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Service bulletins for the 2020 Jeep Gladiator

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.

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

Warranty extensions
1140452026-08-19. STRUCTURE:BODY. ID-25-11 Rev. C Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
1140442026-08-19. STRUCTURE:BODY. D-25-15 Rev. C Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
16C Combo Rev32026-08-13. ELECTRICAL SYSTEM. EMISSION RECALL – NORTH AMERICA Check Engine/Malfunction Indicator Lamp 16C The instrument panel cluster on about 32,587 of the above vehicles may have an inoperable check engine/malfunction indicator lamp (CEL/MIL). (JT) vehicles: CEL/MIL and cargo lamp indicator function are swapped. (JL) vehicles: CEL/MIL will not turn on. The CEL/MIL in and of itself will not affect emissions. However, if there was an emission issue that would require illumination of the CEL/MIL, the customer would not be alerted. The vehicle would be non-compliant to the OBD II regulation.
1138092026-08-06. ELECTRICAL SYSTEM. ID-26-37 (XZ1) Instrument Panel Cluster (IPC) - Select 2018 - 2020 Jeep Wrangler (JL) and 2020 Jeep Gladiator (JT)
1138132026-08-06. ELECTRICAL SYSTEM. D-26-17 (XZ1) Instrument Panel Cluster (IPC) - Select 2018 - 2020 Jeep Wrangler (JL) and 2020 Jeep Gladiator (JT)
16C Combo REV22026-03-25. ELECTRICAL SYSTEM. Emissions Recall 16C - Check Engine/Malfunction Indicator Lamp - Dealer Notification (Revision 2)
1104312026-03-05. STRUCTURE:BODY. FCA Caribbean Warranty Newsletter – Volume 12, Issue 2
1104292026-03-05. STRUCTURE:BODY. Warranty Newsletter – Volume 12, Issue 2
1104692026-03-05. STRUCTURE:BODY. ID-25-11 Rev. B Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
1104622026-03-05. STRUCTURE:BODY. D-25-15 Rev. B Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
16C Combo REV12026-02-19. ELECTRICAL SYSTEM. EMISSION RECALL – NORTH AMERICA Check Engine/Malfunction Indicator Lamp Reference: 16C
1086572025-11-26. UNKNOWN OR OTHER. ID-25-11 Rev. A Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
1086552025-11-26. UNKNOWN OR OTHER. D-25-15 Rev. A Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
1045582025-04-11. UNKNOWN OR OTHER. FCA Caribbean Warranty Newsletter – Volume 11, Issue 4
1045572025-04-10. UNKNOWN OR OTHER. Warranty Newsletter – Volume 11, Issue 4
1023152024-12-17. UNKNOWN OR OTHER. Warranty Bulletin ID-23-03 Rev. H 2018 - 2024 Jeep Wrangler (JL) and 2020 - 2024 (Current) Jeep Gladiator (JT) - Corrosion Warranty Claim Simplification
1023002024-12-17. UNKNOWN OR OTHER. Warranty Bulletin D-23-04 Rev. G 2018 - 2024 Jeep Wrangler (JL) and 2020 - 2024 Jeep Gladiator (JT) - Corrosion Warranty Claim Simplification
1016132024-11-13. STEERING. FCA Caribbean Warranty Bulletin ID-23-10 Rev. A (XF1) Steering Damper – Select 2018 - 2020 Jeep Wrangler (JL), 2020 Jeep Gladiator (JT) and 2018 Jeep Wrangler (JK)
1011372024-10-18. ENGINE. Warranty Bulletin D-23-04 Rev. F 2018 - 2024 Jeep Wrangler (JL) and 2020 - 2024 Jeep Gladiator (JT) - Corrosion Warranty Claim Simplification
1008762024-10-08. STRUCTURE:BODY; ENGINE. FCA Caribbean Warranty Bulletin ID-23-03 Rev. F 2018 - 2024 (Current) Jeep Wrangler (JL) and 2020 - 2024 (Current) Jeep Gladiator (JT) - Corrosion Warranty Claim Simplification
1008752024-10-03. ENGINE; STRUCTURE:BODY. Warranty Bulletin D-23--04 2018 - 2024 (Current) Jeep Wrangler (JL) and 2020 - 2024 (Current) Jeep Gladiator (JT) - Corrosion Warranty Claim Simplification
998852024-08-12. STRUCTURE:BODY; UNKNOWN OR OTHER. WARRANTY BULLETIN D-23-04 2018 - 2024 (Current) Jeep Wrangler (JL) and 2020 - 2024 (Current) Jeep Gladiator (JT) - Corrosion Warranty Claim Simplification (Rev. D)
980602024-06-05. ENGINE. "FCA CARIBBEAN WARRANTY OPERATIONS NEWSLETTER VOLUME 10, ISSUE 4"
980512024-06-05. ENGINE. Warranty Newsletter – Volume 10, Issue 4

A warranty extension may pay for a repair after the basic warranty has ended. Read the document for which vehicles and which repair it covers.

