There are 2 stored owner reports matching the powertrain & transmission leading-label group for the 2020 Toyota Tundra in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)I BOUGHT A NEW 2020 TOYOTA TUNDRA 4X4 CREWMAX AND IT IS NOT PERFORM TO WHAT A V-8 POWERTRAIN OF 5.7 LT, AND 381 HORSE POWER SHOULD BE. THE ACCELERATOR ON THIS 2020 TUNDRA IS NOT FUNCTIONING PROPERLY. IT WILL NOT ACCELERATE WHEN I STEP ON THE GAS PEDAL, WHICH ALMOST STALL BEFORE IT MOVES. IN ADDICTION, I OWNED A 2007 TUNDRA 4X4 CREWMAX AND THERE WAS NOT A SINGLE ACCELERATION PROBLEM. THE VIN# FOR MY NEW 2020 TUNDRA CREWMAX IS: [XXX]. I BELIEVE TOYOTA HAS INSTALLED THE ACCELERATOR INCORRECTLY OR THEIR FUEL PUMP IS NOT WORKING PROPERLY ON THIS NEW 2020 TUNDRA MODELS. REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *CC
TL* THE CONTACT OWNS A 2020 TOYOTA TUNDRA. THE CONTACT STATED WHILE DRIVING AT 10 MPH, THE FOUR-WHEEL DRIVE WOULD NOT ENGAGE. THE CONTACT STATED WHEN TRYING TO ENGAGE THE FOUR-WHEEL DRIVE, THE VEHICLE WOULD MAKE A LOUD NOISE AND NOT ALLOW THE VEHICLE TO TURN. THE CONTACT STATED NO WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS NOT TAKEN TO A LOCAL DEALER OR INDEPENDENT MECHANIC FOR DIAGNOSIS OR REPAIRS. THE MANUFACTURER HAD NOT BEEN INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 3,000.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 29, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.