See also:

Clearing the programmed information
Individual buttons cannot be cleared. However, to clear all programming, press and hold the two outside buttons and release when the indicator light begins to flash (approximately 20 seconds). ...

Safety
At this time, the Sentra has not been crash tested by the Insurance Institute for Highway Safety. Standard safety features include antilock brakes with electronic brake-force distribution, active ...

Sunglasses holder (if so equipped)
To open the sunglasses holder, push and release. WARNING: - Keep the sunglasses holder closed while driving to prevent an accident. CAUTION: - Do not use for anything other than sunglasses. ...