The contact owns a 2011 Toyota Tundra. While driving approximately 60 mph, the ABS, check engine, and 4 wheel drive low sensor lights illuminated. The vehicle's speed suddenly reduced to approximately 30 mph. The vehicle was taken to the dealer where it was diagnosed that the air pump assembly unit was faulty. The vehicle was not repaired. The manufacturer was notified of the failure. The VIN was unknown. The failure mileage was 70,000.

- Chesapeake, VI, USA

Secondary air injection system switching valve stuck open bank 2. experienced P2442 code and vsc illuminated on dash. Truck was started on a normal morning when problem arose. Current mileage on truck is 64,277. Warranty for air injection pump system needs to be extended to newer model Tundra. There is a current warranty on 2007-2010 model Tundra

- Bay City, TX, USA

Secondary air injection system switching valve stuck open bank 2. experienced P2442 code and all lights illuminated on dash. Truck was started on a cold morning when problem arose. Current mileage on truck is 44,253. Warranty for air injection pump system needs to be extended to newer model Tundra. There is a current warranty on 2007-2010 model Tundra.

- Jonesboro, ME, USA

My 2011 Toyota Tundra while it was being driven the engine light came on. It was driven to a nearby O' reilly's for a code check. The code was P0418 which is the air induction pump which is an emission's code. The truck then went into a limp mode while driving home on a busy city street which meant it would not accelerate over 35 mph. This is a very dangerous situation not having the ability to go any faster due to an emission's code putting the truck into a limp mode. After researching this problem I found out that Toyota has extended the warranty for this air injection pump for the 2007-2010 Tundra models. Toyota has refused to help cover the cost for this repair even though it is a known problem on Tundra. I read that the same faulty air pump which allows moisture to enter is still being used in my 2011 Tundra model. This is a $2,200 repair which Toyota should cover since it has occurred to their earlier models and mine as well. Not only is this a costly repair, but also a very dangerous situation when your vehicle is unable to accelerate on an emissions problem.

- Westlake, LA, USA

The contact owns a 2011 Toyota Tundra. While driving approximately 50 mph up a hill, the speed independently decreased to 25 mph without warning. The failure recurred on several occasions while driving at various speeds. The contact stated that the check engine warning indicator was constantly illuminated. The vehicle was taken to the dealer where it was diagnosed that the secondary air pump was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 50,000. Updated 12/03/15

- Mexico, ME, USA

The contact owns a 2011 Toyota Tundra. While driving at 60 mph, the vehicle decelerated and the engine and slip differential lights illuminated. The vehicle was taken to the dealer, where it was diagnosed that water intrusion codes P2440 and P2441 needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 90,000.

- Hernando, MS, USA

Vehicle would not accelerate past 40mph. This occurred suddenly while driving. Dealership determined it was air injection pump failure. After discussion with master mechanic and a service manager I found that this problem was diagnosed it earlier models up to and including 2010 Tundra where Toyota took care of the repair. But they continued to use this part until late 2011. My truck was delivered in fall of 2010 and had the older style part. They changed the part design and now it prevents moisture to enter the pump and prevents corrosion which caused pump failure. The original part had flared head tubing and no seal the new design has a sealed tube end. Toyota new this would fail yet they did not make the recall I have requested a reimbursement but the have so far failed to do so this cost me over $2400 this expense should be entirely on Toyota

- Dansville, MI, USA

"on 12/26/2014, I started my Tundra, placed it into gear after a 30 second pause and proceeded to literally stand on my breaks to stop the vehicle from lurching forward. The back tires spun causing smoke to emanate from the screeching tires. At the time I placed the vehicle in gear, a pedestrian was walking in front of the Tundra. I almost squashed them."

