Hyundai Sonata 2018 — technical service bulletin
Bulletin 5NP-L2K7X-05 · NHTSA communication 10138239 · issued Apr 2, 2018
Technical service bulletin
communication type
Power Train
component
2018
model years
1
vehicle entries
Official summary
If you are servicing a vehicle with a harsh and/or delayed shift, use the GDS as shown in the Service Procedure to measure shift engagement time.
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.