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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: Cooling system are shown. Show all

Bulletins, newest first
91002122023-10-30. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP. PUMP Water For 2016-2024MY 3.6L Pentastar Upgrade with suspected coolant leak. PRIOR TO PERFORMING ANY WATER PUMP REPLACEMENT, PROCEED WITH INSPECTION INSTRUCTIONS FROM THE LATEST VERSION OF STAR ONLINE PUBLICATION S2307000002. Please submit pictures of the leak area thru the DIDI process outlined in the STAR Online document. NOTE: Some coolant residue may be found at the water pump weep hole plug area which may be normal, but coolant should not be dripping from this location. If unsure about, use the Pressurized Coolant System Inspection process as found in the Dealer Connect Cooling Diagnosis and Testing Procedures.
91000222023-01-09. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. Water Pump For concern of leak at water pump, please check and re-torque water pump inlet tube fasteners as described in Service Bulletin 07-001-22 before replacing the water pump.
S22070000022022-10-31. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. Coolant leak
S22070000022022-10-31. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. Coolant leak
90043762022-10-17. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP. PUMP, Vacuum Prior to replacing the vacuum pumps, please contact or email FCA Redacted Content. If no response in 15 minutes, proceed with repair.
S21140000022022-10-17. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP. CEL (Check Engine Lamp) On Shortly After Filling Vehicle
752672022-05-31. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS; ENGINE AND ENGINE COOLING:COOLING SYSTEM. TUBE - TURBO WATER FEED

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