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Service bulletins for the 2006 Isuzu NPR

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.

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

By type

By component

By trouble code

Bulletins, newest first
IB13-R-001G2023-06-01. Service bulletin. UNKNOWN OR OTHER. This bulletin outlines the procedures for using the Alpine Exchange Program (the "Exchange Program"). The Exchange Program must be used when any Alpine radio or other component covered by this bulletin is repaired under warranty and may also be used for radio and component repairs not covered under warranty. Contact Alpine directly for pricing and payment methods applicable to radio and component repairs not covered under warranty.
WB13-X-001B2022-08-30. Service bulletin. EQUIPMENT. Isuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural recommendations to improve dealer efficiency when submitting Parts Warranty claims. We strongly recommend dealers follow these procedures in order to avoid delays in Parts Warranty claim payments and/or claim chargeback. This bulletin was revised to add a Parts Warranty Form
WB13-X-001A2022-08-30. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Isuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural recommendations to improve dealer efficiency when submitting Parts Warranty claims. We strongly recommend dealers follow these procedures in order to avoid delays in Parts Warranty claim payments and/or claim chargeback.
IB09-X-004C2022-08-02. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. The Isuzu Commercial Truck of America (ICTA) Service Technical Assistance Center (TAC) provides diagnostic support to Isuzu dealer technicians repairing Isuzu vehicles in and out of vehicle warranty. A TAC case number will be issued solely for information tracking purposes and future contact reference.
IB09-X-002B2022-08-02. Service bulletin. EQUIPMENT. The following is a list of the Isuzu-recommended Threebond product part numbers identified in the various Isuzu Workshop Manuals and bulletins. If a Threebond product is unavailable, we recommend that you utilize the chart below to find equivalent of similar products (when available) from Loctite and Permatex.
IB17J0012021-03-08. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; SUSPENSION. Understanding drive belt noise.
IB-14-X-0012014-11-13. Service bulletin. ENGINE AND ENGINE COOLING. ISUZU: INFORMATION REGARDING CORROSION INHIBITOR IMPROVEMENT THAT CHANGES COLOR OF COOLANT TO A DARK COLOR AND IS ADDED AT PORT TO BOTH RADIATOR AND SURGE TANK. *PE
SB-12-J-0052012-10-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ENGINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. ISUZU (CHEVROLET/GMC): TRUCKS WITH DIESEL ENGINE WOULD HAVE IDLE VIBRATION, TROUBLE STARTING, ENGINE NOT REVVING UP, AND A LACK OF POWER DUE TO POSSIBLE OPERATION CONDITION OF SUCTION CONTROL VALVE (SCV)/FUEL RAIL PRESSURE (FRP) REGULATOR BEING INTERMITTENT. MODELS 2004-2010 CHEVROLET/GMC C, T, W SERIES AND ISUZU F, H, N SERIES. *PE
SB-09-K-0012010-04-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. ISUZU (CHEVROLET/GMC): THE TRANSMISSION SLIPS, WILL NOT SHIFT, OR MAY OVERHEAT. TECHNICIANS MAY FIND DTCS P0894 OR P0218 STORED EITHER CURRENT OR IN HISTORY. THESE CONDITIONS MAY BE CAUSED BY FRICTION MATERIAL DEBONDING FROM THE TORQUE CONVERTER CLUTCH. HARSH OR DELAYED SHIFTS, NO DRIVE, NO REVERSE, SLIPS AND THE SES/MIL MAY BE ILLUMINATED. *PE UPDATED 9/15/10. *PE
