2004 Toyota Tundra Problems

What owners report

Owners of this model year most often write about rust and corrosion of the frame and underbody, usually noticed at state inspection or during unrelated repairs rather than as a sudden breakdown. A second cluster of complaints concerns front suspension and steering parts, particularly lower ball joints, along with a smaller but recurring group about brakes and delayed airbag recall work. Most of the sampled complaints were filed between roughly 75,000 and 200,000 miles.

1. 1
   Body and structure

   Frame and underbody rust-through (corrosion)

   • 254 complaints (55%)
   • median 115,000 mi at 11.7 yrs old (170 state mileage)
   • 2 mention a crash, fire or injury
   • owner-quoted repair $4,000 (median of 11 quotes)
   • filed 2006–2026

   Complaints describe frame rails, subframes and crossmembers rusting through, often found during a state inspection, an oil change or a tire replacement. Several owners say a dealer inspected the frame and applied an underbody coating under a limited service campaign, and that holes later appeared anyway. Owners also report related corrosion on sway bar mounts, bumper brackets, spare tire carriers and fuel tank straps, and say dealers or the manufacturer often declined further assistance once the campaign period ended. Reported from about 49,000 to over 250,000 miles, with many in the 60,000 to 185,000 mile range, frequently on vehicles used in winter-salt or coastal areas.

   What to check: Inspect the frame rails, crossmembers and subframe mounting points on a lift, especially above the front and rear axles and around sway bar brackets; probe for soft metal or flaking. Ask for any paperwork showing whether a corrosion campaign inspection or coating was performed, and when.

   2 excerpts from owner complaints in NHTSA records

   “The frame is rusted to the extreme that previous owners have already had it repaired on the drivers side just behind the front axle for the sway bar to mount. I have found the same issue of rust through the frame is now on the passenger side and bout to do the same thing. I also find extreme rust just in front of the rear axle. Extreme rust holding the transfer case in the vehicle is very thin also.”

   NHTSA complaint #11377020, filed 2020-11, 209,000 miles

   “I had recently purchased a 2004 Tundra with knowing about the recall for frame rust. I believed Toyota had completed the recall and fixed the problem. Not long after owning the vehicle, I noticed a spot of rust bubbling through the anti corrosion coating. After further inspection, the frame is completely corroded through and cracked. This vehicle was meant to use for travel with my family in it and now it's not safe to drive at all.”

   NHTSA complaint #11267619, filed 2019-10, 154,000 miles
2. 2
   Suspension

   Front lower ball joint separation or looseness

   • 112 complaints (24%)
   • median 91,232 mi at 6.0 yrs old (84 state mileage)
   • 11 mention a crash, fire or injury
   • owner-quoted repair $2,800 (median of 8 quotes)
   • filed 2004–2026

   Owners describe front-end clunks, shaking or vibration, and in some cases the wheel dropping or separating while driving at highway speed. Several complaints mention that the vehicle was covered by a lower ball joint recall but that parts were unavailable, so the repair was delayed or the owner was told to pay for it. Dealers typically diagnosed a worn or separated lower ball joint and replaced it, sometimes along with the control arm. Most reports fall between about 40,000 and 140,000 miles, with several in the 50,000 to 80,000 mile range.

   Recall 07V013000Recall 05V225000

   What to check: Ask whether the front lower ball joint recall work was completed and keep the paperwork; have a mechanic check both sides for play, torn boots or noise before buying.

   2 excerpts from owner complaints in NHTSA records

   “I was driving to my local mcdonald's drive through and I felt something unusual on my steering wheel. I got out and checked near front suspension and I found out that the tie rod on the right side is broken/disconnected. I was fortunate enough not to experience this broken tie rod on highway.”

   NHTSA complaint #10197753, filed 2007-07, 38,000 miles

   “We have a Toyota Tundra a 2004, my husband said it was steering like something was catching he took it to a repair shop they could not find anything wrong, so we picked it up that same day, took it on a trip, on our way back going 70 MPH on the highway it felt like the whole front drivers side of our truck fell off, it was a terrible terrifying jolt my husband knew that we had lost the tire and rim sparks were flying everywhere as we were sliding down the highway on the axel, luckily we were on a straight away with no traffic but one vehicle …”

   NHTSA complaint #10151613, filed 2006-03, 52,000 miles
3. 3
   Body and structure

   Rear axle housing and differential rust-through

   • 35 complaints (8%)
   • median 128,000 mi at 9.7 yrs old (25 state mileage)
   • owner-quoted repair $3,500 (median of 5 quotes)
   • filed 2009–2021

   Owners report the rear differential or axle housing rusting through and leaking gear oil, sometimes described as flaking metal or a seal that cannot simply be replaced because the housing itself is corroded. Complaints also mention rusted leaf springs, emergency brake cables snapping from corrosion, and a dealer recommending replacement of the whole rear end. Some owners connect this to the same corrosion seen on the frame. Mostly reported between about 67,000 and 180,000 miles.

   What to check: Look for oil weeping around the rear differential cover and housing, flaking rust on the axle tubes, and check leaf springs, brake lines and parking brake cables for corrosion.

   2 excerpts from owner complaints in NHTSA records

   “Brought vehicle in for new muffler and tailpipe. Mechanic showed me a leaky rear seal because the metal cover was rusting through. Also showed me main frame and suspension points which are , in his words, like rust holding hands .”

