What do you have in your steering wheel? Never looked at one, in the Soul was a plastic blank plate that snapped out. One shown in ebay is exactly like the one in my 2017, top button is Cruise, have to tap that on and will get a SET light on the dash, bottom switch just cancels the cruise, but not the last set speed. Have to be at leat 19 mph, to push that toggle in the center down to set it or at any speed, pulsing it, drops in 1 mph increments. Upward one pulse will set it to the last preset speed like 25 mph, if you had to stop and wanted to set cruise again.
Switch on the left selects trip odometers and fuel miles remaining.
Drove 17 years without cruise, high school, military, college, and first engineering job with a lot of travel. First one was in my 1970 Buick Riviera, that spoiled me for life. Won't even purchase a vehicle without cruise unless somehow I can add it.
Actually in my 30's and 40's cars, beside a choke puller, had a throttle lever. You could pull that out for your speed, but will slow down up a hill, and speed up down. They dropped this in around 1949.
These new vehicles with throttle by wire, have a motor in the TB controlled by a rheostat on the gas pedal that is converted to digital by the ECU, that already know the vehicle speed stored in memory, just a few more bytes in memory and a short program, so all the ingredients are there, just need a switch to switch it over. Crime they leave this switch off.
Back then a cop had to trail and clock you to get a ticket, if you saw a cop in your rear view mirror, and too stupid to slow down, deserved that ticket. Now a hidden camera can do the same thing.