Hyundai Sonata Hybrid 2011–2015 — technical service bulletin
Bulletin 21-01-036H · NHTSA communication 10201466 · issued Aug 3, 2021
Technical service bulletin
communication type
Equipment
component
2011–2015
model years
5
vehicle entries
Official summary
2011-2015MY Sonata Hybrid (YF HEV) vehicles Onboard Refueling Vapor Recovery (ORVR) system may exceed its capacity in certain situations. This bulletin provides the procedure to install an Auxiliary Canister to increase the ORVR system capacity. There are no drivability concerns associated with this condition.
Vehicles covered
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.