Technical Service Bulletin 08-053-16 — 2015 RAM 5500

Flash: RA3/RA4 Radio Software Enhancements This bulletin involves inspecting and, if required, updating the radio software. A small number of customers may experience one or more of the following: · **Poor or no connection to cellular network (U.S. market only). · HVAC temperature out of sync with radio display (KL vehicles).** · Intermittently blind spot chime will not turn off (KL vehicles only). · Enable High Definition (HD) feature (RA4 radios located in Canada and Mexico). · Low battery condition due to the radio remaining powered up after the ignition has been turned off (U.S Markets Only). · The Radio may switch from SiriusXM to an AM station by itself. · Uconnect registration always present, can not remove Uconnect account. · Teleprompter does not appear when pressing the Voice Recognition (VR) button. · VR operation cancels while in media mode. · Radio may display previous image before displaying the current image. · Navigation lost vehicle position during route calculation. · Navigation displays are missing after vehicle heading changes. · Navigation giving incorrect guidance to exit the highway. · FM audio may switch to AM after ignition cycle. · Text messages appear as sender?s phone number not their name. VR phone button may not work at times. · Audio muted after AUX device is disconnected. · VR, ? Listen? to text will only play first message. · Drive Mode: Eco, sport or normal setting may not be saved after key cycle (LA, LD, LX and ZD Only). · Drive Mode: Shift light On/Off, out of sync (LA, LD, LX and ZD Only). · SirusXM station information does not update. · Speed adjusted volume, may not work. · AM or FM seek or tuner soft keys may be missing. · Display screen show ambient temperature as ?- - ? not normal values. Improvements: · **User can pair iPhone with Uconnect via Bluetooth and talk to Siri through Uconnect. · Ability to press VR button for more than one second.**