Electrical System Problems of Toyota Tundra - part 1

The contact owns a 2023 Toyota Tundra. The contact stated that while starting the vehicle, the check engine, auto start/stop, and another unknown warning light illuminated. The message "grill shutter malfunction low voltage" was displayed. The vehicle was taken to the dealer, who determined that the battery sensor, alternator, and ecu had short-circuited. The dealer replaced the battery sensor, alternator, and ecu; however, the failure persisted with the check engine and another unknown warning light illuminated. The vehicle was taken back to the dealer, who determined that the grill shutter needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 57,000.

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Driving on the interstate and the truck surged very hard. The truck began to surge very hard and went into decreased speed mode. We were told by the dealer there is a TSB for the pcm. This decreased power caused the truck to not be able to travel over 25 mph in a 70 mph zone. This caused an unsafe situation.

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Multiple vehicle systems have malfunctioned, including the transmission, infotainment/display screen, and backup camera. Most recently, the backup camera has stopped functioning, preventing a rear view while reversing. The vehicle is available for inspection upon request, along with any service records documenting prior repair attempts. The transmission issues created an unsafe driving condition due to unpredictable shifting and hesitation. In addition, the backup camera is no longer functioning, significantly reducing rear visibility while reversing and increasing the risk of striking a pedestrian, child, vehicle, or object. These defects pose a safety risk to both the driver and others around the vehicle. The vehicle has been presented to an authorized Toyota dealership on multiple occasions for repair of various issues. Most recently, I sought service for the inoperative backup camera but was refused service. Previous concerns have been documented through dealership service visits. The vehicle has been inspected by an authorized Toyota dealership during previous repair attempts. It has not been inspected by police or insurance representatives. The vehicle experienced ongoing drivability and infotainment issues before the backup camera failed. The backup camera eventually stopped functioning entirely.

Toyota has not provided solutions to two of three recalls. This has been nearly a year and no solution.

Vehicle has two open Toyota safety recalls that have remained unresolved for over a year. Nhtsa campaign 25v322 (manufacturer no. 25tb06) covers reverse lamp assembly corrosion. Nhtsa campaign 25v767 (manufacturer no. 25tb14) covers a v35a engine manufacturing defect where leftover machining debris can damage the main bearing, leading to engine knocking, rough running, no-start, or loss of drive power while driving. No engine symptoms have occurred to date. However, the vehicle is used for rideshare and delivery work, meaning passengers and cargo are regularly on board while this known defect remains unremedied. The dealership stated it could not address the engine recall and directed me to Toyota corporate. Toyota corporate opened a case and confirmed no remedy is currently available for this recall. The vehicle has not been inspected by the dealer or manufacturer, as no repair or inspection procedure has yet been provided to perform one. No warning lamps or dashboard messages have been observed. Vehicle is available for inspection upon request. Concern: a known crash-risk engine defect (loss of drive power) has been acknowledged by the manufacturer for over a year with still no completed remedy, while the vehicle continues to be operated commercially with passengers.

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I am 99% sure my vehicle is compromised via a cybersecurity incident. My emergency brake will sometimes slam for no reason, no multi media system updates have occurred for over two years, and the vehicle will randomly beep on its own, unlocking the doors. Another major issue is a recent electric harness failure that the mechanics have no idea how it happened. It cost me over 8,000. Warning lights also turn on for no apparent reason such as parking, sensors, and other traction control. I am extremely concerned with my safety. I also believe the odometer has been altered to register higher mileage.

