Buick Lesabre 2003 — technical service bulletin
Bulletin 052303 · NHTSA communication 10003664 · issued May 23, 2003
Technical service bulletin
communication type
Equipment
component
2003
model years
1
vehicle entries
Official summary
Troubleshooting a heater or air conditioning problem. *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.