how do i set cruise control in my 2013 kenworth t660

Rocker switches to the right of the steering column. Switch the first one to on and then push the other one to set.

 

If you have an operations manual for the tractor, you might want to look through it. Good luck.

 

What is the button on the end of the stalk on the left?

 

If its like my pete it should be the marker light flash.

 

I think it is too. Going to get someone to watch. This high tech thing has no controls on the steering wheel.

 

looking through the steering wheel on the right, the first switch is the fan manual control. the second one is the cruise on off switch, the next one is set/resume. set up, resume down.
button on hte end of the blinker stalk is to flash the marker lights. the second portion of the stalk between the button and the wiper controls is the windshield washer control. push it towards the steering column and the washer pump will spray the windshield and cycle the wipers.

 

You have it. Figured through trial and error. Cruise is like an old Freightliner being on the dash. It has adaptive cruise, which is almost as bad as an International. Tops a hill and throttles back. You lose 2 mph every time. Bet it makes the guy behind me angry. Not my favorite truck. Pedal is terrible. Slow response when trying to back or go forward gently. Twitchy steering. Impossible to put on seatbelt for big guys. Very disappointing truck. I used to love KW.