Jeep Grand Cherokee 1999–2000 — technical service bulletin
Bulletin 242499 · NHTSA communication 6089775 · issued Nov 12, 1999
Technical service bulletin
communication type
Visibility
component
1999–2000
model years
2
vehicle entries
Official summary
Concerns with the heater a/c system changing to defrost mode when accelerating. *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.