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EnginePart report

2012 Toyota Tacoma Engine Problems

Complaints
122about this part
Share
41%of 295 total for the year
Median mileage
60,100miles
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

NHTSA recorded 122 complaints about the engine of the 2012 Toyota Tacoma, 41% of the 295 complaints for this model year. Where a mileage was given, the median is 60,100 miles. 1 of these say a crash was involved, according to the filers.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“The check engine light and the trac off light came on as I was merging onto the interstate. I immediately stopped the vehicle, pulled over, and took my 2012 Toyota Tacoma with 78,000 miles to the mechanic where I left it overnight for them to look at it in the morning. Running a diagnostic they found code p2443 - secondary air injection switching valve stuck. …”

NHTSA complaint #11060748, filed 2018-01, 78,000 miles

“I brought truck to Toyota dealership as part of rusted frame recall to be verified. They stated truck was not rusted enough underneath for Toyota to approve recall. That was a couple of months ago. I have recently brought it to a few mechanics to do some work on A/C as the A/C stopped working and that refuse to work on it as the truck is so rusted underneath!! They said it would crumble. Not even worth it.”

NHTSA complaint #11350058, filed 2020-08, 137,000 miles

“While driving and turning onto a highway, check engine and trac off warning lights came on as I pulled into traffic. Truck went into limp mode so I couldn't accelerate. Oncoming traffic worked around me as I turned on my hazard lights. Secondary air injection system p2440 and p2442 are the error codes associated with the valves stuck open.”

NHTSA complaint #10967107, filed 2017-03, 100,000 miles

“While commuting to work the engine light and traction control light came on, causing my truck to slow down, very slow. It would not let me accelerate and disabled my progress to around 2000 rpms. This could have been a very serious or a dangerous situation especially if I was towing a load or in a major traffic situation. Codes - 2440 and 2442 were the causes of this scary account.”

NHTSA complaint #11021153, filed 2017-09, 105,000 miles

“Went on vacation to texas, stopped to gas up and when I went back on interstate I had a dramatic loss of power. Could not keep up enough speed to go speed limit. Air conditioner did not work. At destination a local told me about a repair shop. Cost me a hundred dollars to reset to factory specs. This has happened again four other times. I disconnected battery and reset myself. Now it`s a daily thing.”

NHTSA complaint #11121780, filed 2018-08, 65,000 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2026323%
202533%
202464%
2023815%
2022712%
20211215%
20201416%
20192913%
20182612%
20173615%
20164715%
20151212%
201466%
201376%
201212241%
201132%
201062%
200982%
200882%
200781%
2006182%
2005183%
2004113%
200351%
200231%
200121%
200010%
199910%
199810%
199711%
199511%

Other parts of the 2012 Toyota Tacoma

Fuel system
53 complaints
Other or unknown
45 complaints
Transmission and drivetrain
35 complaints
Brakes
22 complaints
Vehicle speed control
22 complaints
Suspension
21 complaints
Electrical system
19 complaints
Electronic stability control
17 complaints
Steering
12 complaints
Air bags
9 complaints
Body and structure
9 complaints
Wheels
7 complaints

← All problems reported for the 2012 Toyota Tacoma

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology