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Service bulletins for the 2021 Jeep Gladiator

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

700 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
820082022-05-31. Service bulletin. EQUIPMENT. Warranty Operations Newsletter Volume 8, Issue 2
S22080000852022-05-31. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. No Start, ABS Module Has No Communication, Stop/Start Inoperative
S22080000842022-05-31. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). ESC (Electronic Stability Control) Lamp On, DTC C121C-00-TORQUE REQUEST SIGNAL DENIED
S2118000015 RevB2022-05-31. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P0403 ? EGR Control Circuit Open, Set.
S2108000137 RevA2022-05-31. Service bulletin. ELECTRICAL SYSTEM; TRACTION CONTROL SYSTEM; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT; ENGINE AND ENGINE COOLING. (CEL) Check Engine Lamp, (ABS) Anti-Lock Brake System, And (TCS) Traction Control System Lamps On
S22230000292022-05-31. Service bulletin. STRUCTURE:BODY:DOOR; STRUCTURE. Rattle Noise From Door
S22180000072022-05-31. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; ENGINE AND ENGINE COOLING. The customer?s complaint may include a MIL or check engine lamp-on condition. The customer may also complain of a lack of power (vehicle potentially in limp-mode). Upon further investigation, a fault code for P2100 - ELECTRONIC THROTTLE CONTROL MOTOR CIRCUIT along with other fault codes may be set in the PCM.
S22080000732022-05-31. Service bulletin. ELECTRICAL SYSTEM. No Start, After Flash And Or PCM Replace, DTC P0513 Invalid Skim Key Setting
S22080000752022-05-31. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE. Check Engine Light Is On, No Start. DTC?s P00FD, P0562, P26F3
S1708000118 RevB2022-05-31. Service bulletin. ELECTRICAL SYSTEM. Battery Drain Concern, Dual USB Port Normal Operational Draw, Extended Illumination Or Extended Operation After Key Off
S22080000682022-05-31. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. ?Device Not Supported? Message on the radio screen
05-006-212021-12-13. Service bulletin. PARKING BRAKE; WHEELS; SERVICE BRAKES. Rear Caliper Adapter Bolts Are Loose Or Missing This bulletin includes replacing all four rear caliper adapter bolts if loose or missing. Customers may comment on one or more of the following:Click or clunk from the rear of the vehicle. A missing or loose rear brake caliper adapter boltFig. 1.Missing And Loose Caliper Adapter Bolts
S21230000792021-12-13. Service bulletin. STRUCTURE:BODY:DOOR; BACK OVER PREVENTION; VEHICLE SPEED CONTROL. Wind Noise And Or Water Leak From Door Seal Area
S2109000005 Rev.2021-12-13. Service bulletin. ENGINE AND ENGINE COOLING. Issue is engine cover not installed from the factory.
90044472021-12-13. Service bulletin. ENGINE AND ENGINE COOLING. COVER, Engine 2021 JL / JT Engine Cover Removal - Dealer notification for removal of cover. Please note that the Aesthetic Engine Cover (05281562AC) has been removed on ALL JL/JT 3.6L Vehicle Configurations. Please note that a lack of engine cover matches engineering release. The engine cover will no longer be included on any 3.6L models of the JL/JT. Additionally, please note that it is OK to proceed to vehicle sale with the related front and rear engine cover brackets (05281948AB, 05281949AB) is OK. Brackets are not required to be removed prior to vehicle sale and will be removed from future vehicle builds. Please note that any dealer attempt to add an engine cover, or remove related bracketry, will be subject to dealer charge back for the associated costs.
08-089-212021-06-28. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT. UGA and UGG Radio Enhancements This bulletin involves inspecting and if required updating the radio software to 2036.08. Customers may experience one or more of the following: Screen flickering. Carplay audio does not always resume. Battery Save vs. Battery Charge toggles back to Battery Charge after sleep cycle. When ?Charge Now? is selected on key-off outside of the charging schedule, it does nothing. In addition, the following software updates are also available:Apple® certification enhancements. Google® certification enhancements.
08-088-212021-06-28. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS. Radio Enhancements This bulletin involves updating the radio software level to 2036.06. Customers may experience the following:Product plan UUID is not correct in Carplay®. Carplay audio does not always resume. Battery save vs. Battery Charge toggles back to Battery Charge after sleep cycle. When ?Charge Now? is selected on key-off outside of the charging schedule ? it does nothing. In addition, the following enhancements are included:Update power supply source from 1 amp to 2.1 amps. GOOGLE® certification enhancements - screen flickers
24-007-212021-06-28. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; ELECTRICAL SYSTEM; VISIBILITY. Flash: HVAC Diagnostic and System Updates This bulletin involves reprogramming the HVAC control module with the latest available software. The customer may notice one or more of the following:Intermittent change of smell or humidity level in vehicle. An intermittent blast of warm air when A/C is on. Intermittent increase of outside air through the HVAC system. In addition, the following software enhancement is also available:Improvements for customer concerns of 'cabin too warm', specifically in the mid ambient temperature range 4.5-15.5 °C (40-60 °F).
S21080001322021-06-28. Service bulletin. FORWARD COLLISION AVOIDANCE. ACC (Adaptive Cruise Control), FCW (Forward Collison Control) FFCM (Forward Facing Camera Module), DASM (Driver Assistance System Module) Does Not Calibrate
S2108000127 Rev.2021-06-28. Service bulletin. EQUIPMENT. Radio Reboot Continually
S21080001302021-06-28. Service bulletin. EQUIPMENT. Bubbles Or Delamination On The Radio Display
S21080001272021-06-28. Service bulletin. EQUIPMENT. Radio Reboot Continually
S21180000092021-06-28. Service bulletin. ENGINE AND ENGINE COOLING. Customer complains of a MIL-on condition. Upon further inspection, there is a Diagnostic Trouble Code (DTC) P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) set in the PCM.
S21080001202021-06-28. Service bulletin. EQUIPMENT. Radio Volume Uncontrollable Or Changing On Its Own
S21080001182021-06-28. Service bulletin. VISIBILITY. Power Mirrors Are Inoperative

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.