Kia Sorento Hybrid 2021–2022 — technical service bulletin
Bulletin TSB_ELE271 · NHTSA communication 10234606 · issued Apr 19, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2021–2022
model years
3
vehicle entries
Official summary
TECHNICAL SERVICE BULLETIN: SERVICE ACTION: INVERTER COOLANT/DEBRIS FLUSHING/REPLACEMENT FOR CLUSTER MESSAGE "REFILL INVERTER COOLANT" (SA515) - This bulletin provides information to flush out the inverter low-conductivity coolant on certain 2021-2022MY Sorento HEV (MQ4 HEV) vehicles produced from September 2, 2020 through September 29, 2021 and Sorento PHEV (MQ4a PHEV) vehicles produced from June 29, 2021 through October 1, 2021, which may exhibit a "Refill inverter coolant" message displayed on the instrument cluster due to poor flow of coolant/antifreeze inside the low-condu
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.