2021 Jeep Wrangler Technical Service Bulletins

1,039 technical service bulletins (TSBs) are on record for the 2021 Jeep Wrangler. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10221619Jul 21, 2021Electrical system, Vehicle speed control. Stop Start Feature Is Inoperative, MIL Lamp On, Hood Switch DTC?s
• 10230263Jul 20, 2021Equipment, Electrical system. UAQ UCQ UAV, UCX, UAX and UCV Radio Over The Air Software Version Updates This bulletin provides information regarding the latest Flash Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. Once the FOTA has been completed, the software level will be 39.6.Review the table below to determine when the FOTA is due to be release. The…
• 10221677Jul 20, 2021Back-over prevention (rear camera). UAQ UCQ UAV, UCX, UAX and UCV Radio Over The Air Software Version Updates This bulletin provides information regarding the latest Flash Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. Once the FOTA has been completed, the software level will be 39.6.Review the table below to determine when the FOTA is due to be release. The…
• 10230204Jul 19, 2021Exterior lighting, Brakes, Fuel system. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P208B ? Reductant Pump 1 Control Performance, and/or P20E8 ? Reductant Pressure Too Low, Set.
• 10221618Jul 19, 2021Brakes, Fuel system, Exterior lighting. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P208B ? Reductant Pump 1 Control Performance, and/or P20E8 ? Reductant Pressure Too Low, Set.
• 10230259Jul 17, 2021Electrical system, Transmission and drivetrain. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software.
• 10221673Jul 17, 2021Transmission and drivetrain, Electrical system, Exterior lighting. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software.
• 10230194Jul 16, 2021Brakes. Head unit button stuck DTC code B14DA-2A
• 10221608Jul 16, 2021Brakes. Head unit button stuck DTC code B14DA-2A
• 10230190Jul 15, 2021Electrical system. Air Bag Lamp On, DTC B00DF-95 Passenger Restraints Disable Switch-Incorrect Assembly
• 10221604Jul 15, 2021Electrical system. Air Bag Lamp On, DTC B00DF-95 Passenger Restraints Disable Switch-Incorrect Assembly
• 10230252Jul 9, 2021Body and structure. Driver Side Freedom Panel Squeaks This bulletin includes removing the left Freedom Panel, drilling out the receiver bracket hole and applying grease in the bracket hole for a squeak condition. Customers may comment on one or more of the following: The left Freedom Panel squeaks when driving on rough roads.
• 10230183Jul 9, 2021Electrical system. No Start, Cannot Complete Module Replace, Proxi Or Module Proxi Configuration
• 10221666Jul 9, 2021Other or unknown. Driver Side Freedom Panel Squeaks This bulletin includes removing the left Freedom Panel, drilling out the receiver bracket hole and applying grease in the bracket hole for a squeak condition. Customers may comment on one or more of the following: The left Freedom Panel squeaks when driving on rough roads.
• 10221597Jul 9, 2021Electrical system. No Start, Cannot Complete Module Replace, Proxi Or Module Proxi Configuration
• 10230180Jul 6, 2021Engine cooling. Issue involves overheating, running hot, coolant leaks and related symptoms after a Mopar replacement engine has been installed in the vehicle.
• 10221594Jul 6, 2021Engine cooling. Issue involves overheating, running hot, coolant leaks and related symptoms after a Mopar replacement engine has been installed in the vehicle.
• 10230248Jul 2, 2021Electrical system. UAQ UCQ UAV, UCX, UAX and UCV Radio Over The Air Software Version Updates This bulletin provides information regarding the latest Flash Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. Once the FOTA has been completed the software level will be 39.6. The national launch for the FOTA will begin June 18, 2021.Review table…
• 10221662Jul 2, 2021Equipment, Electrical system. UAQ UCQ UAV, UCX, UAX and UCV Radio Over The Air Software Version Updates This bulletin provides information regarding the latest Flash Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. Once the FOTA has been completed the software level will be 39.6. The national launch for the FOTA will begin June 18, 2021.Review table…
• 10230246Jul 1, 2021Engine cooling. 3.6L Check Engine Light and Rough Running Engine This bulletin involves cutting off a wiring harness eyelet and splicing in a pigtail to the engine ground harness. 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) have been set: P1050 - Intake Valve Control Solenoid 1 Circuit/Open…
• 10230245Jul 1, 2021Steering. Noise In Steering Column Tailshaft When Turning Steering Wheel This bulletin involves inspecting and replacing the steering column if necessary. The customer may notice the following: A noise coming from the tailshaft of the steering column while turning.
• 10230174Jul 1, 2021Transmission and drivetrain. High Voltage Battery Installed, New Power Pack Unit/BPCM, No High Voltage Output From Hybrid Battery, No DTC?s
• 10221660Jul 1, 2021Electrical system, Engine cooling. 3.6L Check Engine Light and Rough Running Engine This bulletin involves cutting off a wiring harness eyelet and splicing in a pigtail to the engine ground harness. 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) have been set: P1050 - Intake Valve Control Solenoid 1 Circuit/Open…
• 10221659Jul 1, 2021Steering. Noise In Steering Column Tailshaft When Turning Steering Wheel This bulletin involves inspecting and replacing the steering column if necessary. The customer may notice the following: A noise coming from the tailshaft of the steering column while turning.
