Rust or structural corrosion on the 2008 Toyota Tundra
When rust or structural corrosion gets reported
Owners of the 2008 Toyota Tundra report rust or structural corrosion at a median of 90,000 miles. A quarter of the reports come in before 30,000 miles and a quarter after 110,000 miles, from 8 reports that carried an odometer reading.
A part like this is normally expected to survive 120,000 miles. It is the 10th most-reported problem on this model year.
The mileage distribution
The reported range runs from 20,000 miles at the tenth percentile to 135,000 miles at the ninetieth, a spread of 115,200 miles across the middle 80% of reports.
A spread this wide points at use rather than design. Towing, climate, service history and city mileage all move a failure like this, so the median is a weak guide to any individual car.
38% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 20,000 miles | 30,500 miles | 87,650 miles | 108,500 miles | 135,200 miles |
Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.
What a percentile can and cannot tell you here
These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.
What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.
Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.
What happens, and what it costs
Putting it right typically runs $500–$6,000 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.
The same failure on other years
The same failure is reported on 12 model years of this car. It shows up earliest on the 2007, at a median of 45,000 miles, and latest on the 2010 at 145,000 miles.
By volume the 2000 carries the most reports, with 166; the 2008 has 12. A mode that appears across most years of a model is usually a design choice rather than a bad batch.
If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.
Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens
What owners wrote
Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.
Tl* the contact owns a 2008 toyota tundra. The contact stated that the trailer hitch, the frame receiving rear area and the rear bumper was severely corroded. The hitch frame was fractured in pieces due to the corrosion. The manufacturer was made aware of the failure and the contact was advised that the vehicle was not repairable. The approximate failure mileage was 34,000 and the current mileage was 36,000. *tr
80,300 miles. June 2, 2016 removed my bed liner to clean out from hauling a load of topsoil. Discovered rusting/bubbling on the floor surface. 2007-2011 toyota tundra truck bed floor rust tsb issued 110/17/12. My VIN falls into the category but it falls past the 60 month/unlimited miles corrosion warranty. I keep my truck immaculate and very well maintained....hence the bed liner. If I would have treated my truck differently and not protected the bed with the bed liner, I would have discovered the rust sooner and probably been covered. Penalized for taking care of my truck. The local dealer tried very hard to get toyota to cover the repair but the toyota reps would only offer $2000 toward a potential $13000 repair. I have been a toyota customer since 1990 and I am extremely disappointed with toyota. This issue has absolutely nothing to do with customer neglect...it's neglect by toyota who will not stand by their product. As far as this being a safety issue, the rust is concentrated where the bed is connected to the frame. If I did not discover this, it could potentially separate from the truck frame while driving/hauling a heavy…
So long story short my 2008 double cab 6.5 foot bed was taken back to the dealer for the factory or dealer (in mid 2009) installed plastic bed liner rubbing the paint off in the bed and discoloration of the back bumper or delamination as toyota called it. Toyota replaced the bumper free of charge due to the corrosion warranty and the dealership not undercoating the back of the bumper, great no problem there. But never in any of the records did the service rep record that the bed could corrode! Later to find out when taking the truck to get a spray in liner I dropped it off in august of 2016 later to get a call saying I should take a look at my bed before they did any work to find a hole rotten through the bed an paint that was bubbled, cracked and flacking off. I did some research on line to find a tsb for my exact problem. Its tsb-0101-12, I never got word of this till I dug online to find this! I took the truck to toyota to be told they could not help me because there was no warranty. So I contacted the north east regional claims manager to be told that since there was no record of this complaint during the warrantee period they…
Also reported on the 2008 Toyota Tundra
Other speed control problem
Other engine problem
Other body or interior problem
Other powertrain problem
Other electrical problem
Other suspension problem
How far this goes
Complaints are voluntary, so 12 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.
Questions this page answers
At what mileage does rust or structural corrosion happen on the 2008 Toyota Tundra?
Across 8 owner reports that included an odometer reading, half were filed by 90,000 miles. A quarter were filed before 30,000 miles and a quarter after 110,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is rust or structural corrosion on the 2008 Toyota Tundra?
12 reports have been filed with NHTSA, about 0.1 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.
What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars
Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed