2020 Jeep Wrangler Technical Service Bulletins

1,020 technical service bulletins (TSBs) are on record for the 2020 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.

• 10223594Jun 24, 2020Engine cooling. Water Pump Inlet Tube Fastener Torque This bulletin involves checking the torque on the water pump inlet tube fasteners to possibly eliminate coolant leak at this location. The customer may describe either a coolant leak or the coolant level is low.
• 10177539Jun 24, 2020Engine cooling. Water Pump Inlet Tube Fastener Torque This bulletin involves checking the torque on the water pump inlet tube fasteners to possibly eliminate coolant leak at this location. The customer may describe either a coolant leak or the coolant level is low.
• 10223551Jun 19, 2020Electrical system, Transmission and drivetrain. Engine Surge Feel and/or Diagnostic Trouble Code P0299 ? Turbo Underboost Condition After Updating The Powertrain Control Module (PCM) Software. (ETL, ETM, ETN Engines)
• 10223552Jun 18, 2020Electrical system. SGW (Security Gateway Module) Setting DTC B235A-00 ECU In-Plant- Mode
• 10177497Jun 18, 2020Equipment. SGW (Security Gateway Module) Setting DTC B235A-00 ECU In-Plant- Mode
• 10223547Jun 17, 2020Equipment. Volume Uncontrollable Or Stuck On High
• 10177492Jun 17, 2020Steering. Volume Uncontrollable Or Stuck On High
• 10223586Jun 16, 2020Transmission and drivetrain. 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 technician may find one of the followingDTCs have been set: P0607 - ECU Internal Performance. P0506 - Idle Speed Performance Lower Than Expected.
• 10223585Jun 16, 2020Transmission and drivetrain. 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 technician may find one or more ofthe following DTCs have been set: P0607 - ECU Internal Performance. P0506 - Idle Speed Performance Lower Than Expected
• 10177531Jun 16, 2020Electrical system, Transmission and drivetrain. 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 technician may find one of the followingDTCs have been set: P0607 - ECU Internal Performance. P0506 - Idle Speed Performance Lower Than Expected.
• 10177530Jun 16, 2020Transmission and drivetrain, 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 technician may find one or more ofthe following DTCs have been set: P0607 - ECU Internal Performance. P0506 - Idle Speed Performance Lower Than Expected
• 10223543Jun 10, 2020Electronic stability control. ABS, ESC Lamp On, Red Brake Lamp Flashing
• 10223540Jun 10, 2020Equipment. Cluster Service 4WD Light On
• 10223537Jun 10, 2020Equipment. Audio Mute On All Sources Except AM
• 10177488Jun 10, 2020Brakes. ABS, ESC Lamp On, Red Brake Lamp Flashing
• 10177485Jun 10, 2020Electrical system. Cluster Service 4WD Light On
• 10177482Jun 10, 2020Electrical system. Audio Mute On All Sources Except AM
• 10223534Jun 8, 2020Visibility (wipers, defrost, mirrors). Hard top quarter window cracked
• 10177479Jun 8, 2020Visibility (wipers, defrost, mirrors). Hard top quarter window cracked
• 10223530Jun 6, 2020Tires. Oversized Tire Calibration For Customized Jeep Wrangler, Gladiator, 2019 Ram Heavy Duty DJ, MVP Update Required, MVP Hotline
• 10177475Jun 6, 2020Tires, Electrical system. Oversized Tire Calibration For Customized Jeep Wrangler, Gladiator, 2019 Ram Heavy Duty DJ, MVP Update Required, MVP Hotline
• 10223532Jun 5, 2020Transmission and drivetrain. Service 4wd Light On, Message AWD System Service Required
• 10223571Jun 4, 2020Transmission and drivetrain. Customer Satisfaction Notification W45 Front Axle Bracket
• 10177516Jun 4, 2020Suspension, Transmission and drivetrain. Customer Satisfaction Notification W45 Front Axle Bracket
• 10177511Jun 3, 2020Transmission and drivetrain, Equipment. Safety Recall W12 JL/JT Clutch Update to Dealer Instructions for Parts Ordering
• 10177471Jun 3, 2020Equipment. VP2R Radio Clock Not Keeping Time
• 10223575Jun 2, 2020Electrical system. Flash: Driver Assistance System Module (DASM) Enhancements This bulletin involves reprogramming the DASM with the latest software available. The customer may describe the following:Instrument Panel Cluster (IPC) warnings for the FCW informing the driver to apply the brakes. Software Enhancement (06/02/2020)? Allows customers to turn off the FCW indefinitely, rather than resetting to ?ON? at each key cycle, (Japan…
• 10177520Jun 2, 2020Electrical system, Equipment. Flash: Driver Assistance System Module (DASM) Enhancements This bulletin involves reprogramming the DASM with the latest software available. The customer may describe the following:Instrument Panel Cluster (IPC) warnings for the FCW informing the driver to apply the brakes. Software Enhancement (06/02/2020)? Allows customers to turn off the FCW indefinitely, rather than resetting to ?ON? at each key cycle, (Japan…
• 10223525Jun 1, 2020Electrical system. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes P0407 ? EGR Sensor B Circuit Low, or P0408 ? EGR Sensor B Circuit High Set
• 10177470Jun 1, 2020Engine cooling. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes P0407 ? EGR Sensor B Circuit Low, or P0408 ? EGR Sensor B Circuit High Set
• 10176546May 28, 2020Equipment, Engine. Customer complaint may include an overfilled engine crankcase after an oil change.
• 10176543May 28, 2020Tires. Oversized Tire Calibration For Customized Jeep Wrangler And Galdiator, 2019 Ram Heavy Duty DJ, MVP Update Required, MVP Hotline
• 10176542May 28, 2020Transmission and drivetrain, Equipment, Tires. Required Updates When Changing Tire Sizes, Installing Mopar Lift Kits With Larger Tires, Manual Transmission Vehicles Setting DTC P08A6
• 10176588May 27, 2020Engine cooling, Equipment. Water Pump Inlet Tube Fastener Torque This bulletin involves checking the torque on the water pump inlet tube fasteners to possibly eliminate coolant leak at this location. The customer may describe either a coolant leak or the coolant level is low.
• 10176540May 22, 2020Equipment, Electrical system. VP4 Panasonic Radio USB Software Update Error Codes And Guidelines For Recovery
• 10176539May 19, 2020Equipment, Engine. No Crank, Extended Crank To Start, MIL Lamp On
• 10176538May 19, 2020Electrical system, Engine. MIL Lamp On, DTC P0325 - Knock Sensor 1 Circuit
• 10176575May 16, 2020Electrical system. Flash: Security Gateway Module (SGW) Enhancements This bulletin involves reprogramming the SGW with the latest available software. The SGW in these vehicles was flashed with a calibration intended to be paired with a different software version.No symptoms will be observable to the customer. Diagnostic services will still work correctly (e.g. vehicle scan, DTC read, etc.). However, the vehicle security firewalls…
• 10176563May 14, 2020Equipment, Engine. Customer Satisfaction Notification U21 Serpentine Belt Tensioner
• 10176572May 13, 2020Electrical system, Equipment. Flash: Body Control Module (BCM) Enhancements This bulletin involves reprogramming the BCM with the latest available software. Customer will notice that the ambient temperature display in the cluster and in the radio, is showing all dashes, with no temperature display read out.
• 10176527May 9, 2020Electrical system. Stop Start Inoperative, Auxiliary Battery Low Requires Charging, No Start
• 10176568May 8, 2020Electrical system, Equipment, Engine. Inspect Hydraulic Belt Tensioner This bulletin involves inspecting the Julian date on the hydraulic belt tensioner for possible replacement. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set:P2BA3-00 - Starter/Generator Mechanical Performance. P0A92-00 -Hybrid Generator…
• 10176472May 6, 2020Engine cooling, Equipment. FILTER KIT, Engine Oil When refilling oil on a JT, JL, DT, or RU equipped with a 3.6L Pentastar UPGRADE engine, please be advised that the engine oil capacity is 5 quarts of oil.
• 10176515May 5, 2020Electrical system, Latches, locks and linkages, Equipment. Blind Spot Alert Temporarily Unavailable Is Displayed On The EVIC. Power Mirrors And/Or Power Door Locks Do Not Function
• 10176564May 1, 2020Visibility (wipers, defrost, mirrors). Rear Window Defroster Inoperable This bulletin involves inspecting and possibly repairing the terminal of the rear defroster circuit. Customers may comment on one or more of the following:Rear window defroster is inoperable. Wire(s) hanging from the defroster back glass.
• 10175743Apr 30, 2020Body and structure, Equipment. Disinfectant Solution Recommended for COVID-19
• 10175698Apr 30, 2020Electrical system. CEL (Check Engine Lamp) Illuminates, Recent PCM Replace Or Flash Update Performed, DTC P057B Brake Pedal Position Sensor Circuit Performance
• 10175694Apr 30, 2020Seats. Squeak Noise From Rear Seat
• 10175692Apr 28, 2020Electrical system. Customer complains of the MIL lamp on. Technician observes DTC P0456 EVAP System Small Leak or P0455 EVAP System Large Leak detected set in PCM.
• 10175689Apr 28, 2020Equipment. Radio Issues With iPhone 11

← All problems reported for the 2020 Jeep Wrangler