Jeep Grand Cherokee 1999–2001 — technical service bulletin
Bulletin 0300302A · NHTSA communication 10000324 · issued Oct 28, 2002
Technical service bulletin
communication type
Power Train
component
1999–2001
model years
3
vehicle entries
Official summary
Customer may complain of a high-pitched rear axle whine sound coming from rear of vehicle. *tt
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.