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Service bulletins for the 2023 Dodge HORNET

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.

158 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
S26090000102026-07-08. Service bulletin. ENGINE. Mis-Machined Engine Block
91008522026-07-08. Service bulletin. ENGINE. When long block is received, inspection needs to be performed per SOL S2609000010 before the repair begins. If the block machining is not complete according to information in SOL, a new long block will need to be ordered.
1126392026-07-08. Service bulletin. ENGINE. THROTTLE BODY – NONE
1126402026-07-08. Service bulletin. ENGINE. THROTTLE BODY – NONE
91007232025-11-13. Service bulletin. ENGINE. 1.Identify Customer Concern Check for small traces of coolant near the water pump, especially around the weeper chamber. Confirm if coolant is visibly dripping from the weeper chamber. 2.Root Cause identification The weeper chamber is designed to collect small amounts of coolant (< 3 ml/h) that pass through the dynamic seal. Red traces or shadows around the chamber may appear during initial operation due to seal adaptation or vapor condensation. These traces are not necessarily signs of a leak. Continuous dripping of coolant, however, indicates a malfunction. 3.Service Repair Procedure Lift the vehicle using an elevator. Verify if coolant is actively dripping from the weeper chamber. Run the engine at idle, alternating speed between 2000 4000 rpm for 15 minutes. Observe the weeper chamber during this test: If coolant continues to drip: Replace the water pump (possible permanent damage to the dynamic seal). If dripping stops: No further action is needed; the vehicle can be returned to the customer. 4.Clarify Leak Sources Do not confuse leaks from: The Press-In-Place rubber gasket (between water pump and engine block), or The inlet pipe nipples with leaks from the weeper chamber.
1029342025-02-05. Service bulletin. ENGINE. THROTTLE BODY
01-001-242024-10-14. Service bulletin. ELECTRICAL SYSTEM; ENGINE. "Oil Change Monitor Displaying Prematurely Customers may experience the following: ● The oil change light is illuminated on the Instrument Panel Cluster (IPC) shortly after taking delivery of the vehicle within 6,437 Km (4,000 mi). This bulletin involves resetting the oil life monitor and if necessary, changing the engine oil and filter."
S24080000912024-08-08. Service bulletin. ENGINE. Tonale and Hornet Auxiliary Coolant Pump Locations “A”,”B”, “C"
91002642024-01-16. Service bulletin. ENGINE AND ENGINE COOLING. PSU Oil Pump Assy
91002462023-12-18. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. PUMP, Auxiliary Coolant If a vehicle exhibits a continuous parasitic battery drain traced back to the Aux Coolant pump, prior to replacing part please review the battery replacement/reconnection procedure where it requires the vehicle to be turned on for one minute (Key On Engine Off) then turned off to reset pump operation. Do not replace the Aux pump for this condition without performing this procedure.
924432023-09-25. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:WIRING. Warranty Bulletin D-23-13 Fast Feedback Program - Water Pump, EGR Flange/ Heat Shield, O2 Sensor and Engine Wiring Harness Assembly - 2023 - 2024 Hornet GMET4 (GG) (Rev. A)
924242023-09-25. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:WIRING. FCA Caribbean Warranty Bulletin ID-23-16 Fast Feedback Program - Water Pump, EGR Flange/ Heat Shield, O2 Sensor and Engine Wiring Harness Assembly - 2023 - 2024 Hornet GMET4 (GG) and 2024 Alfa Romeo Tonale GMET4 (GC)
924142023-09-25. Service bulletin. ELECTRICAL SYSTEM:WIRING; ENGINE AND ENGINE COOLING. Warranty Bulletin D-23-13 Fast Feedback Program - Water Pump, EGR Flange/ Heat Shield, O2 Sensor and Engine Wiring Harness Assembly - 2023 - 2024 Hornet GMET4 (GG) and 2024 Alfa Romeo Tonale GMET4 (GC)
S23050000022023-09-25. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Vacuum Pump Runs Continuous During Module Flash Or Is Inoperative After Recent Repair.
S23090000052023-09-25. Service bulletin. ENGINE AND ENGINE COOLING. Squeak, squeal or chirp noise (belt noise) can be heard from engine compartment.
18079232023-08-21. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Engine Misfire P0300, P0301, P0302, P0303, P0304 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: ? P0300 - Random Engine Misfire.8 ? P0301 - Cylinder 1 Misfire. ? P0302 - Cylinder 2 Misfire. ? P0303 - Cylinder 3 Misfire. ? P0304 - Cylinder 4 Misfire. Customers may also experience: ? Poor running/Engine misfire. This bulletin involves replacing the spark plugs.
S23080000662023-08-21. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). Dome Lamp, Ultrasonic Antitilt Module (UAM), Alarm Siren Unit (ASU) Inoperative After a Recent Module Flash
07007232023-07-31. Service bulletin. ENGINE AND ENGINE COOLING. Water Quality When Mixed With Engine Coolant
18048232023-05-30. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK

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