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Service bulletin 2100603

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 id10002046
Published by NHTSA2003-08-12
Manufacturer's number2100603
Manufacturer's date2003-06-20
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

TRANSMISSION HARSH 4-3 DOWNSHIFT ON VARIOUS MODELS INCLUDING THE 2004 PACIFICA, SEBRING, INTREPID AND 2003 SX2.0. *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

Transmission and driveline, Automatic transmission

Vehicles listed
CHRYSLER 300M2003, 2004 (the catalog's model; the bulletin names a series or trim of it)
CHRYSLER CONCORDE2003, 2004
CHRYSLER PT CRUISER2003
CHRYSLER SEBRING2003
CHRYSLER TOWN AND COUNTRY2003
CHRYSLER VOYAGER2003
DODGE CARAVAN2003
DODGE INTREPID2003
DODGE NEON2003
DODGE STRATUS2003, 2004
JEEP WRANGLER2003

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
18-112-162017-11-03. Service bulletin. Flash: Powertrain Diagnostic And System Enhancements (X70 Warranty Extension) This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. The following software enhancement is available: Prevent Catalyst Monitor From Clearing OBD Readiness.
TSB-ER-J182010-04-12. Service bulletin. CHRYSLER DODGE EAGLE SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THE CATALYTIC CONVERTERS ON VEHICLES MAY BECOME DAMAGED FROM CONTINUED OPERATION IN LIMP IN MODE FOLLOWING A CAMSHAFT POSITION SENSOR FAULT. THE POWERTRAIN CONTROL MODULE (PCM) MUST BE REPROGRAMMED (FLASHED) TO PREVENT POTENTIAL CATALYTIC CONVERTER FAILURE. CSC LETTER WAS REC'D. *PE
18029072007-06-15. Service bulletin. GENERIC POWERTRAIN CONTROL MODULE (PCM) PROCEDURE. *KB
08030062007-03-23. Service bulletin. POWERTRAIN CONTROL MODULE INITIALIZATION. *KB
101820042005-04-27. Service bulletin. AFTER INSTALLING THE TRANSMISSION APPLY RTV TO THE ADAPTER SLOT. *EH
08015052005-04-26. Service bulletin. POWERTRAIN CONTROL MODULE INITIALIZATION. *SC
21004052005-02-25. Service bulletin. TRANSMISSION DELAY ENGAGEMENT. *EH
21003052005-02-25. Service bulletin. TRANSFER GEAR WHINE SOUND BETWEEN 68 MPH AND 84 MPH EITHER ACCELERATING OR DECELERATING. *EH
1800604A2004-04-05. Service bulletin. GENERIC POWERTRAIN CONTROL MODULE (PCM) PROCEDURE. *TT *MJ THIS BULLETIN SUPERSEDES BULLETIN 18-006-04A DATED 04/06/2004. *TT
21001042004-04-05. Service bulletin. TRANSMISSION SOLENOID REPLACEMENT. *TT