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Service bulletins for the 2015 Ram 3500

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

523 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
18-002-15 REV A2019-05-20. Service bulletin. ENGINE; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN. Flash: Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with updated software. During normal diagnostics a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) present: ? P3426 - Cylinder 4 Deactivation Control Performance. ? P3402 - Cylinder 1 Deactivation Control Performance. ? P3442 - Cylinder 6 Deactivation Control Performance. ? P3450 - Cylinder 7 Deactivation Control Performance. ? U0140 - Lost Communication With Body Control Module. (Attempting to clear this DTC will be unsuccessful.) ? P030X - Cylinder X Misfire Detected. ? P0300 - Multiple Cylinder Misfire Detected. Additionally the following enhancements have been implemented: ? Improved Cruise Control Acceleration mode. ? Improved Multi Displacement System operation. 6-Speed Automatic 66RFE transmission (Sales Code DFP). ? Multi Displacement System function improved while in stationary mode. 6-Speed Auto Aisin AS66RC transmission (Sales Code DF3). ? Potential small improvement in fuel economy at higher altitudes. ? Potential improvement in high altitude engine idle RPM stability.
08-028-15 REVA2018-12-03. Service bulletin. ELECTRICAL SYSTEM. RA2 Radio Software Enhancements This bulletin involves updating the radio's software. A customer may experience one or more of the following: ? Radio display screen intermittently may go blank. ? Radio display screen may lock up. ? Back up display may not turn off. ? Audio mutes. ? Not able to change state of heated seats and/or steering wheel during stop event on Stop/Start vehicles. ? Touchscreen confirmation beep may be too loud (Grand Cherokee only). ? U0208-00 - Loss Communication With Heated Seat Control Module (Cherokee only). Improvements: ? Only allow vehicle settings to be changed in run mode. To help ensure settings are properly saved. ? Always gray out text message soft keys for non-supporting devices. ? Voice Recognition (VR) improved accuracy.
56041380A2018-11-26. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Battery Please call Bob Horn at cell (248) 231-3315 prior to replacing any battery. Please identify battery with the last 8 VIN digits along with the 15 digit Medtronic code from the GR-8 tester. If no response in 15 minutes, continue with the repair. Battery needs to be held and not turned in for core charges.
18-041-152018-11-26. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL. Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation a technician may find one of more of the following Diagnostic Trouble Codes (DTCs) set in the PCM memory. ? P2281 - Air Leak Between MAF And Throttle Body. ? P1477 - Intake Air Diverter Valve Position Sensor Circuit Shorted To Ground. ? U1421 - Implausible Ignition Key Off Time Received. ? P026B - Injection Timing Performance. In addition to addressing the above DTCs, the following powertrain system improvements/enhancements are also included in this software release. ? 68RFE Transmission Shift Quality Improvements for low speed First to Neutral and Neutral to First (Garage Shifts). ? Charging system improvements for single alternator applications (Changes the cutout threshold from 600 to 500 RPM). ? Diesel Exhaust Fluid (DEF) system calibration improvement during Stationary Regeneration. ? Cold idle speed stability improvement. ? Charging system improvements for dual alternator applications. ? Torque increase to 865 ft/lbs (D2 vehicles equipped with the Aisin transmission sales code DF2 only). ? Fuel Filter Minder calibration changes. ? wiTECH Fuel Pressure Override and Fuel System Run Up test improvements.
