Cadillac XT4 2019–2022 — technical service bulletin
Bulletin 21NA233 · NHTSA communication 10205562 · issued Nov 12, 2021
Technical service bulletin
communication type
Engine
component
2019–2022
model years
4
vehicle entries
Official summary
This service bulletin advises the technician to order a winter grille cover if not found in vehicle or to install the cover one time.
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.