Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
You are on the money.
You have two things not working, so lets replace the brake light switch, ensure it is adjusted correctly.
Check brake lights, if now working, roadtest cruise control operation.
I'll get the switch replacement procedure for you shortly.
I don't have access to the Chevrolet recalls.
Ok, no worries.
I still think it is related to the brake pedal sensor or wiring as input to the PCM.
Here is some more info.
Do you need any further help?
I hope my advice has been of assistance to you.