# P2181 on the 2021 Hyundai Elantra

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P2181

- [11027036](https://open.wenmarpro.com/bulletins/11027036), 2026-01-06: Some Elantra \(CN7, CN7A\), Kona \(OS, SX2\), and Sonata Hybrid \(DN8 HEV\) vehicles equipped with 2.0L engines may illuminate a warning lamp for DTC P218100 \(Cooling System Performance\) related to the Integrated Thermal\-Management Module \(ITM\). Follow the service procedure in this bulletin to install a spring onto the thermostat within the ITM, in order to prevent premature opening, and perform an ECU software update on affected vehicles.