2001 Chevy Silverado brake lights and cruise control

the brake lights and cruise control are on a switch on the brake pedal under the dash. sounds like the switch is out of adjustment. the ebrake light is also a switch on the linkage but it is a little harder to access but nothing is impossible. good luck

Check fuses B/U lamps 25amp and the BTSI fuse 10amp in the underhood junction block

Check for power at the brake switch light green and black wire if so close the switch and check for power at the light green and white wire-no power here replace the brake switch-power at the light green and white test the shift lock control solenoid