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.

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really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
14 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 Chevrolet Suburban exhaust system problems

exhaust system problem

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2004 Chevrolet Suburban Owner Comments

problem #2

Jan 202005

Suburban 8-cyl

  • Automatic transmission
  • miles


2004 Chevy Suburban exhaust system produces noise at idle ;driving;and after shut down. GM claims noise (popping) is from muffler heat shield expansion and contraction. Tsb to correct noise (modifying heat shield) is ineffective. In 2004 motor magazine reported GM acknowledged the noise came from trapped water inside the muffler. The water turns to super heated steam and produces a pop or bang inside the muffler. GM will not replace the muffler as the problem goes back to 2000 model year. Moreover people ask what that strange noise is from my Suburban, I tell them a defective muffler.

- Farmington, MN, USA

problem #1

Aug 092004


  • Automatic transmission
  • 27 miles
Vehicle had an odor that smelled like antifreeze. Consumer and all of her family members and friends became ill after riding in the vehicle. They had headaches/burning eyes/numbness, and sore throats. The problem was reported, and the manufacturer stated nothing was wrong with the vehicle, however consumer was told that prior to the purchase of the vehicle there was an antifreeze spill, and she was not made aware of that at time of purchase. Consumer stopped driving the vehicle.

- Grayslake, IL, USA

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