2012 Toyota Tundra Transmission & Power Train Problems
NHTSA component category: POWER TRAIN · data through 07/12/2026
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 154 complaints citing each category; one complaint can cite several. Full breakdown on the 2012 Toyota Tundra overview page.
What owners report
“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…”NHTSA complaint 11350696 — filed 08/21/2020
“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…”NHTSA complaint 11329621 — filed 06/18/2020
“WAS DRIVING ON HIGHWAY WHEN DASH LIGHTS LIT UP WHILE TRYING TO GET TO EXIT TRUCK WENT IN LIMP MODE LOST POWER COULD ONLY MANAGE…”NHTSA complaint 11317357 — filed 03/10/2020
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 Tundra have transmission & power train problems?
Power Train is the #3 most-reported problem area on the 2012 Toyota Tundra: 20 of 154 complaints on file (13%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2012 Toyota Tundra have in total?
154 complaints were on file with NHTSA as of 07/12/2026. Across all categories, 7 involved a crash, 2 involved a fire, 5 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.
