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Service bulletins for the 2026 Jeep Wrangler

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

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
S26090000112026-09-17. Service bulletin. ENGINE. MIL-On and/or Engine Oil Leak
1138352026-08-13. Service bulletin. ENGINE. COVER - CYLINDER HEAD
1132412026-07-18. Service bulletin. ENGINE. SPARK PLUG - NONE
1132402026-07-18. Service bulletin. ENGINE. SPARK PLUG - NONE
1132712026-07-18. Service bulletin. ENGINE. CORE – HEATER
1132702026-07-18. Service bulletin. ENGINE. CORE – HEATER
1131532026-07-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE. THERMOSTAT – NONE.
1131522026-07-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE. THERMOSTAT – NONE.
1126392026-07-08. Service bulletin. ENGINE. THROTTLE BODY – NONE
1126402026-07-08. Service bulletin. ENGINE. THROTTLE BODY – NONE
1128422026-07-02. Service bulletin. ENGINE. BOLT - HEX FLANGE HEAD
1114062026-04-22. Service bulletin. ENGINE. COVER - CYLINDER HEAD
1114052026-04-22. Service bulletin. ENGINE. COVER - CYLINDER HEAD
18-044-262026-03-25. Service bulletin. ENGINE. Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P0111-00 - Intake Air Temperature Sensor 1 Circuit Range Performance Bank 1. (In Active or Stored status) ● P0071-00 - Ambient Air Temperature Sensor Performance. (In Active or Stored status) ● P0072-00 - Ambient Air Temperature Sensor Circuit "A" Low. (In Active or Stored status) ● P0073-00 - Ambient Air Temperature Sensor Circuit "A" High. (In Active or Stored status) ● P0011-00 - Bank 1 Camshaft 1 Position Timing Over Advanced Or. (In Active or Stored status) ● P25E4-00 - B Camshaft Position - Unable To Achieve Locked Position Bank 1. (In Active or Stored status) ● P05BD-00 - Stop-Start Mode Switch Range/Performance. (In Active or Stored status) ● P0116-00 - Engine Coolant Temperature Sensor 1 Performance. (In Active or Stored status) ● P062B-00 - Internal Control Module Fuel Injector Control Performance. (In Active or Stored status) ● P0604-00 - Internal Control Module Random Access Memory Ram Error. (In Active or Stored status) ● P060C-00 - Internal Control Module Main Processor Performance. (In Active or Stored status)** ● P018B-00 - Fuel Pressure Sensor "B" Circuit Range/performance. **(In Active or Stored status)** ● P1CEA-00 - Boost Side EVAP Purge System Performance. **(In Active or Stored status)** ● P06DD-00 - Engine Oil Pressure Control Circuit Performance/Stuck Off. **(In Active or Stored status)** ● P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking. **(In Active or Stored status)** ● P0300-00 - Multiple Cylinder Misfire. **(In Active or Stored status)** Customers may also experience one or more of the following: ● **Oil Level High Warning in the Instrument Panel Cluster (IPC).** ● Fully Autonomous Parking Assist (FAPA) is not deactivated when accelerator pedal is pressed. ● Vehicle is not heating up fast enough at freezi
S26070000032026-02-19. Service bulletin. ENGINE. GMET4 DOHC Water Pump Coolant Leak Inspection
S26070000022026-02-12. Service bulletin. ENGINE. Hemi Water Pump Coolant Leak Inspection
1097272026-01-28. Service bulletin. ENGINE. Water Pump & Chain Case Cover
1097242026-01-28. Service bulletin. ENGINE. Water Pump & Chain Case Cover
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.
S25090000092025-11-05. Service bulletin. ENGINE. Engine Oil Leak
91006702025-10-02. Service bulletin. ENGINE. Data collection required for all 2020-2026MY vehicles with 3.6L PSU engines during any of their first 3 engine oil changes. This data collection is applicable to all vehicle with engines with sales codes: ERG, ERC, EH3 and ERF. To assist with monitoring and quality improvement of the 3.6L engine, every time a vehicle comes for any of the first 3 oil changes, please use wiTECH to record the total engine idle time and the total engine runtime. 1. Prior to perform the oil change connect wiTECH diagnostic tool. 2. Navigate to the topology screen on the action item section. 3. Once the topology screen loads, disconnect wiTECH and continue with oil change.
1056482025-07-23. Service bulletin. ENGINE. MODULE - ENGINE CONTROLLER

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