2021 Jeep Gladiator Technical Service Bulletins

700 technical service bulletins (TSBs) are on record for the 2021 Jeep Gladiator. 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.

• 11026568Dec 1, 2025Body and structure, Electrical system. Switch - power window
• 11025740Nov 19, 2025Other or unknown. ID-25-11 Rev. A Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
• 11025739Nov 19, 2025Other or unknown. D-25-15 Rev. A Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
• 11025508Nov 3, 2025Brakes. ESC Light Illuminated. DTC C1252-92 VACUUM PUMP CONTROL CIRCUIT And Or P258B ELECTRONIC VACUUM PUMP PERFORMANCE
• 11025028Oct 21, 2025Engine. Engine Oil Leak
• 11024323Oct 9, 2025Steering. Module - steering control & column
• 11023618Sep 24, 2025Engine. Data collection required for all 2020-2026MY vehicles with 3.6L PSU engines during any of their first 3 engine oil changes. This data collection is applicable to all vehicle with engines with sales codes: ERG, ERC, EH3 and ERF. To assist with monitoring and quality improvement of the 3.6L engine, every time a vehicle comes for any of the first 3 oil changes, please use wiTECH to record the total engine idle time…
• 11023331Sep 19, 2025Electrical system. Customer complaint may include a Mil On/Check Engine Lamp On and Electronic Throttle Control (ETC) Lamp On. There may also be associated driveability issues. Upon further investigation, the following fault codes may be found in the PCM:
• 11023612Sep 18, 2025Brakes. Switch - clutch starter interlock & master cylinder assembly - clutch
• 11023326Sep 18, 2025Body and structure. Exterior Front Lamps Condensation Clearing Procedure *Some customers may report that on occasion vehicle exterior front lamps (headlamps, fog lamps, grille lamps, logo lamps or signature lamps) assemblies are fogged with a light layer of condensation on the inside of the lenses*
• 11023168Sep 12, 2025Suspension. Shock And Strut Diagnosis And Replacement Guidelines Leaking, noisy, or weak shocks or struts.
• 11023074Sep 2, 2025Suspension. Shock absorber – suspension & shocks - rear
• 11022011Aug 16, 2025Body and structure. Aluminum Body Panel Corrosion Repair Aluminum corrosion or bubbling along the leading edge of hood, hinges or other exterior surface areas of the hinges, doors, fenders, swing gates or liftgates.
• 11022012Aug 14, 2025Body and structure. Aluminum Body Panel Corrosion Repair Aluminum corrosion or bubbling along the leading edge of hood, hinges or other exterior surface areas of the hinges, doors, fenders, swing gates or liftgates.
• 11022003Aug 13, 2025Body and structure. Aluminum Body Panel Corrosion Repair Aluminum corrosion or bubbling along the leading edge of hood, hinges or other exterior surface areas of the hinges, doors, fenders, swing gates or liftgates
• 11021043Jul 26, 2025Engine. Engine Rattle Noise
• 11021039Jul 23, 2025Electrical system. Tire Pressure Monitor (TPM) Service Information. TPM Lamp On.
• 11020858Jul 15, 2025Engine. Module - engine controller
• 11020855Jul 14, 2025Transmission and drivetrain. To inform dealers about the 850RE valve body PN: R8348504A connector: the original 16-pin connector included six pins that were not used in this application. To simplify the design, the connector has been optimized and updated to a 10-pin configuration.
• 11020767Jul 8, 2025Engine. Verify Reman part number availability. Order the "R" part number for all orders:
• 11020636Jul 4, 2025Transmission and drivetrain. 850RE D Clutch Repair Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must have at least 11,265 km (7,000 mi.) and exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0733-00 - Gear 3 Shift Incorrect Ratio. ● P1DA8-00 - Incorrect Gear Ratio Clutch A B or D Defective. ● P1D92-00 - Incorrect Gear Ratio - Clutch 4 Defective. Customers may also comment…
• 11020600Jul 4, 2025Electrical system. Decreased Remote Start And RKE Range. Tire Pressure Sensors Values Are Not Displayed
• 11020608Jul 3, 2025Engine. When replacing a camshaft and parts kit (P/N 68661146xx and/or 68661147xx), it is NOT necessary to order the roller-finger followers (rocker arms) separately, as these are included in the camshaft parts kit.
• 11020108Jun 24, 2025Fuel system. Frequent Repairs Of Fuel System Components Such As Fuel Filters Numerous Stellantis vehicles having fuel line components replaced such as diesel fuel filters. Occasionally, components are replaced before their standard life expectancy or when not contaminated with debris.
• 11019773Jun 18, 2025Engine. ADJUSTER Valve Lash Customer's complaint may include a ticking noise coming from the engine. Technician's observations can refer to spongy or stuck hydraulic lash adjusters. Exhaust lash adjusters found with a "spongy" condition (compressible plunger) leading to the assumption of being defective/malfunctioning. EXHAUST lash adjusters are designed to be COMPRESSIBLE by hand.
• 11019618Jun 13, 2025Engine. "Spark Knock/Engine Symptoms Customers may experience the following: ● Knocking or pinging noise coming from the engine upon acceleration. This bulletin involves cleaning the piston heads and cylinder head combustion chambers to resolve a spark knock condition being caused by oil intrusion through the PCV system."
• 11019442Jun 6, 2025Body and structure. "Shim - felt GIM # NUSENGCHR24018991: JL JT sun visor center support BSR. Add felt shim 68736674AA - 43MM OD x 10mm ID x 1mm thick. "
