Jeep Grand Cherokee SRT 2019 Owner's Manual page 266

Voice
After pressing the "Voice" button on the touch-
screen, the following settings will be available:
Setting Name
Voice Response Length
Show Command List
Clock
After pressing the "Clock" button on the touch-
screen, the following settings will be available:
Setting Name
Sync Time With GPS
Set Time Hours
NOTE:
The "Set Time Hours" feature will allow you to adjust the hours. The "Sync time with GPS" button on the touchscreen must be unchecked.
Set Time Minutes
NOTE:
The "Set Time Minutes" feature will allow you to adjust the minutes. The "Sync time with GPS" button on the touchscreen must be unchecked.
Time Format
Show Time in Status Bar — If Equipped
Brief
Always
On
+
+
12hrs
On
Selectable Options
Detailed
With Help
Selectable Options
Never
Off
-
-
24hrs
Off
265