Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an exposed vehicle, especially the horizontal areas such as the hood, roof, and decklid, significant damage to the painted surfaces can occur. Acid rain damage can typically be identified on vehicles by the presence of stains on the paint surface that resemble hard water spots. Unlike water spots however, acid rain damage cannot be removed by regular washing procedures. Also, because acid rain can etch and soften the paint, normal buffing or polishing repair procedures should not be attempted. This can cause further damage
full bulletin at NHTSA ↗2006 Toyota Sequoia body problems
moderate Owners of the 2006 Toyota Sequoia have filed 35 NHTSA complaints about the body, typically surfacing around 127,000 miles at roughly $1,500 to repair (U.S. federal records, as of August 2026). Source: NHTSA Office of Defects Investigation. See body across all vehicles →
Failure mileage
Complaints
35
Recalls
0
Avg fix
$1,500
| Model year | body complaints |
|---|---|
| 2005 Sequoia | 20 |
| 2006 Sequoia (this page) | 35 |
| 2007 Sequoia | 21 |
| 2008 Sequoia | 12 |
| 2010 Sequoia | 4 |
What stands out
Of the 7 model years of Toyota Sequoia we track for body problems, this one carries the most owner complaints on file — 35.
Owners have filed 35 body complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering body on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is to shield the disc brake rotor from weather elements and initial rust before the vehicle is delivered to the customer. Consequently, the film should remain on the wheel for as long as possible.
full bulletin at NHTSA ↗The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and remain on a painted vehicle surface, especially the horizonal areas of the hood, roof, and decklid, significant damage can occur. This damage is the result of actual etching of the paint and appears as pitting or water spots. As acid rain droplets on the vehicle surface evaporate, the concentration strength of the acid increases, causing deeper and more rapid damage. This evaporation and corrosive action also occur more rapidly on dark colored cars as direct sun heat increases. It
full bulletin at NHTSA ↗Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal painted surfaces. This material protects from acid rain, environmental fallout, and rail contamination. Follow the Removal Procedure in this bulletin to remove the RapgardTM protective film within 90 days from initial application.
full bulletin at NHTSA ↗Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad tracks, train wheels, exposure to heavy machinery facilities, grinding, welding, etc. This type of contamination can be identified by the presence of small, red or brown particles on the paint surface. These particles are often difficult to see on dark color paints but can be easily felt when brushing a hand across horizontal body surfaces such as the hood, roof, or deck lid. Follow the Repair Procedure in this bulletin to clean vehicles that may have been subjected to contamination by airborne iron particles such as rail dust during rail transportation or extended storage near industrial ar
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners of 2006 Toyota Sequoias describe frame rust that develops rapidly and becomes severe—sometimes rendering vehicles unsafe to drive. Complaints show rust beginning as surface corrosion and progressing to perforations and structural holes, often 18–24 inches in size, particularly in the front and rear frame sections. Rust appears to originate from inside the frame outward, making it difficult for owners to prevent despite regular maintenance.
The rust damage cascades: suspension components like trailing arms, stability bars, and sway bar assemblies detach or break free from corroded frame attachment points. Brake line ruptures occur from internal corrosion. Owners report discovering frame rot at widely varying mileages—50,000 to 145,000 miles—yet the problem seems concentrated in vehicles operated in cold-weather, road-salt states.
Most troubling, owners consistently describe being told their vehicles are unsafe to drive. Toyota issued a limited service campaign (H0F) involving corrosion-resistant coating inspections, but owners report this did not prevent ongoing rust. Some note Toyota recalled earlier Sequoia model years (2000–2004) and other truck models (Tundra, Tacoma) for frame replacement, but excluded the 2006 model year—a gap owners consider unreasonable given identical frame designs and identical rust behavior. Dealerships cite class-action litigation and waiting for NHTSA recall authorization before performing permanent repairs. Owners who missed deadline windows for service programs found themselves with unpaired, unsafe vehicles.
Same Toyota Sequoia body reports on nearby years: 2005 · 2007 · 2008
Failure modes owners describe
Frame corrosion and perforation
Structural frame rust progressing from surface corrosion to severe perforation and holes, often 18–24 inches, particularly in front and rear sections. Rust originates from inside the frame and extends outward, compromising frame integrity.
