Check out this link. It includes pictures. I am certain your 2000 Regal will be very similar if not identical to the 2001. http://www.clubgp.com/cgi-asp/mods.asp?modid=141
I had the same problem with my 98 buick regal gs and it turned out to be the ignition switch.
http://www.automotivehelper.com/topic1054152.htm or Goole "ignition switch replacement 2001 regal"
where is temperature switch on 1996 buick regal
The cost to replace a turn signal switch on a 1995 Buick Regal typically ranges from $100 to $200, including parts and labor. Labor costs may vary depending on the garage's hourly rate, but the job usually takes about 1 to 2 hours. It's advisable to get quotes from multiple garages for the best price.
were can i locate and replace a starter for a 1998 buick regal?
How do you replace the morror assembly for a 2001 Buick Regal
How do you replace the fuel filter on a 2003 Buick Regal?
how to replace a radiator in a 1996 buick regal
You have to get it from a Buick dealer.
Flasher is bad. to replace it it is under the dash at the back of the steering column.
how to replace master cylinder on 1996 buick regal
Pull the turn signal stalk towards you to activate your high/low beams