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Service bulletins for the 2015 Jeep Cherokee

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.

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

About P0456 on the 2015 Jeep Cherokee: what the code means, and the bulletins and recalls about the same components.

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By component

By trouble code

Only bulletins with trouble code: P0456 are shown. Show all

Bulletins, newest first
18048232023-05-30. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
1800416REVA2022-12-19. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; ENGINE AND ENGINE COOLING. Flash: 2.4L Powertrain Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs: 2015 KL Only · **P0335 - Crankshaft Position Sensor Circuit.** · P0456 - EVAP System Small Leak. · P0300 - Multiple Cylinder Misfire. · P0301 - Cylinder 1 Misfire. · P0302 - Cylinder 2 Misfire. · P0303 - Cylinder 3 Misfire. · P0304 - Cylinder 4 Misfire. · P2610 - PCM Internal Engine Off Timer Performance. · P1607 - PCM Internal Shutdown Timer Rationality. · U0402 - Implausible Data Received From TCM (ED6). · P0116 - Engine Coolant Temperature Sensor 1 Performance. · P050D - Cold Start Rough Idle. · P2172 - High Airflow/Vacuum Leak Detected. · P219A - Air-Fuel Ratio Cylinder Imbalance Bank 1 has been set in the PCM. 2014 KL Only · P2172 - High Airflow/Vacuum Leak Detected. · P219A - Air-Fuel Ratio Cylinder Imbalance Bank 1 has been set in the PCM. · P106A - Cylinder 3 Oil Supply Solenoid Valve Switch Off Time Out Of Range. · P2251 - O2 Sensor 1/1 Negative Current Control Circuit Open. · P0031 - O2 Sensor 1/1 Heater Circuit Low. In addition, some customers may experience one or more of the following conditions: · Cold Engine Startup Flare and Idle Surge (ED6). · Intermittent elevated engine RPM at start up. · Less than desired gear engagement in lower ambient temperatures. · Less than desired idle performance.
18-035-162022-10-24. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM; POWER TRAIN; ENGINE AND ENGINE COOLING; EXTERIOR LIGHTING. Flash: Powertrain Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, the technician may find the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: · **P1D83 - Implausible Engine Oil Temperature Signal Received.** · P0456 - EVAP System Small Leak. · P0335 - Crankshaft Position Sensor Circuit. · U0402 - Implausible Data Received From TCM - (Transmission Control Module).** · B10EA - Blower Motor Control Circuit High. · B10E9 - Blower Motor Control Circuit Low. · P0441 - EVAP Purge System Performance. · P0116 - Engine Coolant Temperature Sensor Performance. · P2067 - Fuel Level Sensor 2 Circuit Low (International Only). In addition the customer may notice one of the following conditions: · **A push sensation when the transmission is downshifting from eighth to seventh gear.** · Vehicle shudder at stop/start with A/C on.
18089192022-09-15. Service bulletin. ENGINE AND ENGINE COOLING. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
18-004-16 REV. A2020-10-26. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION. Flash: 2.4L Powertrain Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs: 2015 KL Only · **P0335 - Crankshaft Position Sensor Circuit.