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Service bulletins for the 2021 Jeep Wrangler

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.

1062 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Wheels are shown. Show all

Bulletins, newest first
S1819000004 REV.R2025-12-11. Service bulletin. WHEELS; STEERING; SUSPENSION. Shimmy Felt In Front End
S2422000001 REV.C2024-11-13. Service bulletin. WHEELS; ELECTRICAL SYSTEM. Tire Pressure Monitor (TPM) Service Information. TPM Lamp On.
S24220000022024-09-24. Service bulletin. WHEELS. Low Tire Pressure. Tire Valve Stem And Tire Pressure Monitor (TPM) Sensor Service.
996592024-09-04. Other. WHEELS. WHEEL - STEEL
91000102023-05-30. Service bulletin. POWER TRAIN; WHEELS. Axle Assembly Do not replace the Axle for Axle Locker Sensor failure. The parts kit (SENSOR KIT, Axle: 68544629A$) must be used to repair the Axle Locker Sensor on JL/JT equipped with the M210 and M220 Tru-Lok axles (DSE).
91000102022-10-31. Service bulletin. POWER TRAIN:AXLE ASSEMBLY; WHEELS; BACK OVER PREVENTION. Axle Assembly A parts kit (SENSOR KIT, Axle: 68544629A$) is available to repair the Axle Locker Sensor on JL/JT equipped with the M210 and M220 Tru-Lok axles (DSE). This parts kit must be used when only the Axle Locker Sensor fails. Do not replace the axle for sensor failure.
90043112022-10-17. Service bulletin. WHEELS. SENSOR, Wheel Speed Please call FCA Redacted Content prior to replacing a rear wheel speed sensor for one of the following fault codes: C003A-1D and or 2F (right rear wss circuit current out of range or signal erratic) C0037-1D and or 2F (left rear wss circuit current out of range or signal erratic) If no response in 15 minutes, proceed with repair.
90044652022-10-17. Service bulletin. WHEELS; BACK OVER PREVENTION. AXLE, Service Rear A new parts kit (SENSOR KIT, Axle: 68544629AA) is available to repair the Axle Locker Sensor on the 2018 - 2022 JL/JT equipped with the M210 and M220 Tru-Lok axles (DSE). This new parts kit must be used when only the Axle Locker Sensor fails.
23023222022-09-26. Service bulletin. BACK OVER PREVENTION; WHEELS. Red Rust On Rear Bumper Bolts This bulletin includes replacing all four bumper bolts. Customers may comment on the following: Red rust is present on the rear bumper bolts equipped with steel bumpers
S21230000042022-07-18. Service bulletin. WHEELS. Front Wheel Well Liner Contacting Tire And Or Loose
0810621A2022-05-31. Service bulletin. ELECTRICAL SYSTEM; WHEELS; ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY. 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 Speed Sensors Supply Circuit Low. C2129-00 - Battery Voltage. U3006-00 - Control Module Input Power "A" Circuit/Open. B2199-16 - Battery Voltage-Circuit Voltage Below Threshold. B21DD-84 - System Voltage-Signal Below Allowable Range. B2199-16 - Battery Voltage-Circuit Voltage Below Threshold. Technicians or customers may also experience one or more of the following:Depleted 12V battery at delivery to dealer. Vehicle will not start.
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
S21230000742021-12-13. Service bulletin. WHEELS. Front Wheel Well Splash Liner Contacting Tire
S21230000042021-02-16. Service bulletin. WHEELS. Front Wheel Well Liner Contacting Tire And Or Loose
90043112020-11-30. Service bulletin. WHEELS; SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR. SENSOR, Wheel Speed Please call FCA Redacted Content prior to replacing a rear wheel speed sensor for one of the following fault codes: C003A-1D and or 2F (right rear wss circuit current out of range or signal erratic) C0037-1D and or 2F (left rear wss circuit current out of range or signal erratic) If no response in 15 minutes, proceed with repair.

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