Chrysler 300M 2000 — technical service bulletin
Bulletin 857 · NHTSA communication 610644 · issued Jan 1, 2000
Technical service bulletin
communication type
Electrical System
component
2000
model years
4
vehicle entries
Official summary
On some vehicles, the powertrain control module may intermittently cause the vehicle theft alarm not to function after the vehicle has been turned off and the doors are locked; the automatic temperature control system may exhibit poor a/c performance; or the temperature display on the overhead travel information system may be slow to update after the vehicle has been started. *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.