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Service bulletins for the 2022 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.

858 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
S21090000042022-09-26. Service bulletin. ENGINE AND ENGINE COOLING. Issue involves overheating, running hot, coolant leaks and related symptoms after a Mopar replacement engine has been installed in the vehicle.
S228A000010RevA2022-09-26. Service bulletin. SERVICE BRAKES; ENGINE AND ENGINE COOLING. REV. A - Oil Pressure And Or Coolant Temp Readouts Are Not Shown In The Off Road Application
S228A0000102022-09-26. Service bulletin. SERVICE BRAKES; ENGINE AND ENGINE COOLING. Oil Pressure And Or Coolant Temp Readouts Are Not Shown In The Off Road Application
S1809000007RevC2022-09-26. Service bulletin. ENGINE AND ENGINE COOLING. Customer Complaint May Include Engine Oil Leak Or Consumption
S22080000742022-09-26. Service bulletin. UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. Vehicle Has Code B154F-00 Loss Crankshaft Pulse Signal
S22090000022022-09-26. Service bulletin. UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL. Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. When performing diagnosis, an internal engine concern may be suspected.
90044872022-09-26. Service bulletin. ENGINE AND ENGINE COOLING; AIR BAGS; STRUCTURE; POWER TRAIN. Transmission Oil Pan and Gasket Assembly For Transmission oil leaks, need to identify exactly where the leak is coming from, please check the transmission case at the Trans Oil Heater (TOH) connection on the Grand Cherokee's. Also check the Trans Valve Body at the TCM harness connection. A black light can be used to identify trans fluid vs. other fluids. Contact FCA Redacted Content prior to replacing these components. If no response in 15 minutes, proceed with repair. Please email pictures of leak locations to FCA Redacted Content
08-093-222022-06-27. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE. Flash: Hybrid Control Processor (HCP) Updates This bulletin involves updating the HCP with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following Diagnostic trouble Codes (DTCs) have been set: P1C64 - Hybrid Perf - Engine Speed Below Target During Autostart. U0402 - Implausible Data Received From TCM. The customer may also describe one or more of the following: During a Engine Stop/Start (ESS) event, the autostart fails and the AutoParkengages. Transmission is in Limp Mode.
S19250000082022-06-27. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P208B ? Reductant Pump 1 Control Performance, and/or P20E8 ? Reductant Pressure Too Low, Set.
S22180000092022-06-27. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. Malfunction Indicator Lamp (MIL) Illuminated, Remote Start Disabled, Diagnostic Trouble Code (DTC) P2183 ? Engine Coolant Temperature Sensor 2 Circuit Performance set.
90044842022-06-27. Service bulletin. ENGINE AND ENGINE COOLING. Motor Generator Unit Engineering is looking to avoid unnecessary part replacements for Motor Generator Unit (MGU) underhood whining noise and P1C64 faults. When replacing the MGU for a bearing noise, connect the scan tool to the vehicle and create a scan report to include with the claim prior to replacement of the MGU. See SOL case S2208000009 for added details. Please check Service Library for available TSBs for your concern. Follow current Service Procedures for each complaint, but call Engineering before removing MGU to gather further information. Contacts: FCA Redacted Content If no response in 15 minutes, proceed with repair.
S18090000072022-05-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. Customer Complaint May Include Engine Oil Leak Or Consumption
09003222022-05-31. Service bulletin. EQUIPMENT; FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. Yellow Warning Labels on the 3.0L Diesel Engines Cylinder Head Covers This bulletin outlines the correct procedure for all the repairs that involve: Fuel Injector(s). Cylinder head(s). Cylinder head cover(s). The engine may have a yellow warning label applied to the plastic cylinder head cover to alert the technician special procedures required for Injector Removal/Install. Failure to follow the procedure can result in excessive engine soot. If specific yellow warning labelsFig. 1are applied on engine cylinder head cover(s), follow the procedures reported in this bulletin.During the following repairs:Fuel injector(s) replacement, removal and installation. Cylinder head replacement Cylinder head cover replacement.
S22090000022022-05-31. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE. Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. When performing diagnosis, an internal engine concern may be suspected.
90044872022-05-31. Service bulletin. ENGINE AND ENGINE COOLING; STRUCTURE; POWER TRAIN; AIR BAGS. Transmission Oil Pan and Gasket Assembly For Transmission oil leaks, need to identify exactly where the leak is coming from, please check the transmission case at the Trans Oil Heater (TOH) connection on the Grand Cherokee's. Also check the Trans Valve Body at the TCM harness connection. A black light can be used to identify trans fluid vs. other fluids. Contact FCA Redacted Content prior to replacing these components. If no response in 15 minutes, proceed with repair. Please email pictures of leak locations to FCA Redacted Content
90044442021-12-13. Service bulletin. ENGINE AND ENGINE COOLING. SPRING, Valve For conern of misfire or misfire related DTCs and diagnosis leads to a broken valve spring, please replace all valve springs and contact FCA Redacted Content to FasTrak all replaced parts to QEC for further analysis. If no response in 15 minutes, proceed with repair.

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