2003 Saab 93 got bumped on rear bumper I'm getting an error message for the brake light but it works. Ideas

depends if u mean parking brake or low brake pressure .Parking break would simply mean connection got a bit wached off .If you mean low brake pressure , check your brake oil levels in engine bay .

l own a 2003 9-3 and l can tell you firsthand that Saab electronics are flaky and inaccurate at best. When your car got bumped l wonder if that caused the error or if the error occurred at the same time.

Unfortunately, your best bet is to take it into the dealership because either there is a problem or your computer (the wonderful SID) will need to be reset and unfortunately, they are probably the only technicians that may have the equipment to do so.

l was also getting that message and hadnt had any bumps. l was getting the message on and off for about three weeks and each time l checked the lights they were working so l ignored the message and it suddenly stopped.Try this site saabforums.com

l get that message somtimes check you break fluid.

check your break fluid