See also:

Battery Replacement
Replace the battery if the REPLACE BATTERY IN REMOTE KEY message displays in the DIC. See “REPLACE BATTERY IN REMOTE KEY” under Key and Lock Messages   for additional information. Notice: ...

ROTATE CONTROL TO OFF POSITION
If the vehicle has the keyless access system, this message displays when the ignition is in ACC/ACCESSORY and the shift lever has just been moved to P (Park). The message displays as a rem ...

Reporting Safety Defects to General Motors
In addition to notifying NHTSA (or Transport Canada) in a situation like this, notify General Motors. Call 1-800-458-8006, or write: Cadillac Customer Assistance Center Cadillac Motor Car Divisio ...