   NHTSA complaint #10521855, filed 2013-06, 95,000 miles

   “I recently noticed a leak under the rear of the vehicle. Upon inspection, the differential was found to be rusted right through and leaking. I examined the frame as well and noticed severe rusting in various places on the frame. I never received a notice of recall on the frame. Apparently there is not only frame damage to many tundras, but also to necessary working parts. I have never had an axle rot out on any of my cars and because of the inability to simply repair a seal, the entire axle will need replacing? Seems a bit extreme. …”

   NHTSA complaint #10548311, filed 2013-10, 160,000 miles
4. 4
   Brakes

   Brake pedal fading or going to the floor

   • 30 complaints (6%)
   • median 82,204 mi at 7.6 yrs old (23 state mileage)
   • 5 mention a crash, fire or injury
   • owner-quoted repair $3,700 (median of 5 quotes)
   • filed 2005–2026

   Complaints describe the brake pedal sinking toward the floor or needing repeated pumping to stop, with fluid loss that was traced in some cases to a master cylinder leaking into the brake booster. Other owners report air repeatedly entering the brake lines without visible fluid loss, and one describes reduced braking while descending a hill in light snow. Dealers in some cases told owners the behavior was normal, while others performed repeated repairs. Reported from about 20,000 to 180,000 miles, including several cases under 65,000 miles.

   What to check: Check pedal feel for sinking or sponginess with the engine running, look for fluid loss at the master cylinder and booster, and ask whether any brake hydraulic work has been done.

   2 excerpts from owner complaints in NHTSA records

   “When we drive the truck, when you press the brakes they often go all the way to the floor. Driving while on city streets as well as on the freeways. You have to pump them in order just to stop before hitting anyone. After driving 30 miles, we have to refill the master cylinder with brake fluid. We have taken it to the mechanic three times for them to find no leak. A friend looked at it and found that the master cylinder is leaking into the brake booster. We do not feel safe driving this vehicle in this condition. …”

   NHTSA complaint #11278505, filed 2019-11, 125,000 miles

   “Truck was purchased brand new. It was brought to dealer for recall and they did not resolve the issue. Now recall is expired and vehicle is dangerous to drive and frame is rusted and there are holes. Almost had an accident when I turned and went down a hill and the brakes did not hold. Other incidents have occurred over the years.”

   NHTSA complaint #11320509, filed 2020-04, 116,000 miles
5. 5
   Air bags

   Passenger airbag inflator recall not completed

   • 58 complaints (12%)
   • median 125,000 mi at 12.4 yrs old (27 state mileage)
   • 9 mention a crash, fire or injury
   • filed 2007–2026

   Complaints describe long waits and difficulty getting the passenger-side airbag inflator replaced under the Takata-related recalls, with owners saying dealers lacked parts or asked them to bring the vehicle in and leave it for hours. One owner describes the airbag failing to deploy in a crash. Others mention that the requirement to have the work done within a regional campaign left some vehicles unrepaired. Reports are spread across a wide mileage range, from about 55,000 to 180,000 miles, and were filed over many years.

   Recall 19V741000Recall 18V883000Recall 15V285000Recall 15V2860004 related service bulletins

   What to check: Ask for documentation that the passenger airbag inflator recall was completed, and check the recall status by VIN before purchase.

   2 excerpts from owner complaints in NHTSA records

   “The contact owns a 2004 Toyota Tundra. The contact stated that while driving approximately 60 MPH during heavy rains, the vehicle hydroplaned and spun several times before the front end crashed into a guardrail. The driver's side air bag failed to deploy, causing the driver's chest to strike the steering wheel. A bystander assisted the contact out of the vehicle and called an ambulance and the Police. The contact was transported to the emergency room by ambulance. …”

   NHTSA complaint #11762695, filed 2026-09, 185,000 miles

   “The contact owned a 2004 Toyota Tundra. The contact stated her husband was driving at an unknown speed, when he unexpectedly collided with an embankment and the air bags deployed. The contact husband was fatally injured and was pronounced dead at the scene. A police report was filed. The vehicle was towed to a lot for further investigation. The dealer and the manufacturer were not notified of the failure. The contact referenced the failure to NHTSA campaign number: 15v286000 (air bags). The failure mileage was 180,000.”

   NHTSA complaint #11343032, filed 2020-08, 180,000 miles

Buying note. On this model year the most consequential thing to verify is the frame and underbody condition, so a pre-purchase inspection on a lift is worth doing before anything else. Also confirm that the ball joint and airbag inflator recalls were completed, and budget for suspension and brake work on higher-mileage examples.

Summary written with AI from a sample of 60 NHTSA complaints for this model year (picked at random, with complaints that state a mileage and recent ones taken first), then checked automatically against the source records. Where a problem shows a complaint count, every complaint for this model year was matched with fixed keyword rules (written with AI and tested against the sample), and the mileage, age and repair figures are calculated from those complaints; owners' figures are as stated, not verified. Other counts refer to the sample. The excerpts come from NHTSA's public complaint records and are unverified; capitalisation is normalised, NHTSA staff notes are removed, and shortened text ends with “…”. Something wrong? Request a correction.