Chevrolet Venture 1997 — technical service bulletin
Bulletin 731102 · NHTSA communication 52602 · issued Mar 1, 1997
Technical service bulletin
communication type
Visibility
component
1997
model years
3
vehicle entries
Official summary
Loss of hvac modes (route vacuum line insidethe frame rail). *tw
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.