what causes cruise control to not disengage when brake pedal is applied
There is a switch that is actuated when you push the brake pedal.
You need to replace your brake light switch that actuate your brake lights AND disengages your cruise control when applying the brakes.
Check your fuses before you start changing you switch. Much easier and cheaper to change a fuse than the brake switch.
ALWAYS LOOK FOR THE SIMPLEST, STUPIDEST DAMN THING. IT'S USUALLY THE PROBLEM.
Brake light switch.
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