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2.8

hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
51,239 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.

2012 Toyota Tundra fuel system problems

fuel system problem

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2012 Toyota Tundra Owner Comments (Page 1 of 2)

problem #24

Feb 022024

Tundra

  • miles

A D V E R T I S E M E N T S

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.

- Centennial, CO, USA

problem #23

Nov 262023

Tundra

  • miles
ECM safety recall air injection pump failure

- Silverhill, AL, USA

problem #22

Dec 012020

Tundra

  • miles
2012 Toyota Tundra has a known design flaw in that moisture is allowed to condense, accumulate and corrode in components of the secondary air intake system leading to decrease performance especially in regards to acceleration which is critical to operating a vehicle safely.

- Corpus Christi, TX, USA

problem #21

Aug 032020

Tundra

  • 87,000 miles

A D V E R T I S E M E N T S

Very serious malfunction with air injection pump. This happened to occur after filling up the gas tank. Multiple dashboard lights came on and the truck went into limp mode. This could have caused a serious accident while on the highway. $2000 plus in repairs for a very dangerous and apparently well known problem with recalls issued in previous model years of Tundra and other models of Toyota trucks.

- Hillsborough, NJ, USA

problem #20

Jul 312020

Tundra

  • 0 miles
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 Tundra. 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.

- Mandeville, LA, USA

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problem #19

Jul 272020

Tundra

  • 87,860 miles
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.

- Mandeville, LA, USA

problem #18

Nov 272019

Tundra 8-cyl

  • 101,000 miles

A D V E R T I S E M E N T S

2012 Toyota Tundra 4.6 L at 101,000 miles went into limp mode causing a lack of power and acceleration during city driving which could have resulted in a rear end collision. Was able to limp vehicle to nearby Toyota dealer who diagnosed that the secondary air injection system was faulty. Cost to repair was more than I wanted to pay beingthat I had just purchased the truck within the past month or so. Toyota did not cover the repair so a bypass kit was installed at my expense to get the truck back under power. Contacted Toyota and they advised that the system was not covered however it should be noted that on 2010 models and others the warranty on the system was extended to 150,000 but not on the 2012 4.6L engines that have the same problems as the others.

- Roanoke, VA, USA

problem #17

Apr 082020

Tundra 8-cyl

  • 97,000 miles
The contact owns a 2012 Toyota Tundra. The contact stated after the check engine light illuminated, the vehicle was taken to walker Toyota (5735 coliseum blvd, alexandria, la 71303) to be diagnosed. It was determined that there was a hesitation in response when the accelerator pedal was depressed. The vehicle was not repaired. The manufacturer was notified of the failure but offered no assistance. The failure mileage was 97,000. Consumer stated manufacturer is aware of the issue with 2010,2011, and 2012 fuel/propulsion system (pws) Toyota Tundra. Update: Toyota technician stated issue may be pumps and valves.

- Columbia, LA, USA

problem #16

Feb 142020

Tundra

  • 129,000 miles
Check engine and traction light came on. 4lo sign flashed. Vehicle goes into limp mode, slowing down, and at times creeping along while the vehicle was in motion on the highway. There is a large decrease in performance especially going up any sort of incline. Took it to the Toyota dealership for evaluation. They recommended replacement of the fuel pump and was told Toyota is aware of this problem and this make/model is not part of the recall at this time. I called the Toyota hotline, and the worker verified she could see info on the recall talking about warning signs -but they were not specific. She forwarded on my information to another individual. That individual called today, and she advised my warranty was over and my vehicle was not included in the recall.

- Somers, MT, USA

problem #15

Oct 092019

Tundra

  • 78,000 miles
My truck has been having hard start issues since winter 2017. I figured it was my battery so I replaced it, but it didnt help. The hard start wasn't consistent so I chose take some time to see if any other problems surfaced. Got through winter 2018 and spring/summer 2019 with it still starting rough on occasion. By October 2019 my truck reached approx 78K miles, and one day it didn't start at all. Took three tries to get it going. I had the battery checked once again. It tested bad but it was under warranty so I had I lt swapped out. The problem persisted. This time it gave me an engine light. Mechanic said it was an 'evap code' and recommended I replace the gas cap to start. Code didnt return but still hard starting. Took almost two months and engine light came back on. This time P1604 startability malfunction. Was told I had to take it to Toyota to get a reflash. I decided to do some research and came across the problems Tundra owners were having with this FFV density sensor malfunction. Printed the old service bulletins and went to Toyota to talk to service dept about it. They said Toyota just put out a new service bulletin in December 2019 for the reflash but now also replacing the fuel pump (Toyota told me density sensor attached to the pump). Unfortunately Toyota also told me they won't cover the cost since my truck had just gone over 80K miles, and they are not flexible with that at all, even though I told them it started before 80K. T-sb-0166-19. So I got prices. The reflash is about $140 and just the cost of the pump itself is $600, not including labor. I have spoken to the Toyota usa customer care team and they said they cant help me since I didnt take it to the dealer to diagnose it. Apparently it doesnt matter if you have service records from another shop. This is my 3rd Toyota, and I love my truck so this breaks my heart.

