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Service bulletins for the 2022 Jeep Grand Wagoneer

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.

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

By type

By component

By trouble code

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
18043222022-09-26. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software.The PCM software update is being released as a generic release to support PCM replacement only in service.
S22240000042022-09-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES; UNKNOWN OR OTHER. Cold Air blowing incorrectly during Floor Vent Settings
S22080000692022-09-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); UNKNOWN OR OTHER. PCM Ground G929A Is Not Fully Tightened. Vehicle Does Not Start
90044992022-09-26. Service bulletin. POWER TRAIN; STRUCTURE. VALVE BODY & CONTROL UNIT, Transmission This valve body is currently unavailable from Mopar. Order the transmission assembly.
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
757802022-05-31. Service bulletin. POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT. Warranty Bulletin D-21-08 Fast Feedback Program - Transfer Case, Prop Shaft and Front & Rear Axle Components - 2022 Wagoneer and Grand Wagoneer WS
21004222022-05-31. Service bulletin. POWER TRAIN; EXTERIOR LIGHTING. Transmission Shifts Rough This bulletin involves performing a transmission quick learn. Technicans may experience one or more of the following:The vehicle shifts poorly. Harsh shift during acceleration. Bucks when going into gear. There will not be a Malfunction Indicator Lamp (MIL) and no Diagnostic Trouble Codes (DTCs) will be set for this symptom/condition.
18043222022-05-31. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); EQUIPMENT. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software.The PCM software update is being released as a generic release to support PCM replacement only in service.
18044222022-05-31. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software.The PCM software update is being released as a generic release to support PCM replacement only in service.
90044992022-05-31. Service bulletin. POWER TRAIN; STRUCTURE. VALVE BODY & CONTROL UNIT, Transmission This valve body is currently unavailable from Mopar. Order the transmission assembly.
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
S21210000192021-12-13. Service bulletin. POWER TRAIN; UNKNOWN OR OTHER. Binding/Growling From Front Axle On Tight Turns, and/or Service 4WD Message.

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