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Service bulletin 857

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id610644
Published by NHTSA2000-05-09
Manufacturer's number857
Manufacturer's date2000-01-01
NHTSA componentELECTRICAL SYSTEM:IGNITION:MODULE

NHTSA's 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

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Ignition

Vehicles listed
CHRYSLER 300M2000 (the catalog's model; the bulletin names a series or trim of it)
CHRYSLER CONCORDE2000
CHRYSLER LHS2000
DODGE INTREPID2000

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
90042752023-01-09. Service bulletin. KEY, Master If replacing the key/FOBIK on a WJ, KJ, TJ, or PT Cruiser, use the "AC" NIC level part number. The "AB" NIC level will not program to these platforms. For all other platforms, if the "AB" NIC level will not program to the vehicle, use the "AC" NIC level part and submit a part warranty.
90042752022-09-26. Service bulletin. KEY, Master If replacing the key/FOBIK on a WJ, KJ, TJ, or PT Cruiser, use the "AC" NIC level part number. The "AB" NIC level will not program to these platforms. For all other platforms, if the "AB" NIC level will not program to the vehicle, use the "AC" NIC level part and submit a part warranty.