** · P0456 - EVAP System Small Leak. · P0300 - Multiple Cylinder Misfire. · P0301 - Cylinder 1 Misfire. · P0302 - Cylinder 2 Misfire. · P0303 - Cylinder 3 Misfire. · P0304 - Cylinder 4 Misfire. · P2610 - PCM Internal Engine Off Timer Performance. · P1607 - PCM Internal Shutdown Timer Rationality. · U0402 - Implausible Data Received From TCM (ED6). · P0116 - Engine Coolant Temperature Sensor 1 Performance. · P050D - Cold Start Rough Idle. · P2172 - High Airflow/Vacuum Leak Detected. · P219A - Air-Fuel Ratio Cylinder Imbalance Bank 1 has been set in the PCM. 2014 KL Only · P2172 - High Airflow/Vacuum Leak Detected. · P219A - Air-Fuel Ratio Cylinder Imbalance Bank 1 has been set in the PCM. · P106A - Cylinder 3 Oil Supply Solenoid Valve Switch Off Time Out Of Range. · P2251 - O2 Sensor 1/1 Negative Current Control Circuit Open. · P0031 - O2 Sensor 1/1 Heater Circuit Low. In addition, some customers may experience one or more of the following conditions: · Cold Engine Startup Flare and Idle Surge (ED6). · Intermittent elevated engine RPM at start up. · Less than desired gear engagement in lower ambient temperatures. · Less than desired idle performance.
18-089-192019-12-16. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
18-005-15 REV F2019-05-20. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Flash: 2.4L Powertrain Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): 2015 KL Only ? P0456 - EVAP System Small Leak. ? P0300 - Multiple Cylinder Misfire. ? P0301 - Cylinder 1 Misfire. ? P0302 - Cylinder 2 Misfire. ? P0303 - Cylinder 3 Misfire. ? P0304 - Cylinder 4 Misfire. ? P2610 - PCM Internal Engine Off Timer Performance. ? P1607 - PCM Internal Shutdown Timer Rationality. ? U0402 - Implausible Data Received From TCM (ED6). ? P0116 - Engine Coolant Temperature Sensor 1 Performance. ? P050D - Cold Start Rough Idle. ? P2172 - High Airflow/Vacuum Leak Detected. ? P219A - Air-Fuel Ratio Cylinder Imbalance Bank 1 has been set in the PCM. 2014 KL Only ? P2172 - High Airflow/Vacuum Leak Detected. ? P219A - Air-Fuel Ratio Cylinder Imbalance Bank 1 has been set in the PCM. ? P106A - Cylinder 3 Oil Supply Solenoid Valve Switch Off Time Out Of Range. ? P2251 - O2 Sensor 1/1 Negative Current Control Circuit Open. ? P0031 - O2 Sensor 1/1 Heater Circuit Low. In addition, some customers may experience one or more of the following conditions: ? Cold Engine Startup Flare and Idle Surge (ED6). ? Intermittent elevated engine RPM at start up. ? Less than desired gear engagement in lower ambient temperatures. ? Less than desired idle performance. These conditions apply to 2015 model year vehicles only.
18-007-15 REV C2019-05-20. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Flash: Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, the technician may find the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: ? B10EA - Blower Motor Control Circuit High. ? B10E9 - Blower Motor Control Circuit Low. ? P0456 - EVAP System Small Leak. ? P0441 - EVAP Purge System Performance. ? P0116 - Engine Coolant Temperature Sensor Performance. ? U0402 - Implausible Data Received From TCM. ? P2067 - Fuel Level Sensor 2 Circuit Low (International Only). In addition the customer may notice the following condition: ? Vehicle shudder at stop/start with A/C on.
18-004-16 REV. A2018-06-18. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); EQUIPMENT; ENGINE. Flash: 2.4L Powertrain Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs: 2015 KL Only · **P0335 - Crankshaft Position Sensor Circuit.** · P0456 - EVAP System Small Leak. · P0300 - Multiple Cylinder Misfire. · P0301 - Cylinder 1 Misfire. · P0302 - Cylinder 2 Misfire. · P0303 - Cylinder 3 Misfire. · P0304 - Cylinder 4 Misfire. · P2610 - PCM Internal Engine Off Timer Performance. · P1607 - PCM Internal Shutdown Timer Rationality. · U0402 - Implausible Data Received From TCM (ED6). · P0116 - Engine Coolant Temperature Sensor 1 Performance. · P050D - Cold Start Rough Idle. · P2172 - High Airflow/Vacuum Leak Detected. · P219A - Air-Fuel Ratio Cylinder Imbalance Bank 1 has been set in the PCM. 2014 KL Only · P2172 - High Airflow/Vacuum Leak Detected. · P219A - Air-Fuel Ratio Cylinder Imbalance Bank 1 has been set in the PCM. · P106A - Cylinder 3 Oil Supply Solenoid Valve Switch Off Time Out Of Range. · P2251 - O2 Sensor 1/1 Negative Current Control Circuit Open. · P0031 - O2 Sensor 1/1 Heater Circuit Low. In addition, some customers may experience one or more of the following conditions: · Cold Engine Startup Flare and Idle Surge (ED6). · Intermittent elevated engine RPM at start up. · Less than desired gear engagement in lower ambient temperatures. · Less than desired idle performance.
