Chevrolet Avalanche 2008 — technical service bulletin
Bulletin PIP-4424 · NHTSA communication 10026664 · issued Jun 1, 2008
Technical service bulletin
communication type
Power Train
component
2008
model years
11
vehicle entries
Official summary
Gmc: leak from transmission oil cooler line fitting on vehicles built in april or may, 2008. *pe
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.