When: 50,000 to 145,000 miles; concentrated in cold-weather, road-salt climates
Symptoms owners cite: Visible rust holes and perforations in frame; Rust extending through structural frame sections; Internal frame rust despite regular maintenance; Frame deemed unsafe to drive by mechanics; Vehicle fails state inspection due to frame rot
Repairs/costs cited: Frame replacement estimated at $10,000; dealerships waited for NHTSA recall authorization before performing permanent repairs; temporary welds were offered as interim solutions; corrosion-resistant coating applied under limited service campaign H0F did not prevent rust progression
Recalls/TSBs owners mention: Limited service campaign H0F involved corrosion-resistant coating and inspection; Toyota recalled earlier Sequoia model years (2000–2004) and other truck models (Tundra, Tacoma) for frame replacement but excluded 2006 model year; dealers cited pending NHTSA recall approval and class-action litigation; Toyota declined to honor frame program for vehicles that missed deadline windows
Frame attachment point failure and suspension component detachment
Suspension and stability components breaking away or detaching from corroded frame mounting points due to frame rot. Includes trailing arms, sway bars, and stability bar assemblies separating from the frame.
When: At varying mileages as frame corrosion progresses; one incident reported at typical driving
Symptoms owners cite: Trailing arm breaks away from frame during driving; Sway bar assembly completely detached and hanging loose from frame; Stability bar mounting points rusted out; Vehicle body swaying and bobbing with loss of control on freeway; Tie rod and sway bar assembly separated from frame; Odd sounds from undercarriage prior to failure
Repairs/costs cited: Components require welding back onto frame or replacement; frame replacement necessary to permanently resolve
Brake line rupture from internal frame corrosion
Brake lines corrode and rupture due to excessive rust in the frame and rear brake system components.
When: At varying mileages as frame rust progresses
Symptoms owners cite: Brake line rupture; Rear brake system corrosion; Excessive rust throughout brake line routing in frame
Repairs/costs cited: Brake lines require replacement; root cause is frame corrosion
Water intrusion through rear hatch area
Water leaking into vehicle at rear hatch and beneath rear seat area during rain due to loose or missing hardware.
When: Unknown mileage
Symptoms owners cite: Water entering vehicle at rear hatch; Water leaking under right center row seat; Loose bolts for left hatch shock
Repairs/costs cited: Multiple hardware pieces found missing from hatch shock bolts; bolts removed, cleaned, and silicone sealant applied; owner remains concerned problem could recur
Rear hatch latch failure
Plastic rear hatch latch breaks repeatedly, preventing access to spare tire and vehicle interior.
When: Multiple failures reported; owner replaced latch 3 times; another owner with 3 failures
Symptoms owners cite: Rear hatch latch breaks; Cannot access spare tire; Cannot access vehicle interior through rear hatch; Repeated failures of same component
Repairs/costs cited: Replacement cost reported at $600 per latch by dealership; plastic construction cited as inadequate
Synthesized from 35 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 5 most recent
Back in 2018 toyota did the undercoat to my 2006 Toyota sequoia frame to prevent rust. Now my frame is completely rotted out to the point i can’t drive my vehicle.
The frame, rear axle, suspension, brake lines components are severely rusted in particular the frame where it is rusting from the inside out. These frames suffer from the same issue as other Toyota trucks where Toyota replaced the frames. This rust condition makes these vehicles unsafe to be on the road. Toyota needs to recall of these vehicles before people are hurt. I purchased this vehicles…
Frame of this vehicle has lot of rust damage, is it still under manufacture recall? How can I ensure safety of my vehicle along with rusty frame? I’ll be glad to receive more information how to contact manufacturer in order to get this resolved. I drove this vehicle on Nov 19, 2023 last time just hear some knocking sounds while driving
The frame of the body of the Toyota is rusting very bad. For only having the car three years buying this as a certified car, the body shouldn't be this bad. I'll also be opening up a case with Toyota.
The driver side, rear, trailing arm broke away from the vehicles frame due to “frame rot” while driving. The vehicle became extremely dangerous to drive. Toyota has since declined to help. They said they notified us via mail of a customer service campaign addressing the premature rust issue, but we never learned of the program and lawsuit until after the frame broke and I almost crashed. Later I…
Had body trouble with your 2006 Toyota Sequoia?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the body problem on the 2006 Toyota Sequoia?
It's a documented issue but not catastrophic. 35 complaints have been filed. Repairs average $1,500 and most owners catch it before it causes a breakdown.
At what mileage does the body typically fail?
Across the 18 complaints that reported odometer mileage, most body failures cluster between 100,000 and 197,000 miles, with the median around 127,000. A quarter of owners report trouble before 100,000; a quarter make it past 197,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $1,500 for body repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to body?
No active recalls currently cover body issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2006/Toyota/Sequoia.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.