Jeep Wrangler Service Bulletins (2021)

1,032 manufacturer communications on file.

May 3, 2021•Document ID: 10230082
Service Bulletin/Repair Instructions
POWER TRAIN
Mfr Comm. #:
74244
Date Added:
January 17, 2023
Manufacturer:
JEEP
Summary
Warranty Bulletin D-20-23 Part Order Restriction Program - 48V Power Pack Unit (PPU) - Select 2018 - 2021 Jeep Wrangler (JL) and 2019 - 2021 RAM (DT) (Rev. A)
Associated Products (2)
2021 Jeep Wrangler 2021 Ram 1500
Associated Documents
- Download MC-10230082-0001.pdf↗
May 3, 2021•Document ID: 10230016
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM
Mfr Comm. #:
S2118000006
Date Added:
January 17, 2023
Manufacturer:
RAM
Summary
Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P20C6 ? Reductant Heater 4 Control Circuit, Set.
Associated Products (3)
2021 Jeep Gladiator 2021 Jeep Wrangler 2021 Ram 1500
Associated Documents
- Download MC-10230016-0001.pdf↗
May 3, 2021•Document ID: 10223470
Service Bulletin/Repair Instructions
POWER TRAIN:DRIVELINE:HYDRAULIC:MOTOR/PUMP; POWER TRAIN
Mfr Comm. #:
74244
Date Added:
October 17, 2022
Manufacturer:
JEEP
Summary
Warranty Bulletin D-20-23 Part Order Restriction Program - 48V Power Pack Unit (PPU) - Select 2018 - 2021 Jeep Wrangler (JL) and 2019 - 2021 RAM (DT) (Rev. A)
Associated Products (2)
2021 Jeep Wrangler 2021 Ram 1500
Associated Documents
- Download MC-10223470-0001.pdf↗
May 3, 2021•Document ID: 10223404
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM
Mfr Comm. #:
S2118000006
Date Added:
October 17, 2022
Manufacturer:
JEEP
Summary
Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P20C6 ? Reductant Heater 4 Control Circuit, Set.
Associated Products (3)
2021 Jeep Gladiator 2021 Jeep Wrangler 2021 Ram 1500
Associated Documents
- Download MC-10223404-0001.pdf↗
May 3, 2021•Document ID: 10223310
Service Bulletin/Repair Instructions
POWER TRAIN
Mfr Comm. #:
74244
Date Added:
October 17, 2022
Manufacturer:
RAM
Summary
Warranty Bulletin D-20-23 Part Order Restriction Program - 48V Power Pack Unit (PPU) - Select 2018 - 2021 Jeep Wrangler (JL) and 2019 - 2021 RAM (DT) (Rev. A)
Associated Products (2)
2021 Jeep Wrangler 2021 Ram 1500
Associated Documents
- Download MC-10223310-0001.pdf↗
May 3, 2021•Document ID: 10223244
Service Bulletin/Repair Instructions
EXTERIOR LIGHTING
Mfr Comm. #:
S2118000006
Date Added:
October 17, 2022
Manufacturer:
RAM
Summary
Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P20C6 ? Reductant Heater 4 Control Circuit, Set.
Associated Products (3)
2021 Jeep Gladiator 2021 Jeep Wrangler 2021 Ram 1500
Associated Documents
- Download MC-10223244-0001.pdf↗
May 3, 2021•Document ID: 10198404
Service Bulletin/Repair Instructions
POWER TRAIN
Mfr Comm. #:
74244
Date Added:
June 28, 2021
Manufacturer:
RAM
Summary
Warranty Bulletin D-20-23 Part Order Restriction Program - 48V Power Pack Unit (PPU) - Select 2018 - 2021 Jeep Wrangler (JL) and 2019 - 2021 RAM (DT) (Rev. A)
Associated Products (2)
2021 Jeep Wrangler 2021 Ram 1500
Associated Documents
- Download MC-10198404-0001.pdf↗
May 3, 2021•Document ID: 10198338
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM
Mfr Comm. #:
S2118000006
Date Added:
June 28, 2021
Manufacturer:
JEEP
Summary
Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P20C6 ? Reductant Heater 4 Control Circuit, Set.
Associated Products (3)
2021 Jeep Gladiator 2021 Jeep Wrangler 2021 Ram 1500
Associated Documents
- Download MC-10198338-0001.pdf↗
April 29, 2021•Document ID: 10221223
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM
Mfr Comm. #:
0807121
Date Added:
September 26, 2022
Manufacturer:
JEEP
Summary
Charge Functions and Charge Inhibits This bulletin involves discussing the charging strategy - support of low voltage system
Associated Products (1)
2021 Jeep Wrangler
Associated Documents
- Download MC-10221223-0001.pdf↗
April 29, 2021•Document ID: 10221220
Service Bulletin/Repair Instructions
HYBRID PROPULSION SYSTEM
Mfr Comm. #:
0806921
Date Added:
September 26, 2022
Manufacturer:
JEEP
Summary
Detailed Proper PHEV Engine Operation This bulletin is to communicate that when the combustion engine starts for the first time within a key-cycle (either when the vehicle is first operational at the key crank, or while driving), the propulsion system will generally operate in ?series-mode? for up to 60 seconds.
Associated Products (1)
2021 Jeep Wrangler
Associated Documents
- Download MC-10221220-0001.pdf↗
April 29, 2021•Document ID: 10221173