IB-09-J-0032009-12-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. ISUZU/CHEVROLET/GMC: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THE FOLLOWING TABLE CONTAINS MANY POSSIBLE CAUSES FOR THE FOLLOWING SYMPTOMS. HARD START/NO START; ROUGH, MISFIRE, UNSTABLE OR INCORRECT IDLE; SURGES, LACK OF POWER, HESITATION, LAG OR STUMBLE. WHILE SOME OF THESE SYMPTOMS MAY LEAD TO COMPONENT REPLACEMENT, THE REPLACEMENT SHOULD NOT BE CONSIDERED A COMPLETED REPAIR. THESE TYPES OF SYMPTOMS HAVE A HIGH PROBABILITY FOR A REPEAT REPAIR SINCE THE TRUE SOURCE OF THE FAILURE IS TYPICALLY FUEL CONTAMINATION. *PE UPDATED 3/23/12. *PE
SB-08-J-0032009-01-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. CHEVROLET, GMC AND ISUZU TRUCKS: LACK OF POWER, ENGINE WILL NOT REV UP, IDLE VIBRATION, ENGINE STARTING CONCERNS, DTCS P1093, P0087, P1087, P0088 AND/OR P1088 SET (DIAGNOSE AND REPLACE SUCTION CONTROL VALVE (SCV) (FUEL PRESSURE REGULATOR (FPR), IF NECESSARY). *PE UPDATED 2/13/09. *PE UPDATED 4/5/10. *PE UPDATED 11/2/11. *PE
0706040212007-10-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LACK OF POWER, ENGINE WILL NOT REV-UP, IDLE VIBRATION, ENGINE STARTING CONCERNS, DTC;S P1093, P0087, P1087, P0088 AND/OR P1088 SET (DIAGNOSE AND REPLACE SUCTION CONTROL VALVE (SCV) (FUEL PRESSURE REGULATOR (FPR)), IF NECESSARY) *NJ
0506930012007-04-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE LOW POWER, WHISTLING-TYPE NOISE FROM ENGINE (REPLACE TURBO TO CHARGE AIR COOLER HOSE CLAMP). *KB
0606040612007-04-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE OIL PRESSURE WARNING LIGHT ILLUMINATED, ENGINE OIL SEEPAGE/LEAKING ONTO GROUND IN EXTREMELY LOW AMBIENT TEMPERATURES (REPLACE PCV HOSE AND BRACKET/INSTALL NEW CATCH TANK COVER). *KB
0506040352006-05-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; FUEL SYSTEM, GASOLINE. USAGE OF E85 FUELS IN GM VEHICLES. 1997 - 2008 ALL GM CARS AND TRUCKS. 1997 - 2008 ALL SATURN VEHICLES. *TT UPDATED. *KB UPDATED ON 10/22/07. *NJ
0507300302006-01-10. Service bulletin. POWER TRAIN. USE OF SHRINK TUBING AROUND TRANSMISSION FLUID LEVEL INDICATOR (DIPSTICK) TUBE JOINT TO AVOID WATER INTRUSION. 2006 AND PRIOR CHEVROLET AND GMC MEDIUM DUTY TILT CAB MODELS AS WELL AS 2006 AND PRIOR ISUZU COMMERCIAL MODELS. *NM
0500900072005-11-09. Service bulletin. ELECTRICAL SYSTEM. USE OF DIELECTRIC LUBRICANT TO PREVENT WATER/MOISTURE INTRUSION INTO WIRING CONNECTORS. *TT UPDATED 03-19-07. 2007 AND PRIOR CHEVROLET W-SERIES MEDIUM DUTY TILT CAB MODELS. 2007 AND PRIOR GMC W-SERIES DUTY TILT CAB MODELS. 2007 AND PRIOR ISUZU N-SERIES COMMERCIAL MODELS. *KB
0506040332005-11-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. MALFUNCTION INDICATOR LAMP (MIL) ON, DTC P0340 (CAMSHAFT POSITION SENSOR) SET. *TT
055552005-09-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. PROGRAM BULLETIN (CUSTOMER SATISFACTION PROGRAM)-AISIN ATF LEVEL GAUGE INCORRECT LENGTH. *SC
200507872005-09-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. ADMINISTRATIVE MESSAGE-VEHICLES EQUIPPED WITH A 4HK1T DIESEL ENGINE AND AISIN AUTOMATIC TRANSMISSION HAVE AN AUTOMATIC TRANSMISSION FLUID (ATF) LEVEL GAUGE WITH AN INCORRECT LENGTH. *SC
030730004B2004-01-05. Service bulletin. POWER TRAIN. REVISION OF AISIN TRANSMISSION QUALITY CENTER (TQC) PROGRAM BEGINNING OCTOBER 1, 2003. *TT
0307300352003-12-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. REPLACEMENT OF OUTPUT FLANGE NUT WHEN SERVICING TRANSMISSION. ALSO INCLUDES 2004 MODELS. *TT

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