I have only owned the truck since mid April of 2026. The truck has 12000 miles on it. I have only put 200 miles on the truck. . . 150 miles are driving to the dealership. Engine recall notification was sent out last week of may 2026. Still an open recall for reverse lights with no remedy. Took Tundra into dealer at the beginning of may 2026 to get two other "electronic/infotainment" system recalls repaired. I bought the truck used from a dealership. Had three open recalls (electronic x's 2 and reverse light). Got two of three fixed. A few weeks later I get the engine recall. Really Toyota. . . I took the truck to maplewood Toyota on 5/28/26. There it sits waiting for repairs. I asked about getting out of the truck and my option was trade it in at kbb value ($45k-ish) I paid $57k and $3k for extended warranty for a total of $60k. I am not going to eat $15k on trading in the truck. Toyota should stop selling vehicles with these engines now! these engines should not be on the road or being sold - period. Toyota still using the "debris" in engine from manufacturing in 2024 is criminal. We are talking about the debris issue in 2022, 2023, 2024 engines. . . . This is outright criminal. Shame on you Toyota. I am a Toyota buyer. I own a 2019 corolla. My friends and family are also Toyota owners. This v35a engine is a complete failure and production should be stopped. I kick myself for not doing more research before buying the truck. I never would have purchased knowing the ongoing engine issues. Dumb me - I am buying a Toyota because I trust there is no reason to worry - boy was I wrong. Please hold Toyota accountable for this. Toyota should buy back every vehicle that has this engine if the owners want that option. Anyone with a 2022 - 2026 v35a engine - drive at your own and everyone else on the road - risk.

While driving the vehicle on a public roadway at approximately 70mph, the vehicle suffered a sudden and catastrophic powertrain failure without timely warning. The check engine light illuminated, the physical engine oil pressure gauge dropped to absolute zero, and the dashboard immediately flashed a critical "hybrid system malfunction" warning. > this mechanical and electrical failure triggered an instantaneous, total loss of motor power while traveling live lane with traffic behind me. The vehicle immediately stalled and became a completely inoperable, unresponsive rolling hazard. The vehicle failed to restart and left me stranded on a narrow shoulder which was very hazardous as traffic coming at high speeds could have easily rear ended me. The vehicle required a flatbed tow to an authorized Toyota dealership, and after submitting a case with corporate hoping for a trade assist(as my wife no longer feels safe in this chassis), I have been told it will take up to 45 days to process this request. I made a significant investment in this vehicle in January of 2023 and have since methodically kept up with maintenance, with hopes this vehicle would last me 10+ years. I find it highly inexcusable for Toyota to not consider speedily helping a loyal customer in this situation and making it right in a timely manner. I am now being offered a vehicle the same as mine of the current year and with me having to put over 22k in equity to close the gap. I should not be left on the hook for something that put my safety at risk and now has left me without the ability to travel as my family has lost their main method of transportation. Manufacturing defects should not come at the customers expense.

My 2025 Toyota Tundra’s air conditioning is not cooling properly. The a/c does not perform as expected, especially in hot weather. I am concerned this may be a defect in the hvac/climate control system. I am also concerned about driver safety because poor a/c performance in extreme heat can affect the driver and passengers, and hvac issues may also affect proper window defogging/defrosting. I am requesting that NHTSA review this issue and track similar complaints for possible investigation. Not blowing cold wind, temperature changes and blows less air as temperature changes from hot to cold or cold to hot. At one point drove around 5 miles away from home before cool air started to blow.

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In the 2024 Tundra if there is a camera misalignment for the 360 degree cameras or reverse cameras. It sets off a code that makes the trailer brake say disconnected even when connected. I took the vehicle in and had the cameras recalibrated then the brake worked. On my last trip pulling a 4,000 lb trailer the cameras came out of alignment so my trailer brake stoped working mid trip. This is a safety issue that can cause a accident.

Multiple times in my almost 3 year ownership I have experienced a “dead pedal” while pulling out into traffic from a stop. It has almost caused a t bone accident on a few occasions. It’s been to the dealer and had a software update TSB 0111-22. After the update I didn’t have the issue for a little while, but it has come back and it now happens almost every time I drive it. Online search shows that there are multiple people having this problem. Toyota needs to come up with a fix for this before it causes a bad accident.

The door actuator mechanism (driver's door) periodically does not work or makes a ratcheting sound like a machine gun when placing the vehicle in drive or in park.

