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Service bulletin 2100603A

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 id10003522
Published by NHTSA2003-10-22
Manufacturer's number2100603A
Manufacturer's date2003-08-01
Replaces2100603
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

TRANSMISSION HARSH 4-3 DOWNSHIFT. *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 PACIFICA2004
CHRYSLER PT CRUISER2003
CHRYSLER SEBRING2003, 2004
CHRYSLER TOWN AND COUNTRY2003
CHRYSLER VOYAGER2003
DODGE CARAVAN2003
DODGE INTREPID2003, 2004
DODGE NEON2003
DODGE STRATUS2003, 2004
JEEP GRAND CHEROKEE2003
JEEP LIBERTY2003
JEEP WRANGLER2003

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

Recalls for the same vehicles and component
04V1130002004-03-04. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
18-042-142018-06-18. Service bulletin. Generic Powertrain Control Module (PCM) Procedure This bulletin involves programming a generic PCM with software.
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