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Service bulletins for the 1999 Mitsubishi Galant

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.

109 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Transmission control module are shown. Show all

Bulletins, newest first
02130152002-10-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). SUBJECT REGARDING POWERTRAIN CONTROL MODULE REPROGRAMMING FOR COLD ENGINE MISFIRE. *JG
TSB01000082001-07-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). MITSUBISHI MOTORS DEALERS WHO HAVE THE MEDIC SYSTEM CAN REPROGRAM THE RED ROM PACK USED FOR REFLASHING VARIOUS VEHICLE'S PCMS. *TT
481999-08-30. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). INFORMATION ON REPROGRAMMING PASSWORD FOR HARSH 3-2 DOWNSHIFT AND DIAGNOSTIC TROUBLE CODE (DTC) P0120. *TT

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.