I have a 2000 Grand Prix with the same problem. I found this response on another website:
"The problem is the blower motor resistor. This is a very common problem. It is located under the passenger side of the dash in front of the blower motor. The replacement part should be an updated and improved design."
Now I just have to figure out how hard to get at this is gonna be.
I had the exact problem w/ one of my own. It is the resistor board. It is common on GM vehicles newer. They redeigned this particular part due to failure history. It is simple to change;also. It is located on the righthand side of the vehicle inside the cabin. Look down in the corner near the firewall and you will see a cvr that needs to be removed. After removing that cvr you will see a harness with a plug on it. That's it. Remove the two screws and wala the resistor bank appears. Reverse these steps to complete. HAVE A GOOD TIME!!!
How many 3s in 313433535333?
When did women first get the right to vote?
How many times can 18 go into 100?
What letter is an animal?
What year woould you graduate high school if you were born in 1968?
What does the v in RSVP mean?
How many times did Joe Biden run for president?
What is the world’s oldest soft drink?
How many novels did Charles Dickens write?
What do the colors on America's flag mean?
How did Harry Houdini come up with his stage name?
What is modal fabric?
What were George Washington's false teeth made from?
Who was Yale University named after?
How much pavan is one kg gold?
Where is flora barber children?
Is marmot halal or haram?
What is the name of Lavanya in devyani serial?
Who is the man who sits next to Robin McGraw on the Dr. Phil show?
Is it illegal to pick tiger lilies in Alberta?
Problems that can occur with the hand fitting activities?