Toyota Supra 2021 — technical service bulletin
Bulletin 12V Li-ion Used · NHTSA communication 10203542 · issued Oct 7, 2021
Technical service bulletin
communication type
Equipment
component
2021
model years
1
vehicle entries
Official summary
12V Li-ion Used Batteries label 10.07.2021
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.