Buick Rainier 2002–2006 — technical service bulletin
Bulletin 3204B · NHTSA communication 10017413 · issued Nov 7, 2005
Technical service bulletin
communication type
Service Brakes, Hydraulic
component
2002–2006
model years
16
vehicle entries
Official summary
Installation of an aftermarket trailer brake module. *tt
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.