My 09 tahoe cruise control doesnt work below 14 volts

[Trucker186]

My 09 tahoe's cruise control will not work below 14 volts.It randomly drops below 14 volts then comes back up not sure why. Need some help.

 

[Blue Rock]

Not sure if you are having the same issue I had a few years ago, but I had to replace the cruise control module under the dash on my truck and it fixed the intermittent cruise issue.

 

[kbuskill]

The voltage drops because it is designed to save fuel and extend the life of your battery.

Enter "RVC" or "how to keep steady voltage" in the search bar and it will bring up more info.