• 10221588Jul 1, 2021Transmission and drivetrain. High Voltage Battery Installed, New Power Pack Unit/BPCM, No High Voltage Output From Hybrid Battery, No DTC?s
• 10221355Jun 30, 2021Electrical system. 12V Battery Low Charge This bulletin involves testing and possibly replacing the 12V battery. Technicians or customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: U3007-00 - Control Module Input Power "B" Circuit/Open. C2100-00 - Battery Voltage Low. C05A4-00…
• 10221313Jun 30, 2021Visibility (wipers, defrost, mirrors). Whistle Wind Noise From Windshield Area.
• 10212494Jun 30, 2021Equipment, Engine cooling, Electrical system, Wheels. 12V Battery Low Charge This bulletin involves testing and possibly replacing the 12V battery. Technicians or customers may experience a Malfunction Indicator Lamp MIL illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes DTCs have been set: U3007-00 - Control Module Input Power "B" Circuit/Open. C2100-00 - Battery Voltage Low. C05A4-00 - Wheel…
• 10212445Jun 30, 2021Suspension. Hub and bearing - wheel
• 10212444Jun 29, 2021Equipment, Body and structure. Base - floor console
• 10221305Jun 26, 2021Back-over prevention (rear camera). Intermittently Backup Camera Does Not Display Red/Yellow/Green Gridlines Or Center Guideline
• 10221304Jun 26, 2021Engine cooling. CEL (Check Engine Lamp) On, DTC Turbocharger Wastegate Control Circuit Low
• 10212459Jun 26, 2021Electrical system. CEL Check Engine Lamp On, DTC Turbocharger Wastegate Control Circuit Low
• 10212458Jun 26, 2021Back-over prevention (rear camera). Intermittently Backup Camera Does Not Display Red/Yellow/Green Gridlines Or Center Guideline
• 10221346Jun 24, 2021Electrical system. 12V Battery Low Charge This bulletin involves testing and possibly replacing the 12V battery. Technicians or customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: U3007-00 - Control Module Input Power "B" Circuit/Open. C2100-00 - Battery Voltage Low. C05A4-00…
• 10221301Jun 24, 2021Steering. CAN C Bus Intermittently Loses Communication. Power Steering Becomes Stiff
• 10212493Jun 24, 2021Equipment, Brakes, Electrical system. 12V Battery Low Charge This bulletin involves testing and possibly replacing the 12V battery. Technicians or customers may experience a Malfunction Indicator Lamp MIL illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes DTCs have been set: U3007-00 - Control Module Input Power "B" Circuit/Open. C2100-00 - Battery Voltage Low. C05A4-00 - Wheel…
• 10212466Jun 24, 2021Transmission and drivetrain, Steering. CAN C Bus Intermittently Loses Communication. Power Steering Becomes Stiff
• 10212443Jun 24, 2021Latches, locks and linkages. Latch - front door
• 10221341Jun 22, 2021Body and structure. Clunk or Scrape Noise From The Front Right Side of Vehicle This bulletin includes replacing the right front coil spring and lower shock bolt only. Customers may comment on the following: A clunk or scrape noise coming from the front right side of the vehicle.Chipped paint on the tower and spring may also be noticeable.
• 10221340Jun 22, 2021Forward collision avoidance. Pedestrian Alert System Sound This bulletin serves as awareness for the normal operation of pedestrian alert system.
• 10221318Jun 22, 2021Electrical system. Customer Satisfaction Notification Y28 Intermittent Starts
• 10212501Jun 22, 2021Equipment. Customer Satisfaction Notification Y28 Intermittent Starts
• 10212490Jun 22, 2021Equipment, Electrical system. Pedestrian Alert System Sound This bulletin serves as awareness for the normal operation of pedestrian alert system.
• 10212477Jun 22, 2021Electrical system, Back-over prevention (rear camera). Clunk or Scrape Noise From The Front Right Side of Vehicle This bulletin includes replacing the right front coil spring and lower shock bolt only. Customers may comment on the following: A clunk or scrape noise coming from the front right side of the vehicle.Chipped paint on the tower and spring may also be noticeable.
• 10212446Jun 22, 2021Engine, Engine cooling. Camshaft - intake
• 10212436Jun 21, 2021Engine cooling. Muffler and tailpipe ? Exhaust
• 10221335Jun 19, 2021Equipment. UAQ UCQ UAV and UCV Radio Over The Air Software Version Updates This bulletin provides information regarding the latest Flash Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. Once the FOTA has been completed the software level will be 39.6. The national launch for the FOTA will begin June 18, 2021.
• 10221287Jun 19, 2021Engine cooling. Customer?s complaint may include a MIL-on with one or more of the following DTCs (Active, Pending, or Stored) in the PCM: P0133, P0137, P0171, P0300, P2096. The root cause could be due to oil leaking from Bank 1 valve cover seal on to the 1/2 (Bank 1 downstream) O2 sensor. This can adversely affect the 1/2 O2 sensor signal reading and lead to listed DTCs. Before performing normal diagnostic routines for the above…
• 10212487Jun 19, 2021Electrical system. UAQ UCQ UAV and UCV Radio Over The Air Software Version Updates This bulletin provides information regarding the latest Flash Over The Air FOTA update and provides the service technician an overview of the steps a customer will need to take to complete the update. Once the FOTA has been completed the software level will be 39.6. The national launch for the FOTA will begin June 18, 2021.

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