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P1820 on the 2011 Kia Sorento

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.

This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.

Bulletins for this model year that name P1820
TSBCHA0472017-01-31. Service bulletin. TSB: AWD SYSTEM HYDRAULIC ACTUATOR REPLACEMENT - THIS BULLETIN PROVIDES THE PROCEDURE FOR REPLACEMENT OF THE HYDRAULIC ACTUATOR OF SOME ALL-WHEEL DRIVE (AWD) EQUIPPED 2011~2016MY SPORTAGE (SL) VEHICLES, PRODUCED FROM MAY 6, 2010 THROUGH FEBRUARY 19, 2013 AND SOME AWD EQUIPPED 2011~2015MY SORENTO (XMA) VEHICLES, PRODUCED FROM OCTOBER 24, 2009 THROUGH DECEMBER 11, 2014, WHICH MAY EXHIBIT AN INOPERATIVE AWD SYSTEM WITH THE MALFUNCTION INDICATOR LAMP (MIL) ON AND DTCS P1820/1821/1822/1823/1824 (ACTIVE OR IN HISTORY). TO CORRECT THIS CONCERN, REPLACE THE AFFECTED HYDRAULIC ACTUATOR BY REFERRING TO THE APPLICABLE SERVICE PROCEDURE ON KGIS.

1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.