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.


definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
27,733 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.

2004 Kia Optima brakes problems

brakes problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2004 Kia Optima:

Unsubscribe any time. We don't sell/share your email.

2004 Kia Optima Owner Comments

problem #3

Nov 162006


  • 80,000 miles


The contact owns a 2004 Kia Optima. While driving at an unknown speed, the contact heard a grinding noise coming from the rear passenger side tire. The vehicle was taken to the shop the following day for an oil change, and it was discovered that the rear passenger caliper was frozen and would not release. The rotor and caliper were replaced. Approximately 8,000 miles later, the pads and rotors had to be replaced again. There is no recall regarding this failure. The current mileage was 17,080 and failure mileage was 80,000.

- Saracuse , NY, USA

problem #2

Dec 282004

Optima 4-cyl

  • Automatic transmission
  • miles
I recently purchased a Kia Optima 2004, on December 28,2005 I notice a piercing noise coming from the back of my car. I took the car into the local dealership who indicated that I needed new brake pads and that my rotors were rusted. My question is how can a car that is brand new and only driven for 14 months have rusted rotors. Isn't there safety standards on material used so that this does not occur in such short of a time. It was not covered under warranty which resulted in a bill totaling $659. My purpose of purchasing a new car was to avoid constant repairs right away. I feel that all of the fine print was not disclosed when Kia advertises a bumper to bumper warranty for a car up to 100,000 miles. I even called the national customer service hotline for Kia and they had no explanation as to why this could have occurred in such short of a time. The car has only seen 1 winter.

- Battle Creek, MI, USA

problem #1

Aug 062004

Optima 4-cyl

  • Automatic transmission
  • 3,200 miles
Bought Kia Optima on June 22, 2004 VIN# [xxx] and have since had seven service appointments, replaced two sets of drive belts, replaced a leaking power steering rack, replaced a leaking fuel regulator, machined the front rotors, lost time from work, lost productivity from work as well as jeopardized my wife's work from car pooling for five months, completed scheduled arbitration with the BBB without success for four problems: Acceleration delay, low grinding brake noise, low vibration steering noise, and loud squealing noise from the drive belts. Updated 07/24/2012 information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6)

- Frederick, MD, USA

Not what you are looking for?