Technical Service Bulletins
Search 172,063 manufacturer communications covering 880 vehicle makes from 1955 to 2025.
Showing 3,789 bulletins for JEEP
0806621
Apr 27, 2021
111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY
Installing the Battery Positive Protection Cover (Missing) This bulletin involves installing the missing positive battery post protective cover. The positive battery cable protective cover is missing.
S2018000002 Rev.
Apr 27, 2021
120000 EXTERIOR LIGHTING
Malfunction Indicator Lamp (MIL) Illuminated. Fuel Injection Quantity Diagnostic Trouble Codes (DTCs) Set.
2101621
Apr 27, 2021
100000 POWER TRAIN
Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Enhancements to this software release:Shift Quality improvements on coast down and all upshifts.
S2124000005
Apr 27, 2021
138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
Customer Indicates The Air Conditioning Blow Warm Intermittently.
21-016-21
Apr 27, 2021
100000 POWER TRAIN
Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Enhancements to this software release:Shift Quality improvements on coast down and all upshifts.
08-066-21
Apr 27, 2021
110000 ELECTRICAL SYSTEM
Installing the Battery Positive Protection Cover (Missing) This bulletin involves installing the missing positive battery post protective cover. The positive battery cable protective cover is missing.
0806321
Apr 24, 2021
110000 ELECTRICAL SYSTEM
UJQ and UMQ Radio Enhancements This bulletin involves inspecting the software level and update the radio software level to 34.2. Customers may experience one or more of the following:The language switches to Italian. The language switches
S2108000101
Apr 24, 2021
020000 SUSPENSION
Suspension Mode Does Not Change To Firm Suspension When Selected
0806521
Apr 24, 2021
110000 ELECTRICAL SYSTEM
Flash: Radio Frequency Hub Module (RFHM) Enhancements This bulletin involves reprogramming the RFHM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation t
0806421
Apr 24, 2021
030000 SERVICE BRAKES, HYDRAULIC
Flash: Radio Frequency Hub Module (RFHM) Enhancements This bulletin involves reprogramming the RFHM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation t
08-065-21
Apr 24, 2021
110000 ELECTRICAL SYSTEM
Flash: Radio Frequency Hub Module (RFHM) Enhancements This bulletin involves reprogramming the RFHM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation t
08-064-21
Apr 24, 2021
030000 BRAKES (PWS)
Flash: Radio Frequency Hub Module (RFHM) Enhancements This bulletin involves reprogramming the RFHM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation t
08-063-21
Apr 24, 2021
010000 STEERING
UJQ and UMQ Radio Enhancements This bulletin involves inspecting the software level and update the radio software level to 34.2. Customers may experience one or more of the following:The language switches to Italian. The language switches
25-003-21
Apr 23, 2021
070000 FUEL SYSTEM, GASOLINE
Flash: Dosing Control Unit (DCU) Updates This bulletin involves reprogramming the Dosing Control Unit (DCU) with the latest available software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further inve
2500321
Apr 23, 2021
070000 FUEL SYSTEM, GASOLINE
Flash: Dosing Control Unit (DCU) Updates This bulletin involves reprogramming the Dosing Control Unit (DCU) with the latest available software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further inve
08-055-21 REV. A
Apr 22, 2021
353000 EQUIPMENT:ELECTRICAL
Key FOBIK Shortage and Restriction This bulletin is to inform customers, FOBIKs will be on restriction due to a temporary semi conductor shortage. Key FOBIKs to service customer vehicles are limited to customer vehicles which are inoperab
08055211
Apr 22, 2021
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
Key FOBIK Shortage and Restriction This bulletin is to inform customers, FOBIKs will be on restriction due to a temporary semi conductor shortage. Key FOBIKs to service customer vehicles are limited to customer vehicles which are inoperab
14-001-21
Apr 17, 2021
080000 FUEL SYSTEM, DIESEL
Difficulty Starting the Vehicle on the First Attempt Due to Possible Leaking Fuel Injectors This bulletin involves replacing all four fuel injectors due to a no start condition on the first attempt. Customers may experience the following:
2500221
Apr 17, 2021
070000 FUEL SYSTEM, GASOLINE
Flash: Dosing Control Unit (DCU) Updates This bulletin involves reprogramming the Dosing Control Unit (DCU) with the latestavailable software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further inves
1400121
Apr 17, 2021
061700 ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR
Difficulty Starting the Vehicle on the First Attempt Due to Possible Leaking Fuel Injectors This bulletin involves replacing all four fuel injectors due to a no start condition on the first attempt. Customers may experience the following:
25-002-21
Apr 17, 2021
070000 FUEL SYSTEM, GASOLINE
Flash: Dosing Control Unit (DCU) Updates This bulletin involves reprogramming the Dosing Control Unit (DCU) with the latestavailable software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further inves
18-038-21
Apr 16, 2021
110000 ELECTRICAL SYSTEM
Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the techn