Chevrolet Impala 2004–2005 — technical service bulletin
Bulletin 3853 · NHTSA communication 10020231 · issued Aug 21, 2006
Technical service bulletin
communication type
Service Brakes, Air
component
2004–2005
model years
4
vehicle entries
Official summary
Abs lamp on and current or history dtcs c1223, c1224, c1227, c1228, c1234, and/or c1235. *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.