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM
Mfr Comm. #:
S2118000004
Date Added:
September 26, 2022
Manufacturer:
JEEP
Summary
Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P225D ? NOX Sensor 1/1 Performance, Signal Stuck Low And/Or P225C ? NOX Sensor 1/1 Performance, Signal Stuck High, Set.
Associated Products (3)
2021 Jeep Gladiator 2021 Jeep Wrangler 2021 Ram 1500
Associated Documents
- Download MC-10221173-0001.pdf↗
April 29, 2021•Document ID: 10194076
Service Bulletin/Repair Instructions
EQUIPMENT:ELECTRICAL
Mfr Comm. #:
08-071-21
Date Added:
May 24, 2021
Manufacturer:
JEEP
Summary
Charge Functions and Charge Inhibits This bulletin involves discussing the charging strategy - support of low voltage system
Associated Products (1)
2021 Jeep Wrangler
Associated Documents
- Download MC-10194076-0001.pdf↗
April 29, 2021•Document ID: 10194073
Service Bulletin/Repair Instructions
POWER TRAIN
Mfr Comm. #:
08-069-21
Date Added:
May 24, 2021
Manufacturer:
JEEP
Summary
Detailed Proper PHEV Engine Operation This bulletin is to communicate that when the combustion engine starts for the first time within a key-cycle (either when the vehicle is first operational at the key crank, or while driving), the propulsion system will generally operate in ?series-mode? for up to 60 seconds.
Associated Products (1)
2021 Jeep Wrangler
Associated Documents
- Download MC-10194073-0001.pdf↗
April 29, 2021•Document ID: 10194026
Service Bulletin/Repair Instructions
BACK OVER PREVENTION; EXTERIOR LIGHTING
Mfr Comm. #:
S2118000004
Date Added:
May 24, 2021
Manufacturer:
JEEP
Summary
Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P225D ? NOX Sensor 1/1 Performance, Signal Stuck Low And/Or P225C ? NOX Sensor 1/1 Performance, Signal Stuck High, Set.
Associated Products (2)
2021 Jeep Gladiator 2021 Jeep Wrangler
Associated Documents
- Download MC-10194026-0001.pdf↗
April 27, 2021•Document ID: 10221170
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM
Mfr Comm. #:
S2018000002
Date Added:
September 26, 2022
Manufacturer:
JEEP
Summary
Malfunction Indicator Lamp (MIL) Illuminated. Fuel Injection Quantity Diagnostic Trouble Codes (DTCs) Set.
Associated Products (3)
2021 Jeep Gladiator 2021 Jeep Wrangler 2021 Ram 1500
Associated Documents
- Download MC-10221170-0001.pdf↗
April 27, 2021•Document ID: 10194023
Service Bulletin/Repair Instructions
EXTERIOR LIGHTING
Mfr Comm. #:
S2018000002 Rev.
Date Added:
May 24, 2021
Manufacturer:
JEEP
Summary
Malfunction Indicator Lamp (MIL) Illuminated. Fuel Injection Quantity Diagnostic Trouble Codes (DTCs) Set.
Associated Products (3)
2021 Jeep Gladiator 2021 Jeep Wrangler 2021 Ram 1500
Associated Documents
- Download MC-10194023-0001.pdf↗
April 24, 2021•Document ID: 10221164
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM
Mfr Comm. #:
S1708000118
Date Added:
September 26, 2022
Manufacturer:
JEEP
Summary
Battery Drain Concern, Dual USB Port Normal Operational Draw, Extended Illumination After Key Off
Associated Products (9)
2021 Alfa Romeo Stelvio 2021 Chrysler 300 2021 Chrysler Pacifica 2021 Dodge Charger 2021 Dodge Durango 2021 Jeep Compass 2021 Jeep Grand Cherokee 2021 Jeep Wrangler 2021 Ram 5500
Associated Documents
- Download MC-10221164-0001.pdf↗
April 24, 2021•Document ID: 10194017
Service Bulletin/Repair Instructions
EQUIPMENT:ELECTRICAL
Mfr Comm. #:
S1708000118 Rev.
Date Added:
May 24, 2021
Manufacturer:
CHRYSLER
Summary
Battery Drain Concern, Dual USB Port Normal Operational Draw, Extended Illumination After Key Off
Associated Products (8)
2021 Alfa Romeo Stelvio 2021 Chrysler 300 2021 Chrysler Pacifica 2021 Dodge Charger 2021 Dodge Durango 2021 Jeep Compass 2021 Jeep Grand Cherokee 2021 Jeep Wrangler
Associated Documents
- Download MC-10194017-0001.pdf↗
April 23, 2021•Document ID: 10221160
Service Bulletin/Repair Instructions
STRUCTURE; EQUIPMENT
Mfr Comm. #:
S2023000020
Date Added:
September 26, 2022
Manufacturer:
JEEP
Summary
Tick Noise From A-pillar Front Power Top Side Rail
Associated Products (1)
2021 Jeep Wrangler
Associated Documents
- Download MC-10221160-0001.pdf↗
April 23, 2021•Document ID: 10194013
Service Bulletin/Repair Instructions
BACK OVER PREVENTION; POWER TRAIN
Mfr Comm. #:
S2023000020 Rev.
Date Added:
May 24, 2021
Manufacturer:
JEEP
Summary
Tick Noise From A-pillar Front Power Top Side Rail
Associated Products (1)
2021 Jeep Wrangler
Associated Documents
- Download MC-10194013-0001.pdf↗

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