2016 prius 4 no full speed dynamic cruise control

Full range refers to it slowing down to near zero and resuming. It could slow down to 20, for instance, and then resume the preset speed. You still need a minimum speed to engage.
I believe the USB port is for audio, not charging.

 

Like most car USB ports, it's quite slow, designed for audio, not really for charging. [I put an APP on my phone to show the charge rate - the wall charger was 40% faster than plugging it into my PC, my portable battery is 10% slower than the wall charger but has died, and the car was less than ½ the speed of the wall charger - haven't got the exact figures as I deleted the APP.] Get a 12v adaptor.

DRCC - have a read of the Owner's Manual - they explain its use clearly. It is a NORMAL C/C unless you're following someone - then it becomes a DRCC. Again, that's similar to all but fully autonomous vehicles.

I haven't got USA figures, but here, you need to be doing 46km/hr to activate it, you can resume at 40km/hr - but if there is a car in front, you can either activate or resume from 0km/hr.

 

You're gonna at least want to read the little quick start pamphlet thingy, it only takes like 20 minutes or so.

The safety systems can be kind of confusing, and to misunderstand them and their capabilities/limitations could lead to dangerous situations in the future.

 

Better still - I thought later.

Did your salesperson give you any instruction DRCC? I'm not sure if they do the same thing as they do here, TOYOTA insists they contact within the first week to ensure the client is happy - if they do that there, ask him for further instruction and demonstration.

 

That is why my salesman spent 45 minutes talking about (and sometimes demonstrating) the various features of the car before our test drive. Most all of these features are not in his Gen 1 Prius.

 

No and yes, maybe; some Apple phones are real finicky.
Try another phone and/or another cord. Sometimes an "Apple" cord is required.

Cruise control was designed, intended and generally only safe to use when CRUISING at highway speeds in light to moderate traffic.