The 2023 Toyota Tundra hybrid’s powertrain design may be insufficient to maintain basic safety maneuvers (specifically "limp mode" or emergency clearing) during an engine failure while operating under high-load conditions in mountainous terrain. This creates a life-threatening hazard for the occupants and other motorists. ?statement of fact: as an owner of a 2023 Toyota Tundra hybrid, I primarily utilize this vehicle to tow a 9,000 lbs travel trailer through the high-altitude, steep-grade regions of utah. These routes frequently consist of narrow, two-lane mountain passes with no shoulders and steep drop-offs. ? ?failure under stress: engineering logic suggests that engine stress is highest during heavy towing on steep grades. If a primary engine failure occurs in these conditions, the hybrid system’s battery and electric motor capacity are, in my experience, inadequate to move a combined gross combined vehicle weight (gcvw) of approximately 15,000+ lbs to a safe location. ?while the hybrid system may allow a light, unladen vehicle to limp to a shoulder under "ideal conditions," it lacks the torque and sustained power to move a heavy trailer on a grade once the internal combustion engine is compromised. ?in the event of a failure, the vehicle would likely become "dead in the water" in the middle of a live, narrow lane on a blind mountain curve. Without the ability to reach a turnout or even a marginal shoulder due to the weight of the load, the vehicle becomes a stationary target for other high-speed mountain traffic, posing a severe risk of rear-end collisions and multi-car accidents. ? I am requesting that the NHTSA investigate the performance of the Tundra hybrid’s "fail-safe" modes specifically under maximum towing capacity on grades.

On 2022 - 2024 Toyota Tundra models, the vehicles are experiencing an issue where the fuel sensor will reset the digital and analog fuel displays back to showing a full tank without adding fuel to the tank. On my vehicle, the reset has been occurring around the 380 mile distance to empty level. I see numerous other reports about individuals experiencing the same issue. I believe this is a defect and could cause a vehicle to run out of gas without the driver expecting it.

My 2024 Toyota Tundra platinum (VIN [xxx] ) had multiple times where I had delayed throttle response which created close call of accident while turning. I researched my VIN and it is subject to safety recall 25ta14 for v35a engine stall due to manufacturing machining debris causing main bearing failure. Toyota has issued this recall but no repair remedy is currently available. The authorized dealer (ed martin Toyota, indianapolis, indiana) has confirmed they do not have authority to perform the repair and cannot provide a remedy timeline. I have surrendered the vehicle because I do not feel safe operating it. I am without transportation indefinitely. This vehicle has also been subject to four additional safety recalls: 26ta02, 25ta10, 25ta06, and 24ta02. I previously filed a formal buyback claim with Toyota motor north America (claim no. Xxx) in November 2024 which was denied. Toyota has since issued three additional recalls on this same vehicle. I am requesting federal intervention and investigation into Toyota’s failure to provide a timely remedy for this safety recall. ” information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The contact owns a 2019 Toyota Tundra. The contact stated that while parked for 5-10 minutes, the contact noticed a burning plastic odor, and upon looking up moments later, the contact noticed flames coming from the driver's side headlight, and the flames were 6 inches above the headlight. The contact started extinguishing the fire with water bottles. The contact drove to a water hose, which the contact also used to extinguish the fire. The contact sustained minor smoke inhalation. No police report was filed. The contact was able to drive to the nearby residence. The contact related the failure to NHTSA campaign number: 21v688000(exterior lighting, electrical system), which included the VIN. The manufacturer was notified of the failure and sent a field inspector, who inspected the vehicle and informed the contact that the inspection report would be completed on the same day; however, the manufacturer would follow up with the contact within 45-60 days. The contact followed up with the manufacturer three days later and was provided with the same information. The dealer was not contacted. The vehicle was not diagnosed or repaired. The failure mileage was approximately 100,500.

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I am reporting a severe thermal and electrical safety hazard regarding the oem wireless charging pad in a 2025 Toyota Tundra. During standard vehicle operation, the integrated charging pad overheats to extreme temperatures. On a recent drive, the heat generated by the vehicle's charging pad was so intense that it physically melted, blistered, and deformed a magsafe-compatible protective case on a samsung galaxy s25 ultra. This safety issue has been brought to an authorized dealership, Toyota of hollywood (repair order #[xxx]), for a second consecutive time. The dealership officially documented the property damage in writing on the invoice, stating: 'phone got melted from how hot it gets. ' however, they refused to perform repairs or disable the system, explicitly noting: 'vehicle was compared to another and both doing the same. ' by admitting that multiple new vehicles exhibit this exact overheating behavior, the manufacturer is confirming a systemic and unaddressed design or manufacturing defect. An in-dash electrical component capable of melting plastic poses an immediate cabin fire hazard, risks triggering thermal runaway in the mobile device's lithium-ion battery, and directly threatens occupant safety. Toyota corporate has opened case #[xxx], but no remedy or safety recall has been provided. " information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

I received recall (Nov 2025) for engine replacement due to safety failure of the engine and Toyota still does not have replacement. Also received recall for reverse lights that are still not avaialble (Feb 2025).