By type

By component

By trouble code

Bulletins, newest first
08-358-262026-10-16. Service bulletin. ELECTRICAL SYSTEM. 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.
08-358-262026-10-16. Service bulletin. ELECTRICAL SYSTEM. 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.
S26210000042026-10-07. Service bulletin. POWER TRAIN. The Customer May Complain About a Popping Noise, Grinding Noise, or an Intermittent No Reverse or Forward Transmission Engagement. The Tech May Find Damaged and/or Worn Transmission Output Shaft Splines (850RE Transmission Only)
91009002026-09-17. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY. Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
1140452026-08-19. Warranty extension. STRUCTURE:BODY. ID-25-11 Rev. C Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
1140442026-08-19. Warranty extension. STRUCTURE:BODY. D-25-15 Rev. C Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
16C Combo Rev32026-08-13. Warranty extension. ELECTRICAL SYSTEM. EMISSION RECALL – NORTH AMERICA Check Engine/Malfunction Indicator Lamp 16C The instrument panel cluster on about 32,587 of the above vehicles may have an inoperable check engine/malfunction indicator lamp (CEL/MIL). (JT) vehicles: CEL/MIL and cargo lamp indicator function are swapped. (JL) vehicles: CEL/MIL will not turn on. The CEL/MIL in and of itself will not affect emissions. However, if there was an emission issue that would require illumination of the CEL/MIL, the customer would not be alerted. The vehicle would be non-compliant to the OBD II regulation.
08-298-26 REV. A2026-08-13. Service bulletin. ELECTRICAL SYSTEM. Instrument Panel Cluster (IPC) Blank XZ1 Warranty Extension Customers may experience the following: SYMPTOM: ● **A blank electronic vehicle information center (EVIC) in the IPC. No information is displayed for the fuel level, temperature gauge, odometer, outside temperature, PRNDL and optional digital speedometer Fig. 1. IMPORTANT! The analog speedometer and tachometer gauges continue to function normally Fig. 1**. This bulletin involves replacing the IPC.
1138092026-08-06. Warranty extension. ELECTRICAL SYSTEM. ID-26-37 (XZ1) Instrument Panel Cluster (IPC) - Select 2018 - 2020 Jeep Wrangler (JL) and 2020 Jeep Gladiator (JT)
1138132026-08-06. Warranty extension. ELECTRICAL SYSTEM. D-26-17 (XZ1) Instrument Panel Cluster (IPC) - Select 2018 - 2020 Jeep Wrangler (JL) and 2020 Jeep Gladiator (JT)
08-298-262026-08-06. Service bulletin. ELECTRICAL SYSTEM. Instrument Panel Cluster (IPC) Blank XZ1 Warranty Extension Customers may experience the following: SYMPTOM: ● A blank IPC display. No information is displayed for the speedometer, fuel level, temperature gauge, odometer, outside temperature and PRNDL. NOTE: The speedometer and tachometer continue to function normally. This bulletin involves replacing the IPC.
1132712026-07-18. Service bulletin. ENGINE. CORE – HEATER
1132702026-07-18. Service bulletin. ENGINE. CORE – HEATER
1128622026-07-02. Service bulletin. ELECTRICAL SYSTEM. MOTOR - BLOWER WITH WHEEL
1128632026-07-02. Service bulletin. ELECTRICAL SYSTEM. MOTOR - BLOWER WITH WHEEL
1128562026-07-02. Service bulletin. UNKNOWN OR OTHER. HEATER - ELECTRIC COOLANT
1128422026-07-02. Service bulletin. ENGINE. BOLT - HEX FLANGE HEAD
1128572026-07-02. Service bulletin. UNKNOWN OR OTHER. HEATER - ELECTRIC COOLANT
91008352026-06-18. Service bulletin. ELECTRICAL SYSTEM. Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
S26230000402026-06-16. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM. Passive Entry Exterior Door Handle Inoperative When Touched To Lock And Or Unlock.
1117602026-06-16. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM. MOTOR AND LINKAGE - WINDSHIELD WIPER
08-208-26 REV. A2026-05-20. Service bulletin. ELECTRICAL SYSTEM. Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub (no charging, no data). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle.
08-208-262026-05-20. Service bulletin. ELECTRICAL SYSTEM. Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub (no charging, no data). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle
08-208-262026-05-13. Service bulletin. ELECTRICAL SYSTEM. Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub (no charging, no data). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle
S26230000182026-04-01. Service bulletin. STRUCTURE:BODY. Wind Noise From Hard Top Freedom Panels Near Rear View Mirror While Driving.

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