18-035-162018-06-11. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN; ELECTRICAL SYSTEM. Flash: Powertrain Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, the technician may find the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: · **P1D83 - Implausible Engine Oil Temperature Signal Received.** · P0456 - EVAP System Small Leak. · P0335 - Crankshaft Position Sensor Circuit. · U0402 - Implausible Data Received From TCM - (Transmission Control Module).** · B10EA - Blower Motor Control Circuit High. · B10E9 - Blower Motor Control Circuit Low. · P0441 - EVAP Purge System Performance. · P0116 - Engine Coolant Temperature Sensor Performance. · P2067 - Fuel Level Sensor 2 Circuit Low (International Only). In addition the customer may notice one of the following conditions: · **A push sensation when the transmission is downshifting from eighth to seventh gear.** · Vehicle shudder at stop/start with A/C on.
18-085-172017-11-03. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Flash: Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, the technician may find the following DTCs set in the PCM memory:P1D83 - Implausible Engine Oil Temperature Signal Received (Software has been updated to better address this DTC). U1504 - Implausible Message Data Length Received From Steering Angle Sensor. U1424 - Implausible Engine Torque Signal Received. P0456 - EVAP System Small Leak. P0335 - Crankshaft Position Sensor Circuit. U0402 - Implausible Data Received From TCM - (Transmission Control Module). B10EA - Blower Motor Control Circuit High. B10E9 - Blower Motor Control Circuit Low. P0441 - EVAP Purge System Performance. P0116 - Engine Coolant Temperature Sensor Performance. P2067 - Fuel Level Sensor 2 Circuit Low (International Only). In addition the customer may notice one of the following conditions:A push/bump feeling when the transmission is downshifting from eighth to seventh gear. Vehicle shudder at stop/start with A/C on. Software enhancement also includes:Calibration update to allow the throttle body to be cycled while the engine is off, for diagnostic purposes.
18-035-16 REV.A2016-06-22. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE. "FLASH: POWERTRAIN DIAGNOSTIC AND SYSTEM IMPROVEMENTS THIS BULLETIN INVOLVES REPROGRAMMING THE POWERTRAIN CONTROL MODULE (PCM) WITH THE LATEST AVAILABLE SOFTWARE. A SMALL NUMBER OF CUSTOMERS MAY EXPERIENCE A MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION. UPON FURTHER INVESTIGATION, THE TECHNICIAN MAY FIND THE FOLLOWING DTCS SET IN THE PCM MEMORY: · **U1424 - IMPLAUSIBLE ENGINE TORQUE SIGNAL RECEIVED.** · P1D83 - IMPLAUSIBLE ENGINE OIL TEMPERATURE SIGNAL RECEIVED. · P0456 - EVAP SYSTEM SMALL LEAK. · P0335 - CRANKSHAFT POSITION SENSOR CIRCUIT. · U0402 - IMPLAUSIBLE DATA RECEIVED FROM TCM - (TRANSMISSION CONTROL MODULE). · B10EA - BLOWER MOTOR CONTROL CIRCUIT HIGH. · B10E9 - BLOWER MOTOR CONTROL CIRCUIT LOW. · P0441 - EVAP PURGE SYSTEM PERFORMANCE. · P0116 - ENGINE COOLANT TEMPERATURE SENSOR PERFORMANCE. · P2067 - FUEL LEVEL SENSOR 2 CIRCUIT LOW (INTERNATIONAL ONLY). IN ADDITION THE CUSTOMER MAY NOTICE ONE OF THE FOLLOWING CONDITIONS: · A PUSH SENSATION WHEN THE TRANSMISSION IS DOWNSHIFTING FROM EIGHTH TO SEVENTH GEAR. · VEHICLE SHUDDER AT STOP/START WITH A/C ON."

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