4.0

definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
30,400 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 Sonoma cooling system problems

cooling system problem

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1999 GMC Sonoma Owner Comments

problem #1

May 052003

Sonoma 6-cyl

  • Automatic transmission
  • 30,400 miles

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

The heater on my vehicle has stopped working and the manufacture (GMC) and the dealership refuse to cover it under warranty. There is a NHTSA bullerin on this (634218). I would like to know how many other vehicles like mine (1999 GMC Sonoma) have experienced this problem.

- Santa Clara, CA, USA

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