I need to reset the service brake warning lights in my 2000 4wd 5.3 liter Chevy 1500 Silverado. I have changed the front brake lines, Ive got good pedal and no leaks. Autozone said they could not help with resetting brake warning light. Tried to turn key to on and pump accelerater three times. Ive checked all lines, master cylinder, and pads. Everything looks good.