Volvo XC40 2019–2021 — technical service bulletin
Bulletin TJ35578.1.0-2020 · NHTSA communication 10178507 · issued Jul 14, 2020
Technical service bulletin
communication type
Electrical System
component
2019–2021
model years
3
vehicle entries
Official summary
This is a Technical Journal: Start/stop, changed behavior after software upgrade
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.