Five problems related to brake hoses, lines/piping, and fittings have been reported for the 2003 Toyota Tundra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Toyota Tundra based on all problems reported for the 2003 Tundra.
The whole chassis frame for my truck is significantly and dangerously rusted and it is breaking apart which is a safety issue for me, my family, and other drivers. This also has lead to my breaks lines failing due to rust which almost caused an accident due to me not been able to stop on a red light. There is significant rust damage to the chassis frame and in some parts of the chassis frame that were welded from factory have broken off. In other sections of the chassis frame pieces have started to fall off and there are holes through the chassis frame where there should not be holes. Parts that should be solid steel have holes through it. The rust is so bad on the chassis frame that it has rusted out the fuel lines as well just like it did the brake lines. Sections where the engine mounts go in the chassis are also heavily damage due to rust. The rust is so bad I have step through parts of the bed of the truck when standing on it. There are also holes on the bed of the truck where you can see through the ground due to the rust damage.
Frame corrosion was not properly addressed during 2012 recall. As a result the frame has corroded in multiple areas and the brakes just failed due to brake line corrosion. Toyota is refusing any additional claims for damages. However they should have done more to address the frame corrosion during the 2012 recall.
I was recently approaching a red-light about a mile from work when I unexpectedly & suddenly was unable to stop the truck. I nearly collided with traffic in my lane & had to veer into the opposing lanes to avoid a collision. Turns out my brake-lines failed due to excessive rust which I've recently come to learn is a problem on these particular trucks. I've never had this happen before even with vehicles with well over 200k miles on them let alone well-less than 80,000; even from the same manufacturer. My dealer had to retrieve the truck from my job(130-mile round trip) & he even stated he hasn't seen brake lines fail like this one did & speculated it was due to them sitting near the frame where road-salt & "shit" collects which causes them to pre-maturely rot out, potentially(obviously) causing them to burst. It was repaired under its warranty but the near-miss I encountered with it never, in my opinion, should've happened particularly without warning or with the present mileage of the vehicle. The brake warning indicator on the dash did work but only after all fluid shot out of it & braking was suddenly not enough to stop in time. I've contacted the manufacturer(Toyota) about this & was run around to no avail. I feel this could be a disaster waiting to happen as there's no doubt still many of these vehicles still on the roads. I have no pictures to upload but my dealer can verify the repairs done after this happened.
Truck was being driven 250mi from destination a to b. While enroute, leaving the highway for a rest stop, the brake pedal went to the floor. Brake failure, unable to properly stop. Had truck towed to a local dealer who identified failure in (2) front steel brake lines. Total $ 428; and of course the situation could have been a lot worse. Vehicle has been maintained, all recommended service intervals, etc. Service tech stated looked to be due to rust - corrosion. I have never had this occur on a vehicle this little mi. And years. I am going to write Toyota as well.
Took 2003 Toyota Tundra in for frame rust corrosion program 09v-444000. Was told frame and other components had extensive rust and multiple 10mm holes by lead service technician at local Toyota dealership. Service manager explained that my 2003 Toyota Tundra frame was extensively rusted and unsafe to be on the road and they wanted to take my truck immediately and provide a rental car due to safety concerns. Asked for a plan of action of the scope of work to be performed (corrosion compound verses frame replacement) before giving possession of vehicle. Photos of 2003 Toyota Tundra frame, rear cross members, spare tire carrier, rear brake lines & fuel tank mounting system were taken and sent to lead service tech three states away in texas. Was informed extensive frame rust exists on all components (frame, rear cross members, spare tire carrier, rear brake lines & fuel tank mounting system) but it is not covered because vehicle is no longer registered in wisconsin. Purchased this 2003 Toyota certified vehicle in wisconsin in April of 2010 and no information was given to me at regarding the NHTSA investigation or any rust inspections that were performed. Toyota corporation refuses to repair, replace or add corrosion resistant compound to any severely affected rusted components. Significant rust issues exist on this vehicle and still Toyota corporation refuses to provide any documentation of their inspections. Toyota corporation will not put in writing that the frame, rear cross members, spare tire carrier, rear brake lines & fuel tank mounting system is safe or road worthy. Deadline for all rust repairs is December 31, 2012. Toyota corporation is stalling consumers to keep from doing any repairs and leaving unsafe rusted 2003 Toyota Tundra's on the highways. Please initiate a new NHTSA investigation regarding this matter for the safety of consumers.