- Boones Mill, VA, USA

On sun. 10/11/14, I drove our Tundra on the highway when it lost power. The engine raced and rpms increased, but the speed fell and no acceleration was possible. On a hill, speed fell to about 15 mph. I was on my way to pick up my horse and trailer; if I had been towing them, it would have been catastrophic especially given the highway speed traffic. It was still dangerous even without the trailer. I turned on my hazard lights and limped off. "check engine" lit up. Took to dealership the next day, who said check engine code was "P2445" for "secondary air injection system water intrusion" requiring replacement of the air pump assembly, air pump inlet, emission valve set, etc. For $2600 because water invaded the system. The service tech said that this was not a known issue, but my internet search showed that Toyota issued a 12-page 2011 technical service bulletin, stating that "the air pump assembly inlet has been updated to prevent water intrusion." Toyota has neither recalled the defective inlets nor notified owners. The tsb says only trucks under the 36,000/ 3 year warranty are covered. Tundra are tow vehicles and it is foreseeable how unsafe this is. Because my truck was sold just over 3 years ago, the local dealership at first could not cover it. I contacted Toyota headquarters, who referred me back to the local service manager, who then reached southeast regional Toyota office, which finally agreed to cover the repair. When this air pump inlet fails, it allows water to enter the air injection system and the system to then fail in the dangerous way that occurred in my case, resulting in a sudden loss of power. I am concerned about this happening to others and that the dealers seem unaware of this tsb and this "known issue." Tsb link is here: www.autosafety.org/sites/default/files/imce_staff_uploads/T-sb-0160-11.pdf.

- Chapel Hill, NC, USA

The contact owns a 2011 Toyota Tundra. The contact stated while driving at various speeds the vehicle decelerated to 25 mph and did not regain acceleration. The failure was experienced numerous times. The vehicle was taken to the dealership a diagnostic was performed which located the failure at the secondary air pump system. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 50,000. Updated 9/4/14

- Mexico , ME, USA

On their 5.7 liter engine knocks when you first take off. Sounds like excessive piston slap from the motor being bored out to big during production. I have contacted a Toyota dealer and Toyota themselves and was told this is normal. With this excessive clearance it will cause the engine to have a shortened life. The way to fix it is to rebuild it or replace the motor.

- Gillespie, IL, USA

Truck's computer is reading an incorrect perceived alcohol density. Truck has a flex fuel engine and the computer is telling the engine that there is ethanol in the fuel system while there is not. I have never run ethanol in the truck yet the computer is reading that there is a 30-50% alcohol density in the fuel. The problems that have resulted from this are missing while under power and power loss while driving. Have had my truck to multiple dealers over 5 times now. The dealers have continued to re-flash my truck's ECU only to have the problem to come back because the ECU is a learning ECU. Toyota has released a fix for 2012 and 2013 models but not for the 2011 models which is leaving me stranded. I pull a boat frequently and the loss in power has significant negative effects on towing. This problem also causes the engine to run lean resulting in poorer fuel mileage and increased costs for me. I've talked with people at Toyota corporate and they have told me that there are no plans to release a fix for the 2011's and that there is basically nothing that I can do. So now I'm stuck with a truck that is reading the fuel wrong and causing the truck to run lean which is surely gradually damaging the engine which I'm sure will result in lots of repairs after the truck is out of warranty.

- Richmond, KY, USA

High idle -cold start, truck starts in morning or when left for a time at 1600-1800 RPM it sounds like its screaming, ,stays there for appox 3 minutes then goes to 1300 and 1100 but does not drop down after 5 min, if vehicles is driven or put in gear, depending on how long up wait the truck will pull you along by itself, then after 1/4 or half mile idle comes down 750-800 RPM, Toyota says its normal can be driven, I specifically asked the asst service manager, to show me in Toyota manual what the cold start idle speed is Toyota spec are, he would retrieve info and did not, truck did not have this problem from the start just about 3 months old, been to dealership 5 times, they say it fine and normal, no codes, according to internet and other complaints it causes piston slap and engine sounds abnormal.

- Port Richey, FL, USA