Technical Service Bulletin 0819023 — 2023 RAM 4500

Radio Over the air update to R255.45.06 Customers may experience one or more of the following: No sound heard when Assist & SOS Call is established. Balance/Fade does not stay on when setup by one press. Wireless Phone interface freezes after User accepts incoming call when in a conference call. System switches to Wireless after key cycle, profile change, theme change, or theme mode change. After overnight sleep cycle defrost vent and dash vent are cut off due to duplicate front defrost. Surround sound image loads incorrectly when activating with Android Auto?. Radio plays different SXM® station than user selected. After a software update, previously added widgets to Shortcuts show up as "Couldn't add widget". SXM® presets grayed out, non-functional and audio intermittently fades in and out. Switch between the Cargo Camera screen and the AUX camera screen while switching between Night/Day modes, camera image may not be displayed. (Rearview camera functions normally). Deleting songs from Artist & Song Notifications, then Sports announcement displayed and "X" to cancel freezes screen. (Rearview camera functions normally). After a long sleep cycle, the left menu bar showing SXM® station categories (i.e. For You, Music, Sports, News, Presets) does not display all categories. When playing SXM®, after switching to a profile with a different Theme Mode, starting Bus Sleep cycle causes Presets Shown to change from 20 to 15. (Rearview camera functions normally). When call received from another vehicle, the voice of the receiving end is echoed back, the caller's vehicle has no echo issue. No response from Browse hard button when SXM® source is selected. Screen graphics/Theme - Shortcut widgets show up as "Loading", even after full sleep cycle. Android Auto? - Call duration displayed on status bar notification area is different than the actual duration. Widget view and Android Auto? screen are showing correct. Back Camera Icon is grayed out and it's not accessible f