10.0

really awful
Typical Repair Cost:
$120
Average Mileage:
95,000 miles
Total Complaints:
2 complaints

Most common solutions:

  1. added dye electric grease and resealed front and rear end connector (1 reports)
  2. not sure (1 reports)
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problem #2

Jun 012016

Grand Prix V6 3.8L

  • Automatic transmission
  • 135,000 miles

Car suddenly started cutting off without warning, irrelevant to speed. Got a "Reduced engine power" message after "Starting disabled due to Electronic Throttle Control" message. First dealer said they couldn't find anything wrong with it. Second dealer said to replace Throttle Body and Brake Switch after diagnostics completed. They wanted $1600 to do that plus spark plugs. So, i got it home, replaced Throttle Body and brake switch. Car is STILL stalling out without warning. No cough, sputter, lurch...nada. It is happening even when the car is idling in park. I spoke with Pontiac Customer Assistance to no avail...simply telling me to take it back for diagnostics and that any towing, repairs, etc will be at my expense. I WANT to drive my car, but I do NOT want to get hit or stuck in an intersection!

- Tracy B., Smyrna, GA, US

problem #1

Jun 202009

(reported on)

Grand Prix 3.2L

  • Automatic transmission
  • 55,000 miles

driving down the road and the reduced message light came on could not drive the car over 45 miles an hour took straight to the dealer they said the app system on left front strut has moisture in it removed moisture from x101 (what ever that was) added dye electric grease and resealed front and rear end connector

- witeout64, Ansted, WV, US