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Service bulletin 1800403A

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 id10001098
Published by NHTSA2003-04-15
Manufacturer's number1800403A
Manufacturer's date2003-02-28
Replaces1800403
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

MALFUNCTION INDICATOR LAMP ILLUMINATED AND THE TRANSMISSION MAY OPERATE IN IT'S DEFAULT MODE OF SECOND GEAR. *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
JEEP GRAND CHEROKEE2002, 2003

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
08030062007-03-23. Service bulletin. POWERTRAIN CONTROL MODULE INITIALIZATION. *KB
08015052005-04-26. Service bulletin. POWERTRAIN CONTROL MODULE INITIALIZATION. *SC
21008032003-11-11. Service bulletin. HIGH SPEED GRUMBLE SOUND. *TT
2100503A2003-10-24. Service bulletin. DELAYED OR TEMPORARY LOSS OF TRANSMISSION ENGAGEMENT AFTER INITIAL START UP ON VARIOUS MODELS INCLUDING THE 2004 PACIFICA, SEBRING CONVERTIBLE, SEBRING SEDAN, INTREPID AND 2003 SX2.0. *TT
21009032003-10-23. Service bulletin. AUTOMATIC TRANSMISSION DIAGNOSTIC TEARDOWN PROCEDURE. VARIOUS MODELS INCLUDING THE 2004 RAM TRUCK, DURANGO, SEBRING CONVERTIBLE, CHEROKEE, VISION, NEON, AND VOYAGER. *TT *SC
21007032003-10-22. Service bulletin. NEW FASTENERS TO PREVENT POSSIBLE 42RLE TRANSMISSION FLUID WEEPAGE. *TT
2100603A2003-10-22. Service bulletin. TRANSMISSION HARSH 4-3 DOWNSHIFT. *TT
072003-04-15. Service bulletin. RECOMMENDED STEPS TO CONFIRM THE SAFE AND PROPER ENGAGEMENT OF THE PARK POSITION ON THE VEHICLE'S AUTOMATIC TRANSMISSION. *TT
18004032003-04-14. Service bulletin. MALFUNCTION INDICATOR LAMP ILLUMINATION AND THE TRANSMISSION MAY OPERATE IN ITS DEFAULT MODE OF SECOND GEAR. *TT
02026A2003-04-03. Service bulletin. THE TRANSMISSION MAY OVERHEAT DUE TO A RESTRICTION IN THE TORQUE CONVERTER DRAIN BACK VALVE AND MAY CAUSE DAMAGE TO THE TRANSMISSION. *TT