I was merging into traffic on to mass 93 highway when my check engine light, trac off light and blinking 4 loe came on. The engine went into limp mode greatly reducing my power and I lost control and. I had to pull off the lane. I was able to make it to the next exit and get to a mechanics shop. They hooked up a analysis computer and came back with maintenance code P2432, secondary air pumps and secondary air pump valves. I found out that this has been an ongoing issue with Toyota Tundra going back to 2007 models. The warranty has been extended on 2007 - 2010 models but not newer models which are still experiencing the same problem.I feel this problem constitutes a potentially dangerous safety hazard due to the drastic reduction in power which could cause an accident depending on when the parts in question fail.

- Boston, MA, USA

I was coming off an entrance ramp merging into traffic on to a 4 lane highway when my check engine light, trac off light and blinking 4 loe came on. The engine went into limp mode greatly reducing my power and it felt like my steering control got loose. I had to pull off the road to keep from being run over by faster traffic. I was able to make it to the next off ramp and get to a mechanics shop. They hooked up a analysis computer and came back with maintenance code P2432, secondary air pumps and secondary air pump valves. Upon further research of this issue I have found out that this has been an ongoing issue with Toyota Tundra going back to 2007 models. The warranty has been extended on 2007 - 2010 models but not newer models which are still experiencing the same problem. My vehicle is considered low mileage for a 2012 with only 79,786 miles. I feel this problem constitutes a potentially dangerous safety hazard due to the drastic reduction in power which could cause an accident depending on when the parts in question fail.

- Danville, VA, USA

Secondary air injection pump and secondary air injection switching value causing check engine and trac control lights to come on. I was told by the dealer that the same piece and design was recalled on the 2011 but not the 2012 Tundra. It comes on and off but when it is on it feels like that there is a limp mode making it difficult to get up to speed on the highway. The steering feels different which I think is the traction control.

- Houston, TX, USA

I see several other complaints here with my exact problem. The secondary air injection system relay and secondary air injection system switching valve. Obd II codes P0418 and P2442. My experience is the same as other complaints in that my truck is now permanently in limp mode and cannot be driven due to these known defective parts. On pre-2012 model Tundra Toyota has extended the repair warranty to 10 years/150,000 miles as this is a widespread problem. For some reason they will not include later year model trucks like my 2012 4.6 liter. This is a safety issue as the truck slowed severely in traffic and will not accelerate or go up any hill. Cars behind me in traffic had to swerve around me. I was stuck dead at the bottom of a hill as these chronically failing parts shut down the vehicle's power. Toyota customer care has denied my attempt to seek compensation or repair of these parts that they know are defective. The fix needs to be extended to all year model and engine size Tundra as these defective parts exist on models past 2011. A side note, somehow these defects are reported to be affecting the vehicle skid control as that warning light comes on when these parts fail on most of the affected Tundra.

- Raleigh, NC, USA

The contact owns a 2012 Toyota Tundra. The contact stated that the vehicle slowly accelerated from a stop sign when the accelerator pedal was depressed. In addition, the stability traction control warning indicator illuminated. The failure recurred on numerous occasions. The vehicle was taken to an independent mechanic where it was diagnosed that the air injection failed and needed to be replaced. The vehicle was not repaired due to the repair fees. The vehicle was not taken to a dealer. The manufacturer was notified of the failure and opened case number: [xxx]. the approximate failure mileage was 77,023. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Scottsbluff, NE, USA

Truck in limp mode. Would not exceed 40mph. Vehicle limped home and towed to dealer. Rodents had chewed electrical wires per Toyota dealer. Upon investigation Toyota began using soy-based wiring in their vehicles instead of petroleum-based and didn't notify their customers. Soy-based products in vehicles have been known to "attract" rodents versus petroleum based products. My 2012 Tundra was still under warranty and Toyota denied said warranty because it wasn't a "failure" of their parts. The vehicle would not accelerate properly or steer properly because the traction control and ECM had failed. This could cause serious injury or harm due to an unsuspecting interruption in speed and traffic flow, as a result of wiring separation occurring while operating the vehicle.

- Winchester, KY, USA

My 2012 Toyota Tundra is equipped with Toyota's vehicle stability control (vsc). One of the features of the vsc is when the computer perceives a loss of traction, the computer (without the driver's consent) attempts to correct the loss of traction by braking and/or engaging one or both of the front tires. In November of 2016, the vsc on my Tundra (with only 43K miles) began to fail and instead of becoming inoperable and doing nothing, the vsc attempts to engage the front tire(s) during routine turning movements. This causes a jerking sensation in the steering wheel and the vehicle pulls sharply to one-side. This could cause a loss of control. The vehicle has been to the dealer three times and I have spent nearly $2,800 trying to correct the problem. To date, Toyota has been unable to correct the problem or disable the feature. It is my opinion the vsc system in the 2012 Tundra is unsafe. This is not only based on the fact I am the owner of a defective Tundra, prior to retiring in November 2015; I worked for the California highway patrol for more than 27 years as an officer and sergeant. I investigated numerous traffic collisions, worked in specialized investigation units and received advanced training in traffic accident reconstruction. I know firsthand that a sudden and unexpected pull on a steering wheel, such as I am experiencing in my Tundra, could cause a driver to lose control. Therefore, it is my opinion based on the aforementioned that the vsc system on the 2012 Toyota Tundra is defective and potentially dangerous.

- Redding, CA, USA