2012 Toyota Tundra: check engine light

Filed Aug 8, 2024 · Engine, Fuel system · NJ

Wife was driving truck and immediately went into limp mode on the highway. Check engine light came on, no accelerating then died. Had to get it towed. This is the 3rd incident with this issue.

Filed Feb 14, 2024 · Fuel system · CO

The fuel pump failed on my Tundra. Several dashboard check engine lights suddenly lit up to warn me of the issue. While I was able to safely get it to a mechanic to repair the independent Toyota certified mechanic I use shared they have seen a volume of these where the car stops immediately with the Fuel pump failing completely. I was lucky as the day prior to this I was driving through mountain passes on the highway in Colorado. I have since found out from the feedback from my mechanic that they have repaired a volume of these, and it is a known issue by Toyota who issued a technical service bulletin. The fuel pump needs to be replaced with a different specification - the original pump is not sufficient. My concern is putting driver/passenger safety at risk with a complete fuel pump failure while driving. I consider this a near-miss for me, and would worry about others that are about to have this issue.

Filed Jan 5, 2023 · Engine · 98,000 miles · CA

The contact owns a 2012 Toyota Tundra. The contact stated while starting the vehicle, the check engine warning light was illuminated. The contact stated that the light stayed illuminated while driving. The contact had taken the vehicle to an independent certified mechanic where it was diagnosed and determined that the secondary air injectors needed to be replaced. The mechanic informed the contact that the manufacturer had offered an Extended Warranty Program to cover the failure under "Warranty Enhancement Program ZG6" for "Air Injection Pumps and Air Switching Valves" and that the warranty had expired several months prior. The vehicle had not been repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 98,000.

Filed Oct 24, 2021 · Electrical · TX

Started my truck and the 4lo, check engine and trac off lights came on. The 4lo was blinking.

Filed Sep 28, 2021 · Engine · GA

Check engine light which when checked revealed Air pump and air control valve failures. This is a known problem with 2006-2011 Tundras that Toyota issued an extended warranty for 10 years or 150,000 to replace these parts. There was additional extended warranty for 2012 with 5.7 Liter engine but not the 4.6 liter engine. Safety issue is when total failure occurs vehicle goes into limp mode with max speed of 25MPH which would be bad at highway speeds. Code was run by repair facility and copy is enclosed. Email was sent to Toyota corporate and upon phone call follow up, Toyota refused to do anything towards the defect.

Filed Jun 3, 2021 · Engine · 95,899 miles · IL

The contact owns a 2012 Toyota Tundra. The contact stated while driving 25 mph, he heard an abnormal sound, and the check engine warning light illuminated. The contact drove to his residence. The contact took the vehicle to the local dealer, where it was diagnosed with needing the secondary air injection system to be replaced. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was 95,899.

Filed Mar 3, 2021 · Transmission · 131,400 miles · LA

Check engine light and trac off light came on. Car automatically reduces speed causing difficulty pulling out into traffic. The secondary air pumps are defective. Something toyota is aware of but does not include my model. No help from there warranty department. Problem happened as I was pulling out into traffic and did not have enough speed to get out of way of incoming traffic.

Filed Jan 4, 2021 · Engine, Transmission · 115,000 miles · LA

Tl* the contact owns a 2012 toyota tundra. The contact stated that the vehicle was purchased with the check engine warning light illuminated. The vehicle was repaired at john harvey toyota (2901 benton rd, bossier city, la 71111, (318) 741-1337). The contact stated that after the vehicle repaired, the transmission failed and the contact returned the vehicle to the same dealer where the transmission was also repaired. The contact stated that the vehicle failed to accelerate above 25 MPH and was taken to an independent mechanic to be diagnosed. The mechanic determined that the secondary air injection system failed and needed to be repaired. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 115,000.

Filed Oct 20, 2020 · Driver assistance · 105,000 miles · MA

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 tundras 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.

Filed Aug 7, 2020 · Fuel system · LA

The trac off light and check engine light cans on at the same time. I took it to toyota and they said there was an extended warranty of 10 years of 150,000 miles. If it was the secondary valves and air pumps. I got a call back and they said it was, big my VIN was not part of the extended warranty. This is an issues with 100s of tundras. This is a safety issue. Because you can't go over 60 or get to 60 safely. The toyota blogs are full of tundra owners complaining. This needs to be fixed.

Filed Jul 30, 2020 · Fuel system · 87,860 miles · LA

My 2012 tundra had a trac off and engine light come on. This is the same problem for numerous toyota tundra in regards to failure of the secondary air valves and pumps. I was told my VIN number was not on the 10 year , 150,000 mile warranty for this same problem. I urge you to force toyota to add my VIN number to the extended warranty. My vehicle cannot go over 60 and be safe. It was raining and rain got into the pump system. Toyota has replaced thousands of these badly designed system and more needs to be done. It cost over $2,000 to replace badly designed system.

Filed Jun 18, 2020 · Acceleration, Engine · 87,130 miles · WA

Check engine light went on. Got a code p0418-vehicle will go limp/not able to go over 25mps. Toyota has a warranty repair program in place for all 2012 tundras with a 5.7 size but not mine because it is a 4.6 even though it is the exact same problem!!!