Navigation Screen Is Darker Than Normal Or Takes Time To Brighten When It Is Cold (Navigation System)

Diagnostic Procedure

1. See LCD Unit Limitations - Refer to: How To Troubleshoot The Navigation System (Without Auto Idle Stop System) (2015-17)  or How To Troubleshoot The Navigation System (With Auto Idle Stop System) (2015-17)  or How to Troubleshoot the Navigation System (2018-19) 

Also Check for

Compare to a known-good vehicle