18-055-152018-11-19. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM. MIL Illuminates On Rough Roads This bulletin involves reprogramming the Powertrain Control Module (PCM) with updated software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination while driving on rough roads. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: ? P0300 - Multiple Cylinder Misfire ? P0301 - Cylinder 1 Misfire ? P0302 - Cylinder 2 Misfire ? P0303 - Cylinder 3 Misfire ? P0304 - Cylinder 4 Misfire ? P0305 - Cylinder 5 Misfire ? P0306 - Cylinder 6 Misfire ? P0307 - Cylinder 7 Misfire ? P0308 - Cylinder 8 Misfire
08-007-152018-11-19. Service bulletin. ELECTRICAL SYSTEM. RG3 RG4 RJ3 RJ4 Radio 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: ? Voice Recognition (VR) to set temperature, will indicate wrong setting to rear seat temperature. ? Not possible to set temperature in degree C using the VR (UK vehicles only). ? Teleprompter does not appear when pressing the Voice Recognition (VR) button. ? Voice Recognition (VR) operation cancels while in media mode. ? Radio may display previous cameras 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. ? Voice Recognition (VR) phone button may not work at times. ? Audio muted after AUX device is disconnected. ? Voice Recognition (VR) , ? Listen? to text, will only play 1st 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). ? 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: ? Spanish translation. ? Radio station, scroll feature. ? Drive Mode: Launch control button, text improvements (LA, LD, LX and ZD Only). ? Displays correct media, song titles and tracks. ? Incoming calls, audio enhancements (LA, LD and LX Only). ? Audio for strong AM stations. ? VR performance. ? Settings can only be changed in run mode, not ACC. ? Notify user when messaging features are not supported on certain phones/devices. ? Shows direction and distance for POI when using VR.
18-002-152018-11-19. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM. Flash: Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with updated software. During normal diagnostics a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) present. ? U0140 Lost Communication With Body Control Module. (Attempting to clear this DTC will be unsuccessful.) ? P030X Cylinder X Misfire Detected ? P0300 Multiple Cylinder Misfire Detected Additionally the following enhancements have been implemented. ? Potential small improvement in fuel economy at higher altitudes. ? Potential improvement in high altitude engine idle RPM stability.
08-031-152018-09-24. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT; ELECTRICAL SYSTEM. RA3 RA4 Radio 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: ? Enable High Definition (HD) feature, (RA4 radios located in Canada and Mexico). ? Keyboard improvements, in the Points Of Interest (POI) section. ? 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 cameras 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 1st 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: ? High Definition (HD) radio buffering. ? Spanish translation. ? Radio station, scroll feature. ? Drive Mode: Launch control button, text improvements (LA, LD, LX and ZD Only). ? Making assist calls. ? App functionality and screen displays. ? Displays correct media, song titles and tracks. ? Travel
08-028-152018-09-24. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; STEERING; SEATS. RA2 Radio Software Enhancements This bulletin involves updating the radio's software. A customer may experience one or more of the following: ? Not able to change state of heated seats and/or steering wheel during stop event on Stop/Start vehicles. ? Touchscreen confirmation beep may be too loud (Grand Cherokee only). ? U0208-00 - Loss Communication With Heated Seat Control Module (Cherokee only). Improvements: ? Only allow vehicle settings to be changed in run mode. To help ensure settings are properly saved. ? Always gray out text message soft keys for non-supporting devices. ? Voice Recognition (VR) improved accuracy.
18-013-152018-09-24. Service bulletin. STRUCTURE; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Flash: U0140 Lost Communication With Body Control Module (BCM) This bulletin involves reprogramming the Powertrain Control Module (PCM) with updated (latest available) software. During normal diagnostics a technician may find Diagnostic Trouble Code (DTC) U0140 Lost Communication With Body Control Module. Attempting to clear the DTC will be unsuccessful.
08-028-162018-06-25. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE. RE2 RE6 RB5 RB6 Radio Software Enhancements This bulletin involves updating the radio software and navigation if equipped. A customer may experience one or more of the following conditions: · Radio display screen will lock up and reset intermittently. · Incorrect routing directions to fuel stations when using Travel Link. · Unable to turn on heated seats; icon is greyed out. · Navigation screen goes blank. · Navigation system freezes/locks up. · Vehicles with Mopar special edition radio will update radio?s splash screen. · Navigation icon shows the vehicle going backward when it?s moving forward.
