Low speed automatic cancellation

ACC is not functional at vehicle speeds below 18 mph (30 km/h). Once the vehicle speed drops below 18 mph (30 km/h), an audible alarm will sound, the head’s up display will flash and the automatic braking will be released.
See also:
Checking automatic transmission fluid
Refer to your scheduled maintenance information for scheduled
intervals for fluid checks and changes. Your transmission does not
consume fluid. However, the fluid level should be checked if the
...
Interior
Inside the cabin, big, plush seats welcome the driver and passengers. There's
a giant center armrest with storage between the driver and the front passenger
seat, as well as one splitting the seco ...
Vehicle storage
If you plan on storing your vehicle for an extended period of time
(30 days or more), refer to the following maintenance recommendations
to ensure your vehicle stays in good operating condition.
...
