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Service bulletins for the 2021 Jeep Grand Cherokee

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.

1325 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Trailer hitch are shown. Show all

Bulletins, newest first
91000192023-01-23. Service bulletin. SERVICE BRAKES; TRAILER HITCHES. Mopar trailer brake controller.
91000162023-01-09. Service bulletin. TRAILER HITCHES. WL trailer tow lighting kit No trailer tow sales codes are required to be added to the vehicle with use of this kit. If sales code XF2 is added to vehicle a DTC error maybe a result.
S21080002052023-01-09. Service bulletin. ELECTRICAL SYSTEM; TRAILER HITCHES. Mopar Trailer Tow Module Kit Sales Incorrect Sales Code And/Or CAN IHS Wiring Incorrect Connector Cavities
91000162022-10-31. Service bulletin. EXTERIOR LIGHTING; TRAILER HITCHES. WL trailer tow lighting kit No trailer tow sales codes are required to be added to the vehicle with use of this kit. If sales code XF2 is added to vehicle a DTC error maybe a result.
91000162022-10-31. Service bulletin. TRAILER HITCHES. WL trailer tow lighting kit No trailer tow sales codes are required to be added to the vehicle with use of this kit. If sales code XF2 is added to vehicle a DTC error maybe a result.
S21080002052022-10-17. Service bulletin. TRAILER HITCHES; ELECTRICAL SYSTEM. Mopar Trailer Tow Module Kit Sales Incorrect Sales Code And/Or CAN IHS Wiring Incorrect Connector Cavities
S21080002052022-09-26. Service bulletin. ELECTRICAL SYSTEM; TRAILER HITCHES; ELECTRICAL SYSTEM:WIRING. Mopar Trailer Tow Module Kit Sales Incorrect Sales Code And/Or CAN IHS Wiring Incorrect Connector Cavities
S21080002052022-09-15. Service bulletin. ELECTRICAL SYSTEM; TRAILER HITCHES. Mopar Trailer Tow Module Kit Sales Incorrect Sales Code And/Or CAN IHS Wiring Incorrect Connector Cavities
S21080002052022-08-22. Service bulletin. ELECTRICAL SYSTEM; TRAILER HITCHES. Mopar Trailer Tow Module Kit Sales Incorrect Sales Code And/Or CAN IHS Wiring Incorrect Connector Cavities
90044092022-08-22. Service bulletin. TRAILER HITCHES. 2021 Mopar WL NAFTA trailer tow wiring kit In the vehicle reconfigure process on page 3 of I sheet K6863106 the incorrect sales code (AHC) is listed and needs to be replaced (with XF2).
S2108000205 RevA2022-05-31. Service bulletin. TRAILER HITCHES; EQUIPMENT; ELECTRICAL SYSTEM. Mopar Trailer Tow Module Kit Sales Incorrect Sales Code And/Or CAN IHS Wiring Incorrect Connector Cavities
90044092021-12-13. Service bulletin. TRAILER HITCHES. 2021 Mopar WL NAFTA trailer tow wiring kit In the vehicle reconfigure process on page 3 of I sheet K6863106 the incorrect sales code (AHC) is listed and needs to be replaced (with XF2). Correct pinout illustration in step 47 of I sheet K6863106. This current I sheet illustration highlights cavity 16 and 26 which is incorrect. The cirucuits in the harness are labeled 17 and 27 and are correctly labeled, these circuits will not fit in 16 and 26.
S2123000010 Rev.2021-04-26. Service bulletin. TRAILER HITCHES. Vehicle Sway At Very Low Speed While Being Flat Towed Behind A RV

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