See also:

When To Use 4L (Low) Range
When off-road driving, shift into 4L (Low) for additional traction and control on slippery or difficult terrain, ascending or descending steep hills, and to increase low speed pulling power. This ...

Media Center 730N/430/430N (RHR/RER/RBZ/RHB) CD/DVD/HDD/NAV — If Equipped
NOTE: The sales code is located on the lower right side of the unit’s faceplate. Refer to your Uconnect™ Multimedia RHR, RER, RBZ or RHB user’s manual for detailed operating instructions. ...

Playback of MP3 Files
When a medium containing MP3 data is loaded, the radio checks all files on the medium. If the medium contains a lot of folders or files, the radio will take more time to start playing the MP3 file ...