I would clean all the power and ground cable connections to the battery, especially the one you mentioned.
After cleaning and connecting, use a thin coat of vaseline to protect it.
Reset procedures are in owners manual for security system but generally:
GM PASS LOCK RELEARN- Ignition to "run" position, try to start and let key return to "run" position.
Approx ten minutes security light will go off
Turn key "off" and wait 5 seconds
Repeat 2 more times for a total of 3 relearns.
Turn key off, then start it.
The ABS light indicates a problem in the ABS system, you will need to get it scanned with a chassis scanner, as ABS sets a "C" code.
Tuesday, August 17th, 2010 AT 9:41 AM