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.


pretty bad
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
3,900 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 Trailblazer EXT exhaust system problems

exhaust system problem

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2004 Chevrolet Trailblazer EXT Owner Comments

problem #1

Aug 252006

Trailblazer EXT 4WD 6-cyl

  • Automatic transmission
  • 3,900 miles


01/27/04,09/28/05,11/18/05 took vehicle in for service engine soon lights, 04/26/06 took vehicle in for metallic rattle sound suspecting heat shield on exhaust manifold. Dealership stated front backing plates were contacting steering knuckle. 04/21/06 began drive from okc, ok to vanouver, Washington, midtrip noted same noise. On trip noise became extremely louder. Stopped at cheyenne wy dealership couldn't get appt for several days. Husband removed heat shield in evanston wy on 8/23 and discovered cracked exhaust manifold. 41000 miles on vehicle. 2 dealerships in evanston wy would not touch us for several days. Contacted GM customer assistance who contacted dealership in slc, ut who would look at vehicle. Drove there but because over 36K, warranty did not cover and they would not fix vehicle under warranty and could not fix same day. Contacted dealership in vancouver wa upon return and they are trying to repair but have now discovered 3 cracked head bolts in addition to cracked manifold. Refusing to cover under warranty even though in for previously. Have admitted to not addressing heat shield at all in April. Extreme stress, inconvenienced and worry on vacation. No eta on repairs. Have requested all parts to be retained for investigation.

- Vancouver, WA, USA

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