Z5091195A$2018-06-11. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL. RES / RHA / REB radio that supports Bluetooth and Hands-Free For issues with Bluetooth, Hands-Free Calling, and/or Voice Commands, DO NOT replace the radio. Diagnose the Hands-Free Module system (also called the Telematics Module). The Telematics Module (and associated components) is the system responsible for these features. A power cycle may be required for the hands-free module for proper diagnosis.~ Please reference; 8T - Navigation/Telecommunication Diagnosis and Testing (DIAGNOSIS AND TESTING - HANDS FREE PHONE)
18-023-162018-06-11. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Flash: 2.4L Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination or one or more of the following conditions. Upon further investigation the technician may find the following Diagnostic Trouble Codes (DTCs) set in the PCM memory:
18-037-162018-06-11. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: · **P218F - Reductant No Flow Detected. · P242F - Diesel Particulate Filter Restriction - Ash Accumulation.** · P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in). · U110E - Lost Ambient Temperature Message. · P20E8 - (Diesel Exhaust Fluid) Reductant Pressure Too Low. · P2281 - Air Leak Between MAF And Throttle Body. · P1477 - Intake Air Diverter Valve Position Sensor Circuit Shorted To Ground. · U1421 - Implausible Ignition Key Off Time Received. · P026B - Injection Timing Performance. In addition to addressing the above DTCs, the following powertrain system improvements/enhancements are also included in this software release: · **Ambient Air Temperature Improvements. · 68RFE Transmission Overall Shift Quality Improvements.** · SCR Efficiency scan tool test improvement. · Charging system improvements for single alternator applications (Changes the cutout threshold from 600 to 500 RPM). · Diesel Exhaust Fluid (DEF) system calibration improvement during Stationary Regeneration. · Cold idle speed stability improvement. · Charging system improvements for dual alternator applications. · Torque increase to 865 ft/lbs (D2 vehicles equipped with the Aisin transmission sales code DF2 only). · Fuel Filter Minder calibration changes. · wiTECH Fuel Pressure Override and Fuel System Run Up test improvements.
18-036-162018-06-11. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. SUBJECT: Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Engine Control Module (ECM) with the latest available software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo diesel.
171612018-06-11. Service bulletin. ELECTRICAL SYSTEM:IGNITION; EQUIPMENT; ELECTRICAL SYSTEM:IGNITION:SWITCH. You have been identified as either having stock, or have stock in transit to your dealership. Please return suspect stock of part number 04685719AI. See attachments for identifying suspect stock. Please return suspect parts back to your facing depot using Return Code 02, before 11 July, 2016. Return any open orders in process too. Direct all questions via email to mopardmail@fcagroup.com.
306572018-06-11. Service bulletin. ELECTRICAL SYSTEM. R4801865AC Alternator Assy - 220 Amp You have been identified as either having stock, or have stock in transit to your dealership. Please return all stock of part number R4801865AC. Replacement is part number 04801865AE which is in stock and available. Please return suspect parts back to your facing depot using Return Code 02, before 04 April, 2017.
08-079-14 REV. C2018-06-11. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE. RA3 RA4 Radio 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: 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 cameras 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 1st 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: High Definition (HD) radio buffering. Spanish translation. Radio station, scroll feature. Drive Mode: Launch control button, text improvements (LA, LD, LX and ZD Only). Making assist calls. App functionality and screen displays. Displays correct media, song titles and tracks. Travel Link, Points Of Interest (POI), displaying movies and favorites. Incoming calls, audio enhancements (LA, LD and LX Only). Audio for strong AM stations. VR performance. Settings can only be changed in run mode, not ACC.
08-108-142018-06-11. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE. RA2 Radio Software Enhancements This bulletin involves updating the radio's software. A customer may have experience one or more of the following: Not able to change state of heated seats and/or steering wheel during stop event on Stop/Start vehicles. Touchscreen confirmation beep may be too loud (Grand Cherokee only). U0208-00 - Loss Communication With Heated Seat Control Module (Cherokee only).Improvements: Only allow vehicle settings to be changed in run mode. To help insure settings are properly saved. Always gray out text message soft keys for non-supporting devices. Voice Recognition (VR) improved accuracy.
08-109-142018-06-11. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE. RG2 Or RJ2 Radio Software Enhancements This bulletin involves updating the radio's software. A customer may have experience one or more of the following: Not able to change state of heated seats and/or steering wheel during stop event on Stop/Start vehicles. Touchscreen confirmation beep may be too loud. The radio does not allow selection of the Polish language. The radio fan continually runs at high speed. Customer perception may be the radio fan is too loud.Improvements: Only allow vehicle settings to be changed in run mode. To help insure settings are properly saved. Always gray out text message soft keys for non-supporting devices. Voice Recognition (VR) improved accuracy.
