Step one is to check the fuses. Could have blown a fuse somehow. Has anything else stopped working?
--------------------------------------------------------------------------------2004 Base - TwoTone Neptune - 5 speed There are 10 types of people in life. There are those who understand binary and those who do not.
Check the stop light bulbs in the taillights, and the CHMSL (Center High Mounted Stop Light). I'll bet one of them is burned out.Most of the cruise control circuits I'm familiar with will sense the stop light 'on' voltage to disengage the cruise when you press on the brake pedal.
My 2003 Vibe Base Auto 2-tone Salsa "SalsaWagon" was built in May 2002. I acquired it in Feb 2004/Traded it in on a 2016 Honda HR-V in Feb 2018.