Jeep Grand Cherokee 1999 — technical service bulletin
Bulletin 240899 · NHTSA communication 606134 · issued May 14, 1999
Technical service bulletin
communication type
Visibility
component
1999
model years
1
vehicle entries
Official summary
Conditions with whistling sound from heater blower. *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.