2020 Toyota Tundra Complaints

POWER TRAIN,ELECTRICAL SYSTEM,ENGINE — Filed 09/22/2026

When driving on the freeway at 70mph speeds during rush hour, I lost all power to the vehicle causing me to have to immediately pull to the side of the freeway with minimal control of the vehicle. I had to come to a complete stop on the freeway putting myself and others at high risk for a high speed crash. There were no warning lamps just a full system failure. There are recalls on certain VIN numbers for the Denso Low Pressure Fuel Pump and a class action lawsuit settlement that resulted in Customer Support Program 23TE05 but when I called Toyota they said my VIN did not qualify.

FORWARD COLLISION AVOIDANCE — Filed 06/19/2026

Between the hours of 11:00 a.m. and 1:00 p.m. while heading west with cruise control on and I passed a truck that was fully in the left turn lane my vehicle has done a collision avoidance complete stop three time in the same day. I wasn’t tailgating and I was doing the speed limit of 55 mph. The road was very straight. It did this twice before about a year ago. I reported it to the dealer and they could find nothing wrong with my vehicle.

STEERING — Filed 04/16/2026

Steering is intermittently difficult, almost as if no power steering. Steering wheel does not return to center after a turn. There were no warning lamps or messages displayed on the vehicle. This is a safety issue in that it could an accident by not responding properly to driver input. Took vehicle to Toyota dealer who diagnosed problem as "Intermediate Steering Shaft Binding." Toyota dealer replaced steering intermediate shaft. Dealer kept old steering shaft.

UNKNOWN OR OTHER — Filed 03/09/2026

In a 2020 Toyota Tundra, 1794 Edition (60k miles), traveling at normal highway speed, the moonroof glass panel spontaneously exploded. There was no previous damage or modification to the moonroof panel. Panel explosion was extremely loud and surprising. Large pieces of glass were blown back onto the highway. If the shade was not drawn at this time, large amounts of glass would have also rained down onto the driver and passenger of the vehicle. Clear dash camera footage shows speed under the speed limit, and no impact from any sort of debris.

SEATS — Filed 01/06/2026

The contact owns a 2020 Toyota Tundra. The contact stated that while the vehicle was parked, the contact discovered that there was smoke inside the vehicle. The contact opened the front passenger side door and discovered that the front passenger seat was burned and had melted. The contact stated that the front passenger seat had caught on fire and extinguished itself prior to the contact discovering the smoke. The origin of the fire was from the front passenger’s heated seat function. No warning lights were illuminated. The vehicle was unoccupied during the fire. Neither a Fire nor a Police Report was filed. The vehicle remained at the residence. The dealer was contacted, and the contact was informed that the front passenger’s seat heater needed to be replaced. The vehicle was not repaired. The contact also mentioned that the insurance company declined coverage since they deemed it to be a manufacturer's defect. The manufacturer was notified of the failure. The failure mileage was unknown.

STRUCTURE — Filed 10/01/2025

IN BACK CEILING LEAKING WORSE NOW...

VISIBILITY — Filed 09/15/2025

The contact owns a 2020 Toyota Tundra. The contact stated that while opening the sunroof, the sunroof made an abnormal chainsaw sound. The message "Window Open" was displayed. The contact stated that the sunroof was opening and closing independently. The vehicle was taken to the local dealer, where it was diagnosed, and determined that the cables had seized, and the sunroof glass was stressed. The dealer linked the failure to Technical Service Bulletin: 004220. The contact stated that the window failed to close. The vehicle was not repaired. The manufacturer was contacted and confirmed that there was no warranty coverage or Goodwill assistance for the repair. The manufacturer referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 46,000. The VIN was not available.

STRUCTURE — Filed 06/01/2025

BODY TOP CELING IS LEAKING.. TOYOTA TRY TO COST ME OVER ONE THOUSAND I CANT AFFORD.. I SEE LOT OF COMMON RECALL FROM OLD TUNDRA HAVE SAME PROBLEM. I THINK TOYOTA IS RESPONBILE TO FIX...

