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Service bulletins for the 2023 Ram 1500

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.

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

By type

By component

By trouble code

By topic

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
1032372025-03-04. Service bulletin. ENGINE. RADIATOR - ENGINE COOLING
1032382025-03-04. Service bulletin. ENGINE. RADIATOR - AUXILIARY
S25090000012025-02-22. Service bulletin. ENGINE. Engine Rattle Noise
09-003-252025-02-20. Service bulletin. ENGINE. "Oil Leaking From Oil Filter Area Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P06DD - Engine Oil Pressure Control Circuit Stuck Off. Customers may comment on the following: ● Oil found on the ground beneath the vehicle. "
91004982025-02-12. Service bulletin. ENGINE. "3.6L PSU Long Block Misfire DTC codes and/or rough idle and/or valvetrain noise. These conditions may be related to worn intake camshaft high lift lobe(s), and intake rocker arm(s) high lift slider. High mileage failure (10,000-60,000 miles). 1. Remove the valve cover(s) per the released service procedures. The use of a stethoscope or DTC specific cylinder misfire codes can help to locate the condition to the left or right bank. 2. Once it has been visually confirmed that there is wear on the high lift intake lobe(s) & rocker arm(s) slider, there is a special service kit for this type of repair which should be used, instead of replacing the complete engine/long block. This kit contains the parts required for the repair (intake cam, rocker arms, sealer and gaskets)."
09-020-242024-10-08. Service bulletin. ENGINE. "Loss of Power in Reverse Customers may comment on one or more of the following: ● During engine cold start, the vehicle exhibits low torque when shifted into reverse gear. ● Loss of power in reverse gear. This bulletin provides information regarding the loss of engine torque when performing a cold start and immediately shifting into gear"
07-007-242024-08-20. Service bulletin. ENGINE. "Coolant Contamination / Coolant System Flush Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P26A3 - Engine Coolant Bypass Valve A Range-Performance. This bulletin involves flushing the cooling system and replacing the Three-way coolant valve."
S24090000032024-07-24. Service bulletin. ENGINE. Engine Oil Leak
09-001-24 REV. C2024-07-17. Service bulletin. ENGINE. "Cold Engine Ticking Noise The customer may describe a ticking noise from the exhaust manifold location(s) when cold."
S1408000384 REV.F2024-07-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE. "Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On "
09-015-242024-07-02. Service bulletin. ENGINE. "Engine Ticking Noise Customers may experience the following: ● Engine makes an abnormal ticking noise. There may be Diagnostic Trouble Codes (DTCs) present. "
S2408000047 REV.A2024-06-25. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Electric Start Stop (ESS) Does Not Function After a Recent Service Repair
S2307000002 REV.B2024-06-11. Service bulletin. ENGINE. Suspected Engine Coolant Leak
07-005-242024-06-07. Service bulletin. ENGINE. "Broken Internal Coolant Valve Gear **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** ● P26A3 - Engine Coolant Bypass Valve A Range-Performance. ● P26A6 - Engine Coolant Bypass Valve Position Sensor Circuit Low. ● P2681 - Engine Coolant Bypass Valve Control Circuit Open. This bulletin involves replacing the 3-way coolant valve."
S2111000001 REV.B2024-06-05. Service bulletin. ENGINE. Customer complains of a brief metallic ticking/rattling/ringing noise after a cold start-up. It can be heard while standing outside the vehicle, resonating from the front wheel well areas. If the noise is present, it is normally heard at idle and the frequency of the noise will follow engine speed.
9100338REV12024-06-04. Service bulletin. ENGINE. "GENERATOR Engine Prior to alternator/generator removal: 1. Inspect & check all electrical connections to the alternator a. 2-way connector containing field control circuit & alternator sense voltage circuit. b. Unplug & plug-in the 2-way connector for field & sense circuit. Verify the connection is tight & check for any bent pins in alternator connector or damage to female terminals in connector. c. Check Alternator B+ Stud connection to be sure nut is securing positive cable terminal properly (i.e. nut is clamping terminal & connection is tight). d. Check fuse between the alternator B+ stud & PDC terminal to make sure it is not blown. e. Be sure to follow service manual sections on ALTERNATOR CONTROL CIRCUIT DIAGNOSTIC & ALTERNATOR SENSE CIRCUIT DIAGNOSTIC looking for any opens & shorts (to ground or battery voltage). 