2.8

hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
50,700 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.

2003 GMC Sonoma drivetrain problems

drivetrain problem

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2003 GMC Sonoma Owner Comments

problem #1

Apr 032006

Sonoma 4WD 6-cyl

  • Automatic transmission
  • 50,700 miles

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

It has been determined that water has contaminanted the oil in the rear differential causing a mechanical failure. I have been informed that my extended warranty does not cover this issue even though GMC is aware that problem with a vent tube location is one source for water infiltration. I have a GMC document with specific instructions for mechanics to check for the improper vent tube location if water is indeed found in the rear axle fluid.

- Plantsville, CT, USA

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