Buick Riviera 1997–1998 — technical service bulletin
Bulletin 971101738125 · NHTSA communication 54204 · issued Nov 1, 1997
Technical service bulletin
communication type
Structure
component
1997–1998
model years
4
vehicle entries
Official summary
Subject on parallel park assist mode and both mirrors are inoperative or rh mirror moves up too high. *yc
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.