Cascadia cruise not working.

Did you have it hooked up to a Detroit computer. Perhaps the cruise control portion is djsabled but the PTO (high idle) function is enabled.

FWIW, my Volvo Enhanced Cruise (VEC) won't engage if the vehicle speed is above the governed speed, like when I'm coasting down a hill. Maybe they have to tweak your cruise settings.

 

I had a same problem before and it was a break pedal switch. You can check while driving just use your toes to pull break and clutch pedal up and try engaging cruise then. If it works its an easy fix then.....

 

Press the brake pedal lightly, then try again.

{A man is only as good as his word.}

 

Then it may not be getting a reading from the speed sensor. Speedometer and odometer are working though?

 

I'm guessing On Guard is the proximity radar. I have that in my truck. Drives me nuts sometimes, especially when a vehicle is slowing down on an off ramp on a curve and the radar interprets it as the vehicle stopping in front of you and goes into panic mode, doing a hard brake.

Though it is kind of nice to let it do it's thing when you come up on a truck that's doing a 1/4 mph slower and it adjusts itself to keeping the same distance.

 

If the OnGuard system isn't working, it will disable the cruise control completely... is the OnGuard display background red? If so, you'll have to get that thing fixed. The cruise control should work fine after that.