Service bulletins for the 2021 Hyundai Santa Fe
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.
125 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Cooling system are shown. Show all
| 23-01-052H-1 | 2023-08-02. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM; POWER TRAIN. This bulletin provides information related to the cleaning of the cooling system and coolant change to address the following problem: • “Refill Inverter Coolant” warning light displayed on the cluster • No DTC’s present • Normal level of coolant in Inverter Reservoir Tank • Measured EWP Speed > 2,800 RPM The cause of the warning light is due to increased EWP Speed due to poor flow of coolant inside the cooling circuit. The coolant in the system will be discharged and any foreign substances in the circuit will be flushed out with new coolant added in the end. A new reservoir cap label will be added. |
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| 21-EM-012H | 2022-01-08. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. Certain vehicles listed below equipped with 2.5T turbo engines may have a misassembled check valve for the PCV (Positive Crankcase Ventilation) system, resulting in engine oil entering the intake and contaminating the air cleaner. This bulletin describes the procedure to clean the air intake system and replace the PCV check valve and air cleaner. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.