18-052-142018-06-11. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Flash: 6.7L Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo diesel.Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (Mil) Illumination For: P2281 - Air Leak Between MAF And Throttle Body. U1421 - Implausible Ignition Key Off Time Received. P026B - Injection Timing Performance.Other Software Improvements: Charging system improvements for dual alternator applications. Torque increase to 865 ft/lbs (D2 vehicles equipped with the Aisin transmission sales code DF2 only) Fuel Filter Minder calibration changes. wiTECH Fuel Pressure Override and Fuel System Run Up test improvements
18-037-16 REV. A2018-06-04. Service bulletin. POWER TRAIN; FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; EXTERIOR LIGHTING; FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: · P218F - Reductant No Flow Detected. · P242F - Diesel Particulate Filter Restriction - Ash Accumulation. P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in). · U110E - Lost Ambient Temperature Message. · P20E8 - (Diesel Exhaust Fluid) Reductant Pressure Too Low. · P2281 - Air Leak Between MAF And Throttle Body. P1477 - Intake Air Diverter Valve Position Sensor Circuit Shorted To Ground. U1421 - Implausible Ignition Key Off Time Received. · P026B - Injection Timing Performance. In addition to addressing the above DTCs, the following powertrain system improvements/enhancements are also included in this software release: · NOx sensor calibration improvements. (Sales Code DG7). Enhanced software for a No crank/No start issue. (U0100 - Lost Communication With ECM/PCM). (Sales Code DG7).** · Ambient Air Temperature (AAT) improvements. · 68RFE Transmission overall shift quality improvements. · SCR Efficiency scan tool test improvement. · Charging system improvements for single alternator applications (Changes the cutout threshold from 600 to 500 RPM). · Diesel Exhaust Fluid (DEF) system calibration improvement during Stationary Regeneration. · Cold idle speed stability improvement. Charging system improvements for dual alternator applications. · Torque increase to 865 ft/lbs (D2 vehicles equipped with the Aisin transmission sales code DF2 only). Fuel Filter Minder calibration changes. · wiTECH Fuel Pressure Override and Fuel System Run Up test improvements.
08-053-162018-06-04. Service bulletin. EQUIPMENT; PARKING BRAKE; ELECTRICAL SYSTEM. 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.** · Faster response time when using the Remote
08-019-17 REV. A2018-06-04. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE. RG3 RG4 RJ3 RJ4 Radio 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:Navigation failed message is displayed (WK and KL with RG3 and RG4). The clock not automatically updating to local time (WK and KL with RG3 and RG4). Poor or no connection to cellular network (WK and KL with RG3 and RG4). HVAC temperature out of sync with radio display (KL with RG3 and RG4). Some Uconnect App remote commands do not execute with the vehicle. Display goes blank/black (WK and KL with RG3 and RG4). Cyrillic keyboard is missing in phone book (WK and KL with RG3 or RG4). Wrong speed limit on NAV speed camera indication (WK and KL with RG3 or RG4). Blind Spot module beep or chime sound may be heard continuously (KL Only). Radio may keep the CAN bus network awake, causing a battery drain. Voice Recognition (VR) to set temperature, will indicate wrong setting to rear seat temperature. Not possible to set temperature in degrees Celsius using the VR (UK vehicles only). Teleprompter does not appear when pressing the VR button. VR operation cancels while in media mode. Radio may display cameras 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 senders 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 1st 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). Speed adjusted volume may not work. AM/FM seek or tuner soft keys may be missing.
68184926A$2018-05-21. Service bulletin. ELECTRICAL SYSTEM. Integrated Center Stack If vehicle is found within 50 mile radius of the Detroit Metro area please hold vehicle and contact:~ Contact one of the following:~ Daniel Acciacca CELL (586) 709-1537~ Michael Savich CELL (248) 214-7270~ Ayed Hadaad CELL (248) 941-8707~ Issue: On a 2015 & 2016MY LA (Challenger), LD(Charger) and LX (300), the Integrated Center Stack (ICS) may experience a lock-up/Inop condition (complete loss of functionality) during any vehicle diagnostic session (reading fault codes, clearing fault codes, reflashing of any module, etc.). If this occurs, do not replace the ICS. The module functionality can be restored if it is reset by disconnecting power to it (by removing fuse, battery disconnect or module connector disconnect).~

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.