10.0

really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
0 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.

1999 GMC Sierra 3500 exhaust system problems

exhaust system problem

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1999 GMC Sierra 3500 Owner Comments

problem #1

May 312000

(reported on)

Sierra 3500

  • miles

A D V E R T I S E M E N T S

Cab keeps filling up with exhaust fumes, causing passenger to get sick. Dealer claims engine gets too hot, causing engine manifold to warp and gasket to blowout. It is a design flaw.

- Ann Arbor, MI, USA

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