Chevrolet Impala 2005–2007 — technical service bulletin
Bulletin 070730012 · NHTSA communication 10021844 · issued Oct 1, 2007
Technical service bulletin
communication type
Power Train
component
2005–2007
model years
8
vehicle entries
Official summary
4t65-e transmission slips, no drive/reverse, tcc shudder, noise with tcc applied. *kb updated 08-15-07. *kb (diagnosis & replace transmission, if necessary). Updated 2/19/08. *nj
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.