky. So supposedly our vehicles are built smarter now adays. I have so many problems I find that hard to believe.

- Alameda, CA, USA

When I have come to a complete stop, the car lunges, rather it feels as if another vehicle has bumped me from behind.from day 1 almost they told me it is "normal" I have been driving 45 yrs. And this is not normal. This is a mfg. Defect that is probably so expensive to repair that they are leaving it to the owner to repair after the warranty runs out I have 32,000 mi. On it and it continuously does this on a regular basis.help!!!!!!

- Houston , TX, USA

Turned the truck on and the check engine and traction control lights were both on, 4 lo and vsc off lights were both flashing, the truck sounded noticeably louder and now has a loss of power. Codes show P2440.

- Rochester, NY, USA

When stopping for a traffic light/stop sign from 40-50mph, the truck stops normally. After about 1.5 seconds when at a complete stop, the truck gives a kick. It is severe enough that it feels as if you had been rear ended. The whole truck shutters. I took it in to the dealership who gives the, "I can't duplicate it" spiels. My tranny fluid was low due to a leaking rear seal so they blamed it on that. They changed the aluminum front driveshaft as they stated it caused the leak. Problem never went away. Does not happen at any other time. Suspect the first gear clutch packs are releasing and re-engaging. Could be mechanical but it is also a possible problem with the transmission ECU. Similar issue with the 2007-up Camry which was determined to be the torque converter.

- Emory, TX, USA

The contact owns a 2007 Toyota Tundra. The contact stated that the brakes were depressed and the vehicle lunged forward abnormally. The contact also stated that while driving 45 mph and depressing the accelerator, a loud banging noise was exhibited from the engine area as the vehicle decelerated independently. On a separate occasion while the vehicle was attached to a trailer, the vehicle failed to shift out of third gear on and then failed to shift out of fourth gear later. The vehicle was taken to the dealer and the manufacturer was contacted. The vehicle was not repaired and the VIN was unavailable. The failure mileage was 9,000 and the current mileage was 92,000.

- Deltona, FL, USA

When coming to a stop, I feel a clunk and after coming to a complete stop, it feels like another vehicle bumps the rear bumper. This has happened since I bought the truck but Toyota dealer says that's normal, nothing wrong. The problem seems to be getting worse.

- Midwest City, OK, USA

My vehicle set a dtc P2440 for the secondary air induction valve stuck open. I have been told this repair is not covered under warranty due to water intrusion. The only problem is that my vehicle has never been under water or off road. This is a design flaw/engineering defect that Toyota created and should be treated as a recall for all affected models for replacement for a better or redesigned part. The cost of replacement for the affected parts is beyond reasonable for all Toyota owners. Toyota needs to step up and fix there flaw. I pulled out onto a public road and had no power and was nearly involved in an accident due to this problem. Its not safe and very dangerous.

- Gloucester, VA, USA

Drive yolk went out and blew the rear transmission seal. Could have dropped the drive shaft and caused serious injury. Over 2000 dollars to repair. This truck has been maintained to the tee, all maintenance done on the dot! very well taken care of. The truck is with high mileage, 90,000. However, we were told at time sale it had a 100,000 mile power train warranty in which there was no worry there because if maintained it would last for 300,000 plus miles.now we are told that is not so it was not 100,000 miles, it was only 60,000. The truck was very well maintained, all highway miles, drive 50 miles one way to work everyday on interstate, never taken off road, never pull anything. Well so much for honesty, because they basically told me to bad, so sad. I see Toyota is recalling all the 2011 models for drive yolk failure, and I have seen quite a few complaints on various places online on the 2007 Tundra"S drive shaft/yolk. They did recall the driveshafts for the 4X4 Tundra in 2007, but not the 4 X 2?S. can?T they see there is a problem here also" the truck always felt like something was bumping you when you stopped. We were just told it was normal for the Tundra. So watch out folks with lower mileage. I bought a Toyota when I was going to get another vehicle with a longer bumper to bumper warranty but the Toyota salesman talked us out of it with his 100,000 mile (lie) power train warranty and his 300,000 mile comments. Well, what do I do now? this is ridiculous that they will not stand behind there product or even offer a discount, just a sorry about your luck!

- Kilgore, TX, USA

Purchased 07 Tundra in Aug 2010 and by Dec 2010 we had issues with 4WD gauges blinking/dinging and loss of power/acceleration. Followed the manual and no fix. Problem eventually quit after about 3 days. Problem resumed on 2/14/11 and took to auto shop to have diagnosed. Code P2440 was given and we really do not want to return to the local Toyota dealer due to lack of quality sales and service. Also do not have the estimated $1300+ to fix problem. Help Toyota, why do we read that this seems to be a common problem with Tundra having 50K+ miles?

- Ottawa, KS, USA

ABS, trac and 4hi warning lights all on while driving. Vehicle ABS and trac control all ceased to function. Was driving in slippery road conditions. Almost lost control of vehicle. After stopping vehicle, 4hi would not engage. This is 4th or 5th time this has occurred over the past 2 years. Mostly occurs during cold weather but not always. Have taken truck to dealer after these occurrences and 2 of the times the dealer has been able to replicate the situation. When truck is in state of flashing lights, the truck always returns to normal when you turn off vehicle, wait and then restart it. Dealer has replaced parts now 4 times and still having the same problem

- Chapel Hill, NC, USA