- Durham, NC, USA

problem #14

May 082019

Tundra

  • 69,000 miles

A D V E R T I S E M E N T S

My 2012 Tundra has just under 70,000 miles on it and the trac light and engine light came on yesterday. Had it looked at and the mechanic says the problem is with the secondary air pump and it is a known problem. Called the dealer and they knew of the problem and told me there is a csp that covers certain 2012 Tundra's. unfortunately the csp only covers the 5.7 L. engines and not my 4.6L model. My mechanic says that everything is the exact same set up as far as the secondary air pump, it's just a different size engine. Not sure why one is covered but the other isn't but I'll have to suck it up and pay the price. Maybe if more people make Toyota aware of this they will eventually cover it. I'm a Toyota fan and have been driving them for 40 years and this won't push me away but it is disappointing.

- Winter Haven, FL, USA

problem #13

Apr 032019

Tundra

  • 86,900 miles
While driving, multiple dashboard lights came on and my truck went into "limp mode, " meaning I lost almost all power while driving in heavy traffic. Turns out this is an issue with the air injection pump, which is a known problem in Toyota Tundra. I believe this is a safety issue that Toyota needs to address.

- Willow, AK, USA

problem #12

Nov 012018

Tundra

  • 56,000 miles
At first I started hearing what sound like a fan running under the hood after I started my truck. About a week later my check engine light came on followed by the track light. Code P2442 which stated that the air injector pumps and valves were failing. We brought the truck to Toyota and they had told us that it would cost us $4000 to get it fixed, after charging us $144.72 to hook a code reader to it which would of cost us nothing to take it to auto zone. Our warranty was supposed to cover bumper to bumper up 10yrs or 100,000 miles with ever came first. They told us that our warranty expired the week before we brought it in.

- Chalmette, LA, USA

problem #11

Oct 012018

Tundra

  • 60,250 miles
The secondary air injection system has failed. It is a common problem on Tundra. Power loss occurs while driving and the vehicle cant get over 45mph.

- Plant City, FL, USA

problem #10

Sep 012018

Tundra

  • 98,000 miles
Code P2440 switching valve. Warranties cover 2012 Tacoma's but not Tundra. Part which is a switching valve causes the vehicle to go from 60 to 30 mph causing an unsafe condition.

- Tampa, FL, USA

problem #9

Jan 182018

Tundra

  • 109,000 miles
Monday, January 15th I drove at 65 mph to work at and home on the freeway with no problems. Tuesday and Wednesday the truck was stationary due to cold weather conditions in houston, Texas. Thursday morning the 18th, I drove at 65 mph to work via freeway with no problems. After lunch I drove at 45 mph back to work on a street and noticed the check engine and traction light came on and simultaneously the truck then starting driving extremely sluggish and and far below the speed limit obstructing the flow of traffic. I carefully got over and drove the truck only allowed at 30 mph back to the office. After carefully driving home via street at the end of the day I got home and removed the negative wire from battery and re-connected it to see if this would resolve the issue. After doing so, the results were the lights in the dash were now off and the truck drove proper with no hindrance. This would last until Wednesday 24th. Both lights came back on and the truck started again driving sluggishly. Its seem that when the light is off the truck drives fine, but when it is triggered the truck is drives extremely sluggish. Could the be a defective part? any help would be useful.

- Richmond, TX, USA

problem #8

Nov 022015

Tundra

  • miles
I experienced an extreme power loss which made it very dangerous to drive. When bringing to the dealership they informed me that the secondary air intake system needed to be replaced at a cost of $4,000. Upon researching I found that this problem has occurred on similar vehicles dating back to 2007. A recall and replacement was issued for all effected vehicles from 2007-2010. It appears that the problem continues after that date but not enough customers have complained or experienced the problem yet.

- San Clemente, CA, USA

problem #7

Mar 242016

Tundra

  • 78,000 miles
After starting the engine, the engine raised past red line RPM for several seconds. After slowing, I started to back out drive when engine raised again into red line RPM. Before I got it pulled back into drive, it raised 3 more times. Each time I managed to get to neutral.

- Magnolia, TX, USA

problem #6

Sep 012014

Tundra

  • 51,000 miles
The contact owns a 2012 Toyota Tundra. While attempting to drive the vehicle, the contact noticed that the check engine indicator illuminated. The dealer stated that there was a puncture in the fuel line. The vehicle was not repaired. The manufacturer was notified. The approximate failure mileage was 51,000.

- Freeport, TX, USA

problem #5

May 162013

Tundra

  • 7,200 miles
Electrical buzzing noise from dash area when pressing gas pedal. Dealer says not a warranty item. After researching online many people experience same issue with several Toyota models.

- Red Oak, TX, USA

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