Originally posted by DroppedGS
I have a 91 LS 400 and my Trac & ABS Light came on and now it won't go off. What could be the problem? When I push the Trac Light it doesn't do anything.
You have a problem in both systems.
Seriously though, do a search and you will find lots of threads aboout TRAC and ABS errors. Two things you can do:
1) Go to your dealer for a diagnostic (usually 1hr labor, so about $100)
2) Pull the trouble codes and post them here--many of us have factory service manuals and we can tell you what part of the system is acting up.
Being that it's springtime in most parts and there isn't snow on the ground, you probably don't have to worry about the TRAC system (until I decide to cough up $500 for the accumulator, I'm frequently driving my 90 LS with the TRAC light on) too much. I would be more concerned with the ABS.
Post your error codes once you pull them.