In the master cylinder. The same place it's located in a 1998 Buick or any other other car for that matter. I imagine you're asking where the brake fluid master cylinder is because that's where all brake fluid is stored until it's pushed down the brake lines (which, by the way are also filled with brake fluid all the time). What you're looking for is the power brake vacuum device is is on the firewall between the engine and interior on the front of the car. It's usually on the driver's side.
Dot 3
A 1995 Buick LeSabre takes 7.4 quarts of transmission fluid. Dextron lll transmission fluid is recommended for use in the Buick LeSabre.
On a1996 Buick Le-sabra it is on the Driver side under hood right below brake fluid reservoir.
A 2005 Buick LeSabre automatic transmission requires 7.4 quarts of Dexron III fluid.
what type pf power steering fluid take for a 94 buick lesabre
Could be low brake fluid. Emergency brake could be partly on-make sure it is pulled completely in the up position.
Brake fluid could be low or emergency brake might be partly on. I'd check your fluid right away. This just happened to me and i found out it was my rear driver side break like had rusted out. could be the same thing for you.
Owner's manual.
It is near the passenger compartment on the passenger side of the car. I have a 2001 and looked this up in the manual.
pictures of where to put power steering fluid in a 1990 buick lesabre
DextronDextron
dexron III