Volvo XC90 2017–2018 — technical service bulletin
Bulletin TJ33617.2.1-2021 · NHTSA communication 10187398 · issued Jan 26, 2021
Technical service bulletin
communication type
Equipment
component
2017–2018
model years
2
vehicle entries
Official summary
This is a Technical Journal: Front seat heater, function control. If not working check the heating grid wiring.
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.