Hyundai Sonata 2020 — technical service bulletin
Bulletin Campaign T4J Dea · NHTSA communication 10170514 · issued Dec 20, 2019
Technical service bulletin
communication type
Service Brakes
component
2020
model years
1
vehicle entries
Official summary
Hyundai is conducting a Service Campaign to inspect, and if necessary, re-route the main harness adjacent to the brake booster of certain 2020MY Sonata (DN8) vehicles.
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.