2012 Toyota Tacoma Transmission & Power Train Problems
NHTSA component category: POWER TRAIN · data through 07/14/2026
Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
How power train ranks on this vehicle
Share of the 294 complaints citing each category; one complaint can cite several. Full breakdown on the 2012 Toyota Tacoma overview page.
What owners report
“2012 TACOMA WITH 37,00 MILES: WHILE LEAVING A PARKING LOT AND TRYING TO ACCELERATE ON TO A BUSY HIGHWAY, (60MPH SPEEDS), TRUCK WOULD NOT ACCELERATE…”NHTSA complaint 10937233 — filed 12/23/2016
“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…”NHTSA complaint 10928483 — filed 11/29/2016
“WE JUST PAID TOYOTA A LITTLE OVER $2,000 TO REPLACE THE SECONDARY AIR INJECTION SYSTEM. THE SWITCHING VALVE WAS STUCK CLOSED ACCORDING TO TOYOTA. THIS…”NHTSA complaint 10927320 — filed 11/21/2016
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Power Train complaints by year filed
Frequently asked questions
Does the 2012 Toyota Tacoma have transmission & power train problems?
Power Train is the #4 most-reported problem area on the 2012 Toyota Tacoma: 34 of 294 complaints on file (11.6%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2012 Toyota Tacoma have in total?
294 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 16 involved a crash, 0 involved a fire, 6 reported injuries, and none reported deaths.
What does NHTSA's power train category include?
NHTSA groups complaints about the transmission (automatic or manual), driveline, axles, transfer case and related parts under a single component category called POWER TRAIN. This page reports that category as NHTSA defines it.