• 11019433Jun 6, 2025Fuel system. "Frequent Repairs Of Fuel System Components Such As Fuel Filters Numerous Stellantis vehicles having fuel line components replaced such as fuel filter. Occasionally, components are replaced before their standard life expectancy or when not contaminated with debris "
• 11018863May 29, 2025Fuel system. "Frequent Repairs Of Fuel Line Components Such As Fuel Filters Numerous Stellantis vehicles having fuel line components replaced such as fuel filter. Occasionally, components are replaced before their standard life expectancy or when not contaminated with debri "
• 11018810May 27, 2025Electrical system. Bezel & indicator- gear shift indicator
• 11018676May 21, 2025Suspension. "Shock And Strut Diagnosis And Replacement Guidelines Leaking, noisy, or weak shocks or struts. "
• 11018482May 18, 2025Engine. "Misfire Diagnostic Trouble Codes (DTCs), Rough Idle, Valvetrain Noise Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0301 - Cylinder 1 Misfire. ● P0302 - Cylinder 2 Misfire. ● P0303 - Cylinder 3 Misfire. ● P0304 - Cylinder 4 Misfire. ● P0305 - Cylinder 5 Misfire. ● P0306 - Cylinder 6 Misfire…
• 11018447May 16, 2025Electrical system. "Washer Light On And Will Not Turn Off After Adding Washer Solvent."
• 11018500May 15, 2025Fuel system. Tube - fuel injector supply & gasket - none
• 11018408May 14, 2025Fuel system. Tube - fuel injector supply & gasket - none
• 11018453May 12, 2025Transmission and drivetrain. "Transmission Fluid Please note fluid color/condition/odor is NOT an indicator of transmission health and should not be used as the reason for unit replacement. Visible ""glitter"" or debris in the pan does not justify complete unit replacements."
• 11018452May 12, 2025Transmission and drivetrain. Transmission "Transmission For transmission concerns related to DTCs P0733-00, P1DA8-00, and/or P1D92-00, a repair is available, and transmission replacement is NOT required. Please reference TSB 21-009-25 Rev. A, for details on D-clutch replacement. Please also note, visible ""glitter"" or debris in the pan and fluid color/condition/odor is NOT an indicator of transmission health and should not be used as the…
• 11018451May 12, 2025Engine. 3.6L PSU Long Block Misfire DTC codes and/or rough idle and/or valvetrain noise. Refer to SOL # S2509000004. It is also important to confirm that the vehicle being repaired has the latest calibration/software update for oil pump operation mode (high pressure mode) during engine start up. RU, VF, WL & WD vehicles already include the latest oil pump mode in all 25MY and beyond. 24MY service releases are also available.
• 11017073Apr 16, 2025Steering. "Drag Link Long Socket FOR STEERING SHIMMY DIAGNOSIS, PLEASE REFERENCE S1819000004 Rev. Q AND 19 - Steering / Diagnosis and Testing (IN SERVICE LIBRARY). PLEASE REFER 19 - Steering / Linkage / END, Tie Rod / Diagnosis and Testing IF YOU HAVE BALL JOINT LOOSENESS CONCERN. PLEASE DO NOT REPLACE DRAG LINK AND TIE ROD UNLESS PART HAS VISIABLE DAMAGE OR FREE PLAY EXCEEDS SPECS."
• 11017070Apr 14, 2025Electrical system. "Telematics Box Module Verify Z part number availability. Order a Z part number for all Exchange Orders: warranty, Mopar, customer pay and service contract. Order regular part number for New unsold units only."
• 11016951Apr 11, 2025Other or unknown. FCA Caribbean Warranty Newsletter – Volume 11, Issue 4
• 11016939Apr 9, 2025Other or unknown. Warranty Newsletter – Volume 11, Issue 4
• 11016879Apr 5, 2025Transmission and drivetrain. "850RE D Clutch Repair **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must have at least 11,265 km (7,000 mi.) and exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** ● P0733-00 - Gear 3 Shift Incorrect Ratio. ● P1DA8-00 - Incorrect Gear Ratio Clutch A B or D Defective. ● P1D92-00 - Incorrect Gear Ratio - Clutch 4 Defective. Customers may also…
• 11016617Apr 4, 2025Body and structure, Electrical system. Rear Defogger Solder Terminals Detached.
• 11017491Apr 3, 2025Fuel system. TANK - FUEL
• 11016439Apr 2, 2025Engine. Misfire DTCs, Rough Idle, Valvetrain Noise
• 11016431Apr 2, 2025Body and structure. "Replacement Exterior Mirror Glass Connector Does Not Match For Blind Spot."
• 11016424Apr 2, 2025Body and structure. Exterior Rear View Mirror Stained And Will Not Clean.
• 11016061Mar 28, 2025Transmission and drivetrain. "Transmission For transmission concerns related to DTCs P0733-00, P1DA8-00, and/or P1D92-00, a repair is available, and transmission replacement is NOT required. Please reference TSB 21-009-25 Rev. A, for details on D-clutch replacement. Please also note, fluid color/condition/odor is NOT an indicator of transmission health and should not be used as the reason for unit replacement. Complete unit replacements…
• 11015811Mar 17, 2025Transmission and drivetrain. "D Clutch Repair Kit For transmission concerns related to DTCs P0733-00, P1DA8-00, and/or P1D92-00, a repair is available, and transmission replacement is NOT required. Please reference TSB 21-009-25 Rev. A, for details on D-clutch replacement. Please also note, fluid color/condition/odor is NOT an indicator of transmission health and should not be used as the reason for unit replacement. Complete unit replacements…

← All problems reported for the 2021 Jeep Gladiator