The vehicle while parked and not running on our driveway burst into flames and had large fire and explosions that burned the vehicle front half completely. The whole engine compartment burned and melted and destroyed the vehicle. No warning lights, no issues. Just burst into flames and destroyed the vehicle.

While operating my 2023 Toyota Tundra trd pro under normal conditions, I started the vehicle and activated standard factory equipment including the seat heaters and window/mirror defrosters. Shortly thereafter, I noticed a slight acrid odor inside the vehicle, which quickly became more pronounced. I drove approximately 200 feet, and immediately returned to my driveway. Upon shutting the vehicle down, I observed smoke coming from the engine compartment. I opened the hood and confirmed smoke and signs of an electrical fire originating in the engine bay. I used a fire extinguisher to extinguish the fire and then disconnected the vehicle’s battery. No injuries occurred. The vehicle was not restarted and was subsequently towed to an authorized Toyota dealership for inspection. Visible damage is present in the engine compartment, including the main fuse/relay box and associated electrical components. The incident occurred without collision and during normal vehicle operation.

When starting up my truck in the morning there is rough idle that cause truck to sputter and sound horrible. It eventually smooths out but I believe the computer needs flashing. When I look online some have a recall for the engine 3ur-fbe / 2018 Toyota Tundra, but when I put in my VIN # it shows no recall and throws off check engine light code. Also my radar sensor that it on for cruise control is showing up on dash please contact dealer and flashing. They have replaced this before with recall and now it’s acting up again. Also traction control is lighting up I. The dash as well blinking along with all these codes.

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Unknown. The truck often lags when the accelerator is pressed. Coming from a stop seems to make it worse. It takes 1-2 seconds more than you would expect as normal for the truck to start to move. This gives you enough time to think something is wrong and cover the brake to prevent you from entering an intersection if there is a problem. The result is that you end up halfway into an intersection slower than you expected, possibly causing an accident. It seems like a combination of electronic throttle control lag, and the 10 speed transmission never knowing what gear to select causes the issue.

The contact owns a 2024 Toyota Tundra. The contact stated that on two occasions while driving at undisclosed speeds, the vehicle lost motive power while attempting to accelerate from a complete stop. Upon depressing the accelerator pedal, the vehicle abruptly stopped in the middle of an intersection, with the brake warning light illuminated. The vehicle resumed normal operation after several seconds. The vehicle has not yet been diagnosed or repaired. Neither the dealer nor the manufacturer was notified of the failure. The failure mileage was approximately 12,000.

While driving today the engine check light turned on, and the engine turned off (stalled) while in the middle of the road with a good amount of traffic around me. I pulled off to the side of the road and gave the engine a minute. I turned the truck back on again, the engine sounded very rough turning on and rough while driving. After a minute or two of driving, the engine light turned on again, and the engine stopped (stalled) again while in the middle of the road. I stopped this time for two minutes or so and turned the engine on again. I then proceeded to try to make it home, which I accomplished, but the truck's engine sounded rough and with a chattering sound (engine knocking) even when idling. I have received a recall notice letter concerning " certain 2022-2024 model year Tundra vehicles engine may stall during driving. " I possess the letter with the NHTSA recall number and the Toyota recall number. In the letter, it mentions the condition for which it is being recalled. The conditions are as stated in the letter. "machining debris may not have been cleared from the engine when it was produced. In the involved vehicles, this can lead to engine knocking, engine rough running, engine no start, and/or a loss of drive power. A loss of drive power while driving can increase the risk of a crash. " my truck has experienced all of the disfunctions that are stated in the recall letter. I would like for Toyota to look into this and remedy this problem before it ends in a major fatal crash or any other unfortunate circumstance. Thank you!.

