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8.4

pretty bad
Typical Repair Cost:
$1,100.00
Average Mileage:
85,493 miles
Total Complaints:
10 complaints

Most Common Solutions:

  1. not sure (8 reports)
  2. replace ignition switch (1 reports)
  3. replaced ignition switch (1 reports)
2002 Pontiac Grand Prix AC / heater problems

AC / heater problem

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2002 Pontiac Grand Prix Owner Comments

problem #10

May 252013

Grand Prix GT 3.8L

  • Automatic transmission
  • 40,428 miles

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

Returning home on vacation traveling through St. Louis rush hour, the car began going nuts. the air conditioner went off, the headlights going off and on and no read out from the dash. The car is my wives it has 40828 miles.

- , Lawrenceville, GA, USA

problem #9

Jun 012008

Grand Prix

  • Automatic transmission
  • 140,500 miles

part of the laundry list for this demon spawn of a car especially as a single parent on a limited income: comes down to fix for convenience or for drive-ability

- , Clearfield, Kentucky, USA

problem #8

Jan 172011

Grand Prix 3.8L V6

  • Automatic transmission
  • 60,000 miles

Intermittent problem with blower, ac, running lights, rear defogger. Blower usually works on 5. Jiggling the key seems to help, but no always. Leaving the key in the run position for 15 seconds before starting the car works sometimes.

Update from Dec 30, 2011: had to replace the ignition switch

- , Sudbury, ON, Canada

problem #7

Apr 012010

Grand Prix GT 3.8L

  • Automatic transmission
  • 160,000 miles

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

Randomly, the driver information center, blower motor, heated seats and auto headlights would shut off, usually coming back on during the drive. Now that its started to get cold here in Iowa and I could really use the heat for myself and my 3 year old, it never wants to work. I've heard ignition switch from some other people on here, please let me know if this really fixed it for you, thanks!

- , Des Moines, Iowa, USA

problem #6

Dec 012008

Grand Prix LX 3.8L

  • Automatic transmission
  • 100,000 miles

I bought the car and first noticed the heater would come on and off with a mind of its own. I then noticed the driver information center (dic) was not coming on. Then noticed when heater would come on the lights would dim and the information center lights would come on but dim. The frustrating part is financially, I cant afford to have someone dissect for electrical issues, And in winters in Wisconsin with two kids I need to know I have heat to at least defrost. With purchasing a nicer car I would expect the heat to work but bc its not blower or thermostat its more of a manufactured problem. Seeing as how many others report the same exact problems.Not happy! What can I do? I heard a new ignition switch might work. What does the ignition switch have to do with heater?

- , Watertown, WI, USA

problem #5

Dec 172008

Grand Prix GT 3.8L V6

  • Automatic transmission
  • 53,000 miles

first mech has always been good to me.so when all this happened I knew it was not his fault because we talked about solutions. tried new panel controls then comp diagnosis for other problem then finally replaced ignition switch which seems to be major intersection for electrical problems of car EXCEPT FOR DIG READOUT OF RADIO LOL. anyway heater/ac working fine now for 6months.good luck.

- , Lynbrook, NY, USA

problem #4

Dec 102008

Grand Prix GS 3.1L

  • Automatic transmission
  • 130,000 miles

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

I Just need know what it needs so I can fix it!

If I knew the answer like to fix it. Same problem as the others.

- , Los Lunas, NM, USA

problem #3

Sep 012008

Grand Prix

  • Automatic transmission
  • 75,000 miles

Heater works, but blower will come and go like it has a mind of it's own. When blower stops working, so does the auto lights. Luckily I can still turn them on manually. However, winters in MN require heat all the time, not just occasionally.

- , Blaine, MN, USA

problem #2

Jun 112007

(reported on)

Grand Prix GTP 3.8L

  • Automatic transmission
  • 49,000 miles

AC blower would go out, info center goes out, fan wouldn't work on any speed, headlights don't work, and it pretty much does nothing, except when it wants to. It is hot as hell and no air on car that has less than 50,000 miles. It's sad when reviewing problems with the Pontiac's on the internet that a number of them have had this same problem and Pontiac refuses to recall and fix what is broken.

- , Greenville, NC, USA

problem #1

Feb 212007

(reported on)

Grand Prix GT 3.8L

  • Automatic transmission
  • 47,000 miles

Blower motor quits, Won't work on any speed. @ the same time the driver info center goes blank, also the headlights goes out if in the auto mode. Might drive just a few miles and it all comes back on. Wifes car so needs fixed or I may be.

- , Moundville, MO, USA

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