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Service bulletin 110447

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11029764
Published by NHTSA2026-03-05
Manufacturer's number110447
Manufacturer's date2026-02-23
NHTSA componentENGINE

NHTSA's summary

WATER PUMP

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
CHRYSLER PACIFICA2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
CHRYSLER PACIFICA PLUG-IN HYBRID2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
CHRYSLER VOYAGER2020, 2021, 2022, 2023, 2024, 2025, 2026
DODGE DURANGO2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
JEEP GRAND CHEROKEE2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
JEEP GRAND CHEROKEE L2021, 2022, 2023, 2024, 2025, 2026
RAM PROMASTER2019 to 2026

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20256172025-11-06. Engine
25V7660002025-11-06. ENGINE
24V9260002024-12-12. STRUCTURE:FRAME AND MEMBERS; FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY
20233382023-06-08. Engine
23V4120002023-06-08. ENGINE
23V4110002023-06-08. ENGINE AND ENGINE COOLING
20222172022-04-28. Engine
22V2840002022-04-28. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)
20205442020-11-12. Engine
20V6990002020-11-12. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
66D Combo Rev22026-10-16. Service campaign. Revised Customer Satisfaction Notification 66D – Spark Plugs - Dealer Notification
66D Combo Rev22026-10-16. Service campaign. Revised Customer Satisfaction Notification 66D – Spark Plugs - Dealer Notification
S2609000006 REV.A2026-10-07. Service bulletin. Customer indicates Malfunction Indicator Light (MIL) or Check Engine Light (CEL) coming on.
09-013-26 REV. A2026-10-07. Service bulletin. Engine Runs Rough Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0300-00 - Random/Multiple Cylinder Misfire Detected. ● P0301-00 - Cylinder 1 Misfire. ● P0302-00 - Cylinder 2 Misfire. ● P0303-00 - Cylinder 3 Misfire. ● P0304-00 - Cylinder 4 Misfire. Customers may also comment on the following: ● Engine runs rough. This bulletin involves replacing all four main chamber spark plugs.
09-023-262026-09-30. Service bulletin. Umbrella Valve Seal Missing From Cylinder Head Cover Vehicle may exhibit a MIL-ON. SYMPTOM: Upon inspection the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have set: ● P0300-00 - Random/Multiple Cylinder Misfire Detected. ● P0301-00 - Cylinder 1 Misfire. ● P0302-00 - Cylinder 2 Misfire. ● P0303-00 - Cylinder 3 Misfire. ● P0304-00 - Cylinder 4 Misfire. This bulletin involves inspecting for a missing umbrella valve seal on the underside of the cylinder head cover and, if necessary, replacing the cylinder head cover.
S26090000112026-09-17. Service bulletin. MIL-On and/or Engine Oil Leak
91008982026-09-17. Service bulletin. Engine PNs: MY 24-26 WD/DT (5.7L) Code P00B is being misdiagnosed and incorrect parts are being installed causing over repair. Refer to SOL S2609000006 The IAFM Foam Engine Valley Cover (PN 53013735AB) does not provide sufficient clearance for proper routing of the MDS solenoid jumper harness (PN 05148163AE). As a result, the harness may become compressed by the foam cover. To prevent unnecessary part replacement, the MDS solenoid jumper harness (PN 05148163AE) should be inspected for damage or pinch conditions prior to replacing the following part numbers: Engine PNs: 68409343AA 68409357AA 68450915AA OCV PNs: 53022338AB Phaser PNs: 53022298AA 53022298AB
66D Combo Rev12026-09-03. Warranty extension. CUSTOMER SATISFACTION NOTIFICATION NORTH AMERICA Spark Plugs Reference: 66D The spark plugs insulator on approximately 48,000 of the above vehicles may break due to excessive cylinder pressure. This pressure can cause the spark plug's ceramic insulator to crack, leading to a rough-running engine. If this issue is not resolved promptly, the broken fragments can fall into the cylinder and cause internal engine damage.
1142732026-09-03. Warranty extension. D-26-18 Rev. A Dealer Incentive for the Completion of Customer Satisfaction Notification 66D
1142752026-09-03. Warranty extension. ID-26-38 Rev. A Dealer Incentive for the Completion of Customer Satisfaction Notification 66D