UNKNOWN OR OTHER — Filed 05/23/2025

It happend today .. I notice while I Cleaned .....back seat ceiling leaking . it seem come from third brake light it no recall on list..

FORWARD COLLISION AVOIDANCE — Filed 04/27/2025

The contact owns a 2020 Toyota Tundra. The contact stated that on several occasions while driving at various speeds, the "Pre-Collision System Failure” warning light and icon were illuminated. Additionally, the message "See Dealer" was displayed. The contact also stated that the rear passenger’s side wheel locked up intermittently. The check engine warning light was illuminated. The vehicle was taken to the residence where the contact disconnected the battery, cleaned the cameras, and allowed the ECU to reset; however, the failure persisted. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 2,550.

UNKNOWN OR OTHER — Filed 12/28/2024

Spontaneous explosion of sunroof, under normal driving status, pictures were taken, the toyota deealer has replaced and repaired at my cost, I have filed an insurance claim with USAA and uploaded bill and pictures, The shattered glass could have entered the cab but did not. No warning lights or other symptoms appeared before the incident.

STRUCTURE — Filed 09/14/2024

The sunroof shattered while driving down the freeway. No vehicles near or overpasses near. The shade was closed so the glass fell on it not on my head or passengers that could have been present. Sounded like a loud pop. Then I heard wind noise. The glass is blown upward, not downward. I am 40 year auto technician and own my own shop. Its my personal truck I bought new. Has never had any issues at all. This is a defect of some sort. My thought is, since I never use it. The seals aroung the glass bound in the roof opening, thus binding it where it finally flexed and shattered.

FUEL SYSTEM, GASOLINE — Filed 03/03/2024

The contact owns a 2020 Toyota Tundra. The contact stated while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to pull to the shoulder of the roadway, where the vehicle failed to restart. The check engine and traction control warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 20V682000 (Fuel System, Gasoline) however, the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was 34,000.

UNKNOWN OR OTHER — Filed 01/13/2024

Driving on the highway and the sunroof spontaneously exploded — portions of glass traveling up and out of the vehicle, with some falling into the sunshade. Skies were clear with temperatures around 25 degrees Fahrenheit. There were no overpasses or other structure from which debris could have fallen, nor could it have come from another vehicle.

SERVICE BRAKES — Filed 12/06/2023

I was driving in a 25 MPH zone approaching a red light preparing to stop. I had increased the pressure on my brake pedal and then my foot slipped of the pedal just seconds before I ran into a truck that was stopped at the red light. After further investigation I found out that the brake pedal pad has been substituted by Toyota Manufacturing. My 2020 Tundra was purchased new and has 8,800 miles on it. The petal pad is made from a PVC plastic material as stated on the bottom of the pad. There are no part #s on the pad which is suspicious that this is not a Toyota pad. The PVC material is very slippery, especially if the surface was wet. Come to find out that my 2023 RX 350 has the same brake pad. Both of these pedal pads will be replaced immediately from Toyota. Please Note. I could not upload any of the documents that you had requested. Something is corrupted with the web page that asks for upload files??????

FUEL/PROPULSION SYSTEM — Filed 04/19/2023

Can not fuel truck normally. Gas stops pumping after 2secs and have confirmed the issues with multiple gas stations.

ELECTRICAL SYSTEM,UNKNOWN OR OTHER — Filed 02/25/2023

NOTE: Toyota has confirmed this issue, but is unable to resolve this. When the SOS button is pressed, the DCM module is supposed to send the proper VIN number and location to the call center. The call center does not receive the proper VIN number and pulls up the wrong person / location. In my case, if an emergency occurred, they would send emergency assistance to a vehicle located in another state entirely. This is not because the wrong owner is assigned to their system. They can find my vehicle VIN with the proper owner information in their system. The issue is that the DCM module (or other system) is actually sending the wrong VIN to their system. The Toyota SOS call center says to see the dealer and the dealer says they are unable to fix this. If this is not isolated to just my vehicle, this could cause a loss of life if emergency assistance never arrives at the proper vehicle location.

