Service bulletins for the 1998 Isuzu Trooper
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.
26 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Automatic transmission are shown. Show all
| 0305S001 | 2003-06-25. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. TRANSMISSION INDICATOR LIGHT MAY BE ON AND DIAGNOSTIC TROUBLE CODE P1870 IS SET IN THE POWERTRAIN CONTROL MODULE (PCM). *TT |
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| 0205S003 | 2003-04-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. TRANSMISSION INDICATOR LIGHT MAY BE ON AND DIAGNOSTIC TROUBLE CODE P1870 IS SET IN THE PCM (POWERTRAIN CONTROL MODULE). *TT |
| IB0004S005 | 2001-01-28. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). THIS BULLETIN PROVIDES INFORMATION ON THE P1640 AND P1650 OUTPUT DRIVE CODES WHICH REFER TO OUTPUT DRIVER CIRCUIT CONDITIONS RELATED TO THE PCM. *TT |
| SB9805L003 | 2001-01-28. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT. ON SOME VEHICLES UP TO VIN W7907635, THE FRONT AND REAR OUTPUT FLANGE LOCK NUTS OF THE TORQUE-ON-DEMAND (TOD) 4-WD SYSTEM TRANSFER CASE MIGHT BE WITHOUT STAKING. IN SUCH CASES, THERE IS A POSSIBILITY THAT THE LOCK NUT MAY LOOSEN, RESULTING IN SEPARATION OF THE PROPELLER SHAFT RENDERING THE VEHICLE INOPERATIVE. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.