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Service bulletins for the 2018 Ram 4500

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.

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

By type

By component

By trouble code

Bulletins, newest first
S18080001522020-05-26. Service bulletin. ELECTRICAL SYSTEM. CEL (Check Engine Lamp) Illuminates, Recent PCM Replace Or Flash Update Performed, DTC P057B Brake Pedal Position Sensor Circuit Performance
S20080000602020-05-26. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT. Radio Issues With iPhone 11
S20080000592020-05-26. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT. Error Code 20 Message On the Radio Screen
S20190000022020-05-26. Service bulletin. STEERING. Hands On Steering Wheel Message In EVIC
90042462020-05-26. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. MODULE, Anti-Lock Brake System If ordering ECU PN 68347098AB or later to repair a C0020-01 ABS PUMP MOTOR CONTROL - GENERAL ELECTRICAL FAILURE, The HCU Hydraulic Control Unit can be replaced alone for this DTC. For any other DTC's follow published diagnostics.
S15080004802020-05-26. Service bulletin. VEHICLE SPEED CONTROL. Speed Control Operates Intermittently
S15080004802020-05-18. Service bulletin. VEHICLE SPEED CONTROL. Speed Control Operates Intermittently
S15080004802020-04-27. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Speed Control Operates Intermittently
S19180000032020-04-06. Service bulletin. ENGINE. Intermittent Engine Buck, Surge, or Misfire.
S20080000132020-04-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Key Programming, Security Pin Request, Pin Invalid
S17230000012020-04-06. Service bulletin. VISIBILITY. Left Hand Drivers Side Mirror Takes Longer to Defrost Or Clear Than Right Side Passenger
S16230000282020-04-06. Service bulletin. VISIBILITY. Outside Power Fold Rearview Mirror Appears Loose Or Shakes
S20080000102020-04-06. Service bulletin. EQUIPMENT. Apple Carplay Inoperative Or Not Working, Phone Not Pairing, Carplay Lockup Or Freeze.
90040222020-01-21. Service bulletin. SUSPENSION. Air Suspension Components Star Parts Catalog has been updated to show individual service parts for the compressor assembly. This will allow service technicians to repair the root cause without over repairing the system. Replace only the part deemed failed by the diagnostics performed. Individual parts include: - Compressor - Valve block - Individual hoses - Temp sensor - Shield - Air line clips NOTE: in most situations when a new compressor is needed, the compressor as a separate part is the correct repair, and the assembly would not be required.
31-005-192019-12-16. Service bulletin. EQUIPMENT; STRUCTURE. Use of Aftermarket Parts This bulletin involves discussing FCA US LLC position with regard to collision repair industry awareness regarding the use of aftermarket parts.
31-004-192019-12-16. Service bulletin. VISIBILITY. Authentic Mopar® Glass Replacement This bulletin involves discussing FCA US LLC position with regard to collision repair industry awareness regarding the recommended usage of Authentic Mopar® Glass.
18-089-192019-12-16. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
08-016-19 REV. F2019-12-02. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. UAS, UAQ, UCS and UCQ Radio Enhancements This bulletin involves inspecting and if required, updating the radio software level to:22.6 - DS, D2, DP, DD, DF and DJ vehicle with UAS, UCQ and UAQ radio. 22.5 - LA, LD and LX vehicle with UAS and UAQ. 21.9 - All other vehicles and radios. Customers may experience one or more of the following:Audio Distortion (DS, D2, DP, DD, DF and DJ vehicle with UAS, UCQ and UAQ radio). Menu bar at the bottom of the radio display is frozen (LA, LD and LX with UAQ and UAS radios). Can not change the time on the clock (LA, LD and LX with UAS radios). Anti-theft code request message. Backup camera screen is blank. Lines appear across screen. Radio control screen is blank or locked. Radio resets intermittently. Unable to adjust volume. Radio will not switch modes between AM, FM, SAT or Media. In addition, the following enhancements are included in this update:Carplay® connectivity improvements. Improvement to Bluetooth phone pairing. Improved sound quality when using a Bluetooth phone.
08-016-19 REV. E2019-12-02. Service bulletin. EQUIPMENT. UAS, UAQ, UCS and UCQ Radio Enhancements This bulletin involves inspecting and if required, updating the radio software level to:28.3 - WD and WK vehicle with UAQ and UCQ radio. 22.6 - DS, D2, DP, DD, DF and DJ vehicle with UAS, UCQ and UAQ radio. 22.5 - LA, LD and LX vehicle with UAS and UAQ. 21.9 - All other vehicles and radios. Customers may experience one or more of the following:Warning chime will not turn off (WD and WK with UAQ and UCQ radio). Audio Distortion (DS, D2, DP, DD, DF and DJ vehicle with UAS, UCQ and UAQ radio). Menu bar at the bottom of the radio display is frozen (LA, LD and LX with UAQ and UAS radios). Can not change the time on the clock (LA, LD and LX with UAS radios). Anti-theft code request message. Backup camera screen is blank. Lines appear across screen. Radio control screen is blank or locked. Radio resets intermittently. Unable to adjust volume. Radio will not switch modes between AM, FM, SAT or Media. In addition, the following enhancements are included in this update:Bluetooth® improvements (WD and WK with UAQ and UCQ radio). Voice Recognition (VR) improvements (WD and WK with UAQ and UCQ radio). Radio stability improvements (WD and WK with UAQ and UCQ radio). Carplay® connectivity improvements. Improvement to Bluetooth phone pairing. Improved sound quality when using a Bluetooth phone.
08-016-19 REV. D2019-12-02. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. UAS, UAQ, UCS and UCQ Radio Enhancements This bulletin involves inspecting and if required, updating the radio software level to:22.6 - DS, D2, DP, DD, DF and DJ vehicle with UAS, UCQ and UAQ radio. 22.5 - LA, LD and LX vehicle with UAS and UAQ. 21.9 - All other vehicles and radios. Customers may experience one or more of the following:Audio Distortion (DS, D2, DP, DD, DF and DJ vehicle with UAS, UCQ and UAQ radio). Menu bar at the bottom of the radio display is frozen (LA, LD and LX with UAQ and UAS radios). Can not change the time on the clock (LA, LD and LX with UAS radios). Anti-theft code request message. Backup camera screen is blank. Lines appear across screen. Radio control screen is blank or locked. Radio resets intermittently. Unable to adjust volume. Radio will not switch modes between AM, FM, SAT or Media. In addition, the following enhancements are included in this update:Carplay® connectivity improvements. Improvement to Bluetooth® phone pairing. Improved sound quality when using a Bluetooth phone.
90032202019-10-28. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. RADIO [RES] - New and/or Service Exchange For RES radio concerns. Use the wiTECH 2.0 and inspect the radio part number and serial number under the Radio/ECU Details tab. Please verify that the radio part number and/or serial number is not "FFFF". If either field shows "FFFF", please contact Mike Wielgat at 248-576-6696 or Rohan Negandhi at 248-421-9608 If no response in 15 minutes, proceed with repair.
OD554312019-07-15. Service bulletin. EQUIPMENT. Safety Recall V47 / NHTSA 19V-325 Backlite Glass Parts Ordering Information
OD553412019-07-15. Service bulletin. EQUIPMENT; ENGINE. Vehicles Eligible For CSN U07 And V08, V11 or V16 Important Update To U07 Dealer Instructions
Volume 5 Issue 52019-07-15. Service bulletin. EQUIPMENT. Warranty Operations Newsletter ? Volume 5, Issue 5
Volume 5 Issue 42019-07-15. Service bulletin. EQUIPMENT. Warranty Operations Newsletter Volume 5, Issue 4

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