Depending on the length of time the power was interrupted, your system may require GPS initialization.

If initialization is not necessary, the system proceeds directly to the Startup Confirmation screen.
If the system fails to locate a sufficient number of satellites to locate your position within 10 minutes, the following screen is displayed.

If you are experiencing GPS reception problems:
Immobilizer-Keyless Control Unit Replacement
NOTE: SRS components are located in the area. Review the
SRS component locations, and
precautions and procedures before doing repairs or
servicing.
Remove the steering column ...
Drive Belt Auto-Tensioner Pulley Replacement
Remove the auto-tensioner.
Remove the tensioner pulley.
Install the tensioner pulley in the reverse order of removal.
Install the auto-tensioner.
...
Grab Handle Removal/Installation
Special Tools Required
KTC Trim Tool Set SOJATP2014
*Available through the Acura Tool and Equipment Program; call
888-424-6857
NOTE: Use the appropriate tool from the KTC trim tool set ...