NHTSA — Visibility: Defroster/Defogger System Problems


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
56,500 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 Pontiac Grand Prix accessories - exterior problems

accessories - exterior problem

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2004 Pontiac Grand Prix Owner Comments

problem #2

Jun 182011

Grand Prix 6-cyl

  • 113,000 miles


Our 2004 Pontiac Grand Prix has had two failures of the heater motor in three years. In both cases noxious fumes and smoke came from the dashboard. I consider this a safety issue because the sight of smoke coming from the dashboard while on a busy interstate (we were) can result in great anxiety. I'm an electrical engineer and my mechanic let me see the parts. The smoke came from a resistor that is part of the speed control for the motor. It's a very poor design, with heat fins to dissipate the heat into the heater/ac air flow. If the motor starts to drag, current goes up and airflow goes down, with the result that the resistor heats up to the point where it puts smoke into the air stream. I consider this extremely poor design, and a potential fire hazard. I've written to the manufacturer and suggested a new design (I hate having to re-design things done by amateurs!).

- Lowell, MA, USA

problem #1

Feb 102008

Grand Prix 6-cyl

  • Automatic transmission
  • miles
When I turn my vehicle off the heater/blower continues to run. I did some research on this and it seems that Grand Prix's are notorious for this. I believe this is a known issue with the vehicle and I should not have to pay for it, it should be a recall.

- Grand Rapids, MI, USA

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