This is ridiculous if there’s debris in the engine of a risk for it and risk for the engine to go I want a new vehicle there’s 18k miles on this truck brand new shape and I will be putting my family in this. This is a risk I’m not willing to take. This needs to be bought back.

While driving down the highway at ~70 mph, the truck's powertrain suddenly shut off. The electronics still worked, but the rpms dropped to zero. I was forced to pull off to the side of the road, where I tried to turn off and turn back on. The truck kept on turning off and on by itself electronically, but the engine and transmission wouldn't engage for roughly 10 minutes. I was eventually able to start the truck and limp home, but the engine was knocking afterward. Completely shutting down while driving down the highway at cruising speeds is insanely unsafe.

When the radio is turned completely off to reset the bluetooth the entire dashboard lights turn on and a malfunction warning is displayed that xyz system is not working to call dealer to schedule appointment. There is an issue with the windows not rolling up either.

Throttle lagging, truck won’t accelerate at low speeds and is very jerky.

Car stalls from stop during acceleration. There are times when there is no response from throttle.

I bought the vehicle new in November 2025. 2026 Toyota tubdra trd sr5. In the first week I noticed a lot of jerking and shaking. I brought it to the dealer and was told it was a break in period and it should go away. I’ve had the truck in the shop 5-6 times since and the jerking and shaking hasn’t gone away. I’m at 6300 miles now. The dealer won’t even respond to me anymore. The only way to make the jerking go away is to step on the gas pedal harder but this has become extremely dangerous because it’s forcing me to go faster than I would like, especially in school zones. The dealers say that it’s the truck running very low rpm’s to maximize fuel efficiency and also because there are 10 gears but is that’s the case than why isn’t everyone experiencing it. It’s worse on cold mornings (40 or below) but it’s almost like the truck needs an hour or two to warm up. Even then it’s still jerking. My guess is that the truck doesn’t know what gear it’s supposed to be in but 4th or 5th gear are the worst where the truck hesitates and jerks. I’ve been told to run it in sport mode but that doesn’t help. I’m finding more and more complaints about this online with the Toyota Tundra sr5’s and I’m part of numerous groups. Someone needs to step in because no one should have to go through this and it’s very unsafe to have to push the gas pedal down harder to make the jerking go away. Thank you for your time.

Throttle lag/hesitstaion , from a dead stop at stop sign I attempted to accelerate , my truck went a few inches forward and no pedal response after a 3 second delay my vehicle started accelerating again.

Throttle delay/ hesitation that is very unpredictable.

There’s a delay in throttle response. Especially when making a turn across traffic. Throttle would not respond for at least 1 to 2 seconds. Even at full throttle the truck did not respond while cars were coming towards me. This has happened to several Tundra owners. Check facebook Tundra group and you’ll find others with same issue.

I’m writing to report a driver’s-door lock malfunction on my 2022 Toyota Tundra and to request goodwill assistance (reimbursement or no-charge repair). VIN: [xxx] mileage: 38,575 miles concern: the driver’s door does not lock/unlock using the key fob or interior switch. Manual locking still works. Other doors operate normally. Safety/security impact: the vehicle cannot be reliably secured and the condition may leave the vehicle vulnerable when parked. Troubleshooting performed: verified other doors work; checked fuses; inspected door-to-body wiring boot; issue appears isolated to the driver-side door lock actuator/latch. Requested resolution: goodwill coverage for diagnosis and repair (or reimbursement if I proceed with repair now), including parts and labor for the driver-door lock actuator/latch assembly. I’ve been satisfied with the vehicle and would appreciate Toyota’s help resolving this known-type issue just beyond the 3-year/36,000-mile basic warranty. Please open a case and advise next steps. I can provide service records, videos, and a dealer estimate upon request. Thank you for your assistance. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

2023 Toyota Tundra experienced repeated engine stalling and vehicle lock-up while driving on public roads, including in an intersection. During one incident, the driver was thrown forward into the steering wheel. A Toyota dealer attempted repair by replacing the neutral/park safety switch, but the repair failed and the dangerous condition persisted immediately after. The vehicle has been removed from use due to safety concerns. The issue is consistent with known engine stalling concerns affecting certain 2022–2024 Toyota Tundra vehicles. The vehicle is unsafe to operate.