SEATS — Filed 02/09/2023

The headrests on the seats slip out of place very easily. It is available for inspection on request. In case of accident, the headrests may fly off the seat very easily, with failure to prevent whiplash injury. The problem has not been confirmed by a dealer or service center. The vehicle has not been inspected by anyone but me, the owner. There are no warning lamps, messages, or other symptoms of the problem. The problem was there when I bought the vehicle in 2022.

AIR BAGS,FORWARD COLLISION AVOIDANCE — Filed 12/02/2022

was struck in front right corner of truck and air bags did not deploy or the automatic braking system did not respond causing me to be thrown in to rearview mirror and breaking the windshiled and causing body harm to my head and spine

FORWARD COLLISION AVOIDANCE — Filed 08/20/2022

This has happened twice now. 1st occurs on the DC beltway in VA HOV lanes, outer loop just past Tysons Corner while going 70+ MPH in the lane with no vehicles around the collision warning system and break automatically alerted , sensor indicated and dash board flashed BREAK. It resolved on its own. This was in august on a hot sunny day, no rain, no fog. The second occurrence just happened two weeks ago. It was sunny, 55-65 degrees, 35-49 PMH approx 3 vehicles back while turning south from rote 27 in mount airy maryland onto Penn shop road, the vehicle did the same thing. Indicated I was going to crash, applied the breaks automatically and almost caused an accident with a vehicle traveling behind me. First time I thought was a fluke- second time- no. Will be sending to dealer. Vehicle has less than 25k. 2020, Calvary blue, 4x4, shortened, crew max.

TIRES,WHEELS — Filed 08/26/2022

The contact owns a 2020 Toyota Tundra. The contact stated while driving approximately 65 MPH, the TPMS warning light illuminated. The contact had taken the vehicle to a local dealer where it was diagnosed and determined that the tire pressure sensors had been mismatched on the vehicle due to the wheels being replaced. The contact had been advised that the dealer would not replace the sensors with the correct parts. The vehicle had not been repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 14,900. The consumer stated Bell Ford Toyota agreed to refund $750 and replace and reset all four tire sensors.

ENGINE — Filed 07/01/2020

Air conditioning compressor partially seizes if air conditioning is turned on while driving and when air conditioning knob is on at time engine is started. Makes very loud noise. When driving, and it occurs, truck will slow suddenly as if the brakes were applied until compressor engages. Dealer mechanic says it sounds like the compressor clutch engaging. Said nothing wrong. Have left truck with dealer several times and they say they cannot replicate the issue. I’ve recorded the sound several times and have played that to them. They hear it but say that they have to prove that is what is happening. They refuse to replace the compressor. Vehicle is not safe to drive when this happens. This has occurred since truck was purchased brand new.

VISIBILITY/WIPER — Filed 08/05/2022

Sun roof glass shattered

UNKNOWN OR OTHER — Filed 04/29/2020

MY SON WAS DRIVING MY 2020 TOYOTA TUNDRA AND HE WAS TRAVELING APPROXIMATELY 30 MPH AND WAS NOT PAYING ATTENTION AND FOR SOME REASON THE PRE COLLISION SYSTEM DID NOT ENGAGE AND STOP OR EVEN SLOW THE TRUCK DOWN HE SLAMMED INTO ANOTHER TRUCK AND THAT TRUCK WAS PUSHED INTO ANOTHER CAR LUCKILY NO ONE WAS HURT.

AIR BAGS — Filed 02/11/2020

A DUMP TRUCK CAME OFF OF THE HIGHWAY AND MADE AN ILLEGAL TURN IN FRONT OF ME. HE CAUSED A FRONTAL IMPACT ON MY VEHICLE AND THE AIR BAGS DID NOT DEPLOY. I WAS TRAVELING 55 MPH WITH A TRAILER ATTACHED AND SLAMMED ON BRAKES BUT STILL IMPACTED HIM REALLY HARD. I WAS ON THE FEEDER OR FRONTAGE ROAD.