Lincoln LS 2000 — technical service bulletin
Bulletin 7486 · NHTSA communication 610850 · issued Nov 1, 1999
Technical service bulletin
communication type
Visibility
component
2000
model years
1
vehicle entries
Official summary
Some vehicles equipped with dual zone heater / air conditioner system (datc) may exhibit uneven air temperature output; not receiving cool air flow from either side of the datc when both sides are set to cool; and a heater valve that is stuck. *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.