Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
67,480 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 Mazda MPV engine problems

engine problem

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2003 Mazda MPV Owner Comments

problem #5

Jul 052013

MPV 6-cyl

  • 110,000 miles


We drive to lake Tahoe in my MPV van with 5 people in it. The van jerked when driving accelerating from 40 to 50 mph. We changed driver on the way, and both driver felled the same thing. It seems a transmission shift shock or shift flare. Then when "google" the problem on internet, I found out that it is a very common problem for Mazda MPV 5-speed auto transmission. Many people experienced a sudden failure after a few weeks of the "shift flares". this can be very dangerous. Mazda should offer free repair for this common failure of their product. I'm engineer and I take good care of my cars and change all oil and atf on schedule. My Ford minivan 96 areostar have run more than 260 K mile with original engine and transmission. It is still running strong.

- Sacramento, CA, USA

problem #4

Jun 302011


  • 110,000 miles
The contact owns a 2003 Mazda MPV wagon. While driving 75 mph with the cruise control activated, the contact stated that the vehicle suddenly accelerated up to 90 mph without warning. The vehicle was towed to the dealer where they inspected it and was unable to duplicate the failure. The manufacturer was not notified of the failure. The vehicle was not repaired. The current and failure mileage was 110,000.

- Eldorado, KS, USA

problem #3

May 082010

MPV 6-cyl

  • 86,398 miles
The contact owns a 2003 Mazda MPV. The contact stated while driving, the vehicle suddenly began to accelerate. When she attempted to stop the vehicle, the brakes would not respond. The contact shifted into neutral gear in order to stop the vehicle. The contact continued driving to her residence. The vehicle was towed to the dealer who stated that a part of the accelerator pedal had been tightened which caused the failure. The vehicle was repaired at that time. The manufacturer had not been notified. The current mileage was approximately 91,000. The failure mileage was 86,298. Updated 02/23/11 updated 02/28/11

- Chester, VA, USA

problem #2

May 082006

MPV 6-cyl

  • Automatic transmission
  • 29,000 miles
2003 Mazda MPV began to rapidly accelerate while entering my driveway. Even though applying brakes at full force, my vehicle crashed into my garage door. While trying to put gear shift into neutral, I accidentally shifted into reverse. The vehicle again accelerated, the whole while I had both feet pushing on the brakes as hard as I was able. The minivan then shot out in reverse and hit my neighbors' car parked on the street in front of their house.

- Annapolis, MD, USA

problem #1

Dec 012003

MPV 6-cyl

  • Automatic transmission
  • 2,000 miles
While slowly accelerating, the RPM jumps up about 600-800 RPM and the transmission jumps, somewhat violently, into 3rd gear. It only occurrs from 2nd to 3rd. In does not matter what the weather is or how long the vehicle has been operating. It happens about 70% of the time. We have taken the vehicle in twice and the dealer (sherrits sic.) state they can not duplicate the problem and they have not found any fault codes, therefor, there's nothing they can do. I am to continue to monitor the problem. Our van has 6010 miles on it.

- Hagerstown, MD, USA

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