2. Check/verify all grounds in the charging system circuit a. Check tightness of mounting bolts securing alternator to engine block. Alternator is a case ground component. b. Check main ground from engine to chassis; connection must be tight. c. Check battery ground cable connections are tight. d. Potentially, loosen alternator mounting bolts, without removing alternator, and re-tighten to torque specifications in service manual. e. After all steps above are complete, re-start engine & check charging system operation. 3. Verify that the Smart Charging System is not the reason for alternator low voltage & current output (Amps). a. Alternator charging can be suspended during engine idle operation because of the Smart Charge strategy. b. Refer to service manual section ""System Operation - Smart Charging System"". c. Refer to Star Case S2008000031 Rev A for low charging voltage & Smart Charge Mode Voltage Range diagram & mode descriptions. d. The alternator has no internal regulator; thus, has no smart circuitry. All alternator control signals come from ECM. 4. If alternator is faulty, remove alternator & mounting bolts. Return alternator with bolts for analysis at QEC."
983542024-05-31. Other. ENGINE. Valve - EGR
91003372024-05-17. Service bulletin. ENGINE. "PUMP WATER For 2016-2024MY 3.6L Pentastar Upgrade with suspected coolant leak. PRIOR TO PERFORMING ANY WATER PUMP REPLACEMENT, PROCEED WITH INSPECTION INSTRUCTIONS FROM THE LATEST VERSION OF STAR ONLINE PUBLICATION S2307000002. Please submit pictures of the leak area thru the DIDI process outlined in the STAR Online document. NOTE: Some coolant residue may be found at the water pump weep hole plug area which may be normal, but coolant should not be dripping from this location. If unsure about, use the Pressurized Coolant System Inspection process as found in the Dealer Connect Cooling Diagnosis and Testing Procedures."
Reference83A2024-03-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Emission Recall 83A Sales Code Alignment
91002642024-01-16. Service bulletin. ENGINE AND ENGINE COOLING. PSU Oil Pump Assy
09023232024-01-16. Service bulletin. ENGINE AND ENGINE COOLING. Throttle Blade Icing Service Fix Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? P2072 - Electronic Throttle Control System - Ice Blockage. ? P2110 - Electronic Throttle Control - Forced Limited RPM. ? P2118 - Electronic Throttle Control Motor Current Performance - Bank 1. The customer may also comment on the following: ? The vehicle may not start (below freezing conditions - typically -7 °C (-20 °F)) This bulletin involves removing the PCV valve and hose to dry out, drying out the throttle body and installing an updated make-up air hose, air cleaner lid and changing the oil.
08237232024-01-16. Service bulletin. WHEELS; AIR BAGS; BACK OVER PREVENTION; ENGINE AND ENGINE COOLING; STRUCTURE; ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Transfer Case Shift Motor Wire Harness Connector Not Secured Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? U0418-00 - Implausible Data Received From Brake System Control Module. ? C1444-98 - T-Case Motor Overuse-Component or System Over Temperature. ? C00A8-13 - 4WD/AWD Transfer Case Unit Actuator Position Sensor B-Circuit Open. ? C00A7-13 - 4WD/AWD Transfer Case Unit Actuator Position Sensor A-Circuit Open. ? C149E-64 - Transfer Case Motor Position Sensor-Signal Plausibility Failure. ? C1423-64 - Transfer Case Internal Performance-Signal Plausibility Failure. ? C1406-13 - Transfer Case Brake Control-Circuit Open. ? C1477-4B - Transfer Case Clutch-Over Temperature. ? C140A-13 - Transfer Case Motor Control-Circuit Open. ? U041E-00 - Invalid Data Received From All Wheel Drive Control Module. ? U0422-00 - Implausible Data Received From Body Control Module. ? U0418-00 - Implausible Data Received From Brake System Control Module 1. ? U041E-00 - Invalid Data Received Form All Wheel Drive Control Module. ? U0403-00 - Implausible Data Received From T-Case. The customer may also comment on the following: ? 4WD Service light displayed in the Instrument Panel Cluster (IPC). This bulletin involves performing a push?pull?push test on the transfer case shift motor wire harness connector.
S23080001502024-01-16. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:IGNITION. No Start, No Crank
91002792024-01-16. Service bulletin. ENGINE AND ENGINE COOLING. COOLER Engine Oil Please be aware that the oil cooler seal is serviceable as a standalone part and should be considered for replacement as a remedy for fluid leak.
91002652024-01-16. Service bulletin. ENGINE AND ENGINE COOLING. Hydraulic tensioner Before replacing any Front End Accessory Drive components, please check Accessory Drive belt routing as per engine sales code. Customer complaints may include a noise coming from under de hood described as a squeal, screech, squeak, chirp or "belt related" noise and/or noisy tensioner/pulley. Please check Service Library for any STAR Online publications that may apply. Note: If it is found that the pulleys and/or tensioners are to blame for the noise please use an stethoscope or similar tool to determine the origin of the noise and include it in the narrative.

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