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Service bulletin 09-013-20

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 id10187686
Published by NHTSA2021-03-01
Manufacturer's number09-013-20
Manufacturer's date2020-12-05
NHTSA componentENGINE; EQUIPMENT; ELECTRICAL SYSTEM

NHTSA's summary

3.6L Pentastar Upgrade Spark Plug Internal Crack This bulletin involves replacing all six spark plugs. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire. P0305 - Cylinder 5 Misfire. P0306 - Cylinder 6 Misfire. Customers may also comment on the following: Rough running engine.

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

Electrical system, Engine, Equipment and accessories

Trouble codes named

P0301, P0302, P0303, P0304, P0305, P0306

Vehicles listed
CHRYSLER PACIFICA2020
DODGE DURANGO2020, 2021
JEEP GLADIATOR2021
JEEP GRAND CHEROKEE2020, 2021
JEEP WRANGLER2021
RAM 15002021

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

Recalls for the same vehicles and component
26V3620002026-06-04. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
25V8760002025-12-17. EQUIPMENT ADAPTIVE/MOBILITY:WHEELCHAIR RESTRAINTS/SECUREMENT:LATCH/ANCHOR:
25V7410002025-10-30. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
25V2980002025-05-08. AIR BAGS; ELECTRICAL SYSTEM:WIRING
24V7200002024-09-27. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
24V6520002024-09-05. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
23V7870002023-11-22. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
20233382023-06-08. Engine
23V4110002023-06-08. ENGINE AND ENGINE COOLING
20232212023-04-13. Engine

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
S26080000382026-10-16. Service bulletin. High Voltage Battery Has Lower SOC After Overnight Sleep Cycle
08-366-262026-10-16. Service bulletin. Flash: Drivetrain Control Module (DTCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● C147B-92 - Front Axle Disconnect Sensor Performance or Incorrect Operation Customers may comment on one or more of the following: ● 4WD system warning lights, service messages, or flashing indicators are displayed in the Instrument Panel Cluster (IPC). ● The vehicle does not engage 4WD properly. This bulletin involves reprogramming the DTCM with the latest available software.
S26080000382026-10-16. Service bulletin. High Voltage Battery Has Lower SOC After Overnight Sleep Cycle
08-366-262026-10-16. Service bulletin. Flash: Drivetrain Control Module (DTCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● C147B-92 - Front Axle Disconnect Sensor Performance or Incorrect Operation Customers may comment on one or more of the following: ● 4WD system warning lights, service messages, or flashing indicators are displayed in the Instrument Panel Cluster (IPC). ● The vehicle does not engage 4WD properly. This bulletin involves reprogramming the DTCM with the latest available software.
S26210000062026-10-07. Service bulletin. Note: Document released 10/2/2026. Multiple Warning Indicators On In The IPC. ESM - PRNDL Flashing. And The Vehicle Will Not Shift Into Gear. The Wipers May Be On, With An Electric Parking Brake Unavailable.
08-221-26 REV. B2026-09-30. Service bulletin. R1H Radio U41.10 Software Update - Dealer Option Customers may experience one or more of the following: SYMPTOM: ● **Speakers may emit a humming, screeching, buzzing, clicking, or bass noise (not related to the amplifier).** ● FCW OFF light ON with no DTCs and can't turn off. ● Blank screen and then reboot every 2 minutes and 40 seconds. (Rearview Camera Functions Normally). ● Paddle shifters not working/no longer a setting. ● Autolocks not working. ● Auto headlights not working. ● AM station not working (Appears some of the vehicles PROXI defaults to "1" which is absent for AM). ● Album Art flickering issue. ● Blank screen and then reboot every 2 minutes and 40 seconds. ● CarPlay icon disappears from main screen while still active, leaving no navigation path back. ● Light/dark theme mismatch between Radio and temperature screens at key-on Radio experiences lockups, resets, blank screens, and language issues after FOTA. ● Valet mode sends duplicate requests causing HU and vehicle state misalignment. ● Rear seat media page intermittently shows a blank screen. ● Unable to select or drag 'Pitch and Roll' widget on home screen. ● USB playback resumes incorrectly, skipping to next track after reconnect. ● Album art not displayed on HMI despite availability in media. ● Incorrect call timer displayed for conference calls. ● Call status remains 'active' on widget after call ends. ● Second call status not updated on home screen widget. ● Rear entertainment tab intermittently blank when switching apps. ● System crashes for 20 to 30 seconds after voice reply action. ● Media progress bar continues incorrectly after second call acceptance. ● CarPlay device fails to reconnect automatically or manually. ● Rear HVAC lock/unlock text missing while icon is present. ● Visual glitch observed on Front Passenger Display Module (FPDM) display. ● Surround view camera accessible while driving across apps (unexpected behavior). This bulletin involves inspecting and if required, updating the radio software level to U41.10. Depending on the radio's current software level the radio may need a one or two USB update
91009052026-09-17. Service bulletin. Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
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
91009002026-09-17. Service bulletin. Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
91009022026-09-17. Service bulletin. Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.