Chevrolet Impala (GMX 211) 2005–2006 — technical service bulletin
Bulletin 3975 · NHTSA communication 10019842 · issued May 5, 2006
Technical service bulletin
communication type
Service Brakes, Hydraulic
component
2005–2006
model years
4
vehicle entries
Official summary
Intermittent driveability concerns, traction control system warning lamp, service stability system message, service traction system message, diagnostic trouble code b1390, c0236 and/or c0240. *ak
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.