Volkswagen Jetta 2018–2019 — technical service bulletin
Bulletin Circular19O3REV2 · NHTSA communication 10168341 · issued Nov 8, 2019
Technical service bulletin
communication type
Engine
component
2018–2019
model years
2
vehicle entries
Official summary
The coolant bottle may leak coolant into the electrical connector for the coolant level sensor. REVISED Updated claiming instructions for connector pin(s) replacement. Added reminder à ¢à  à  when scheduling this repair, please ask the customer to bring all vehicle keys with them to their repair appointment.
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.