Notes: A dependable pickup option that does have a slight history of frame corrosion. Even though mud looks cool on a truck, it's best if you run this through the car wash every now and again.


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
102,000 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2003 Toyota Tundra drivetrain problems

drivetrain problem

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2003 Toyota Tundra Owner Comments

problem #4

Aug 262013


  • 180,000 miles


The contact owns a 2003 Toyota Tundra. The contact stated that the rear differential was leaking. The dealer stated that the rear end housing needed to be replaced. The vehicle was not repaired and the manufacturer was notified. The VIN was unavailable. The approximate failure mileage was 180,000.

- Standish, ME, USA

problem #3

Jul 152014


  • 80,000 miles
The contact owns a 2003 Toyota Tundra. The contact stated that while having the vehicle serviced, he was informed that the differential was rusted out and that fluid was leaking. As a result, the differential needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 80,000.

- East Greewich, RI, USA

problem #2

Mar 052011


  • 107,000 miles
The contact owns a 2003 Toyota Tundra. The contact took the vehicle in for unrelated repairs when the dealer informed him that the rear differential was leaking and corroded. The dealer advised having the component replaced but the vehicle was not repaired. The current and failure mileage was 107,000. The VIN was unavailable.

- Palmer, NY, USA

problem #1

Apr 042006

Tundra 4WD 8-cyl

  • Automatic transmission
  • 41,000 miles
I'm the owner of a 2003 Toyota Tundra (limited slip differential) SR5 4X4. In Apr I brought my truck into the universal Toyota dealer here in san antonio tx to replace a missing clamp and for a rumbling noise coming from underneath the truck. The first mechanic said he couldn't hear the noise, and again I brought the truck back in Jun as the noise was getting worse. The lead mechanic then heard it and said that the noise is coming from the differential and that he has another Tundra doing the same thing. I asked that he call the Toyota tech line to inquire/report this. He notified me the next day that the Toyota tech person said that this is a normal sound and not to worry about it. However I do have some safety concerns as I don't believe this to be a "normal" indication of what a differential should sound like.

- Converse, TX, USA

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