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hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
48,753 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 Tacoma engine problems

engine problem

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2012 Toyota Tacoma Owner Comments (Page 1 of 2)

problem #25

Dec 132016


  • 122,000 miles


When I was leaving work the other night my 2012 Tacoma went into limp mode and presented the cel and trac off lights on the dash. After reviewing the many blogs on the subject and taking the vehicle to the mechanics, I have found out that the secondary air valve is likely stuck in the open position. The mechanic has quoted me a price of $1,142 ($780 for the part) to replace the whole system (valve not sold separately). I understand that this is a common problem with Tundra/sequoias and 2012 tacos. However, only the Tundra are under any type of warranty. I bought a Tacoma because the last two Toyota's have run 300K miles + with regular maintenance. This type of expensive repair due to poor engineering is ludicrous and should be a warranty issue. I guess Toyota wants to be terrible like everyone else. Great.

- El Dorado Hills, CA, USA

problem #24

Nov 292016


  • 73,000 miles
Check engine light came on, trac off light is on. My truck has no power and is unsafe to drive. The dtc is P2442. Secondary air injection system switch valve stuck open bank 2. Toyota knows they have a emissions issue. My vehicle is at the dealership now.

- Terre Haute, IN, USA

problem #23

Nov 112016


  • miles
My check engine light came on and my vehicle entered "limp mode, " which keeps the car under about 35mph and prevents it from accelerating quickly. The cel read as a secondary air intake system problem (P2440 and P2442). Judging by the multitude of similar complaints I have found, this is a systemic problem that Toyota refuses to rectify for Tacoma but has already admitted to for Tundra. This is a serious danger to drivers if the vehicle enters "limp mode" while they are driving through an intersection or in heavy traffic. It iseems also ridiculous for Toyota to expect Tacoma owners to spend thousands of dollars to fix their poorly designed part, especially considering the part is not vital to the performance of the engine.

- Little Mountain, SC, USA

problem #22

Nov 192016


  • 62,200 miles


Check engine and trac off lights came on. Vehicle acceleration became very sluggish. I felt the vehicle became a safety hazard as it had almost no acceleration. Merging into traffic became dangerous because of lack of acceleration. Had local shop check truck and error codes returned were P2440 and P2442 which they said indicated secondary air injector pump needs to be replaced. Est charge about $2000!

- Conway, SC, USA

problem #21

Oct 262016


  • 79,000 miles
2012 with 78,000 miles, threw codes P2440, P2442. Same as every other Tacoma owner in this year range. Bad valves and pump on the secondary air injection unit. Cost to repair around 1,000 dollars doing the work myself. Very disappointed as this is my third Tacoma and had planned on keeping this one for a long time.

- Goldsboro, NC, USA

problem #20

Sep 122016


  • 45,000 miles
Tacoma went in "limp mode" engine light and trac off light illuminated; cause the car to be extremely under power. Vehicle extremely under power causing to be dangerous in traffic. Code P2442 secondary injection system failure; common to other Toyota vehicles including Tundra's. Toyota acted resumable with Tundra's with extending warranty repairing but at this time refuses to repair known failures in Tacoma's.

- Catlettsburg, KY, USA

problem #19

Sep 062016


  • 57,000 miles


Secondary air injection switching valve failure stuck in open position causing limp mode in the truck. Truck is not able to get to speed above 40 mph. This happened as I was pulling out of my neighborhood onto a state route with speed limit of 55 mph and cars going way faster than that. This could pose a danger if situations where speed it required to get out of the way of another car. Truck only has 57K miles on it. This is a supplemental emissions system and should not cause the truck to be useless if fail.

- Kansas City, MO, USA

problem #18

Aug 302016


  • 57,000 miles
57,000 miles on truck went into limp mode, P2440 and P2442 code showed secondary air injection valve dealer quoted $2000, said they wouldn't cover anything

- Axton, VA, USA

problem #17

Aug 232016


  • 62,300 miles
The secondary air injection pump failed at 62,000 miles. For specifics it showed the codes P2440 and P2442. This was known problem on the previous model Tundra, the service mgr at rodland Toyota said they had already replaced three pumps on trucks of the same year that week.

- Langley, WA, USA

problem #16

Aug 292016


  • 50,890 miles
The secondary injection pump went out.

- Roseburg, OR, USA

problem #15

Nov 052015


  • 23,000 miles


This is a problem with the secondary air injection pump and left me stranded on the roadside...24000 miles on a truck is not even broke in..reliability?..I handled it..only because ive been a mechanic for 25 years...what if it was my wife and kids broke down in getto town...this is a huge problem for many and is so common..ive cleared the codes several times but they always reappear...this is a definate recall...make it so...24000 9N a truck and I cant drive loyalty is fading fast...try to imagine driving your truck down a St.louis 6 lane freeway and your truck says...nope you staying here..on the side of the road...dont get out...youll get ran over...maybe Toyota should have a display on the info center concole that tells you that...and then wishes you good luck...

- Aurora, MO, USA

problem #14

Jul 292016


  • 71,000 miles
I was driving on A50mph highway an check engine light comes on and truck slows to 40mph wont go any faster.

- Deland, FL, USA

problem #13

Jul 192016


  • 45,100 miles
My 2012 Tacoma with 45,000 miles got a check engine light and "trac off" light when I started it to go home. I was merging onto the interstate and unable to go above 40 mph. This was obviously not safe so I exited and took it to a dealer. They cited trouble codes P2440 and P2442 and said they needed to replace secondary air injection valve (pn 25710-31022) for a total cost of $940! according to forums and the site, this is a very common complaint with this year and model. I just bought this last July and I never expected to have to replace parts anytime soon.

- Shueyville, IA, USA

problem #12

Jul 162016


  • 54,640 miles
My 2012 Toyota Tacoma prerunner 2wd has 54,640 miles. I just got a check engine light and "trac off" light yesterday. My truck would accelerate to just 25 mph when merging onto the interstate and top speed was around 50 mph. This is a serious safety issue and Toyota will not cover this known problem under the standard 3 year 36,000 mile warranty. Autozone ran the diagnostic scan and came up with trouble codes P2440 and P2442. These are tied to the secondary air injection system and switching valves. The Toyota dealership said this would cost me close to $2000 to repair. I paid $30,000 for this vehicle brand new just 4 years ago. This needs to become a class action lawsuit so that a safety recall is issued for Toyota to repair this known defect for free.

- Arlington, TN, USA

problem #11

Jun 132016


  • 74,000 miles
Air pump and valves on the emission system failed. Truck went into limp mode with limited acceleration and speed. This is a safety hazard. This is a common problem on 2012 Tacoma. Tundra and sequoia vehicles have had the same exact issue and repairs covered by Toyota. However, Toyota will not cover this same issue on the Tacoma.

- Bedford, VA, USA

problem #10

Jun 212016


  • 65,000 miles
Codes P2440 & P2442 these are for the air injection system on start up. The valves fail and this is a emissions part. Out of warranty and only have 65,000 miles. Tundra had this issue and got a 10 year warranty on the components.

- Santa Fe, TX, USA

problem #9

Jun 202016


  • 56,000 miles
The contact owns a 2012 Toyota Tacoma. After the vehicle was started, the check engine warning light illuminated. The vehicle was taken to a dealer where it was diagnosed that the secondary air injection valve needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 56,000. The VIN was not provided.

- Fallbrook, CA, USA

problem #8

May 092016


  • 34,000 miles
After starting Tacoma, check engine light and "trac off" light came on, went into limp mode, could only go 30mph. Tacoma just hit 34,000 miles. Dealership stated secondary air injection valve stuck closed bank 1 (code P2441). Was told pump and valves needed to be replaced at $2100, including labor. Called Toyota corporate, told it was not covered under power train or emissions warranty. This issue actually first occurred approximately 4 months ago while driving on a city street. Warning light came on and went into limp mode. Pulled into a Firestone and they said it was also code P2441. They reset it and it didn't happen again until a few days ago. This time the code would not reset, warning light won't turn off and remains in limp mode.

- Bellingham, WA, USA

problem #7

Feb 142016


  • miles
Secondary air injection valve failure at 53K miles, Toyota would not cover under my power train or emission warranty. Truck was put into limp mode when the failure happenned and was undrivable.

- Virginia Beach, VA, USA

problem #6

Oct 062015


  • 68,000 miles
The contact owns a 2012 Toyota Tacoma. While driving 55 mph, the vehicle seized and the speed decreased to 20 mph. The vehicle stalled in the middle of the highway. The vehicle was taken to the dealer where it was diagnosed that the air pump needed to be replaced. The vehicle was not repaired. The manufacurer was not notified of th failure. The failure mileage was 68,000. The VIN was not availiable.

- Gibson, GA, USA

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