WenmarOpen by Wenmar Pro

Service bulletins for the 2003 Isuzu Ascender

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.

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

By type

By component

By trouble code

Bulletins, newest first
06110032006-04-06. Service bulletin. STRUCTURE:BODY:DOOR. DOOR LATCH FREEZING IN COLD TEMPERATURES. *TT
05140042006-02-15. Service bulletin. UNKNOWN OR OTHER. ELIMINATING UNWANTED ODORS IN VEHICLES. *TT
05110012006-02-15. Service bulletin. SEAT BELTS:FRONT:RETRACTOR. AVOIDING FRONT SEAT BELT RETRACTOR JAMMING WHEN STORING SEAT BELT. *TT
06040012006-02-13. Service bulletin. ELECTRICAL SYSTEM. MALFUNCTION INDICATOR LAMP (MIL) ON CHECK ENGINE LIGHT ON, DTC P0526 SET. *TT
06010012006-02-13. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE OIL LEAK AT REAR COVER ASSEMBLY AREA. *TT
05050072006-01-19. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. DIAGNOSTIC TROUBLE CODE (DTC) P0757 SET, MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED, POOR PERFORMANCE OF TRANSMISSION, TRANSMISSION SLIPPING. *TT
0503S0022006-01-11. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. I/M READINESS AS PART OE EMISSION INSPECTION AND MAINTENANCE PROGRAM FOR OBD II VEHICLES. TO INCLUDE ISUZU I-280 AND I-350 2003 - 2005. *AK
0505S0062006-01-10. Service bulletin. POWER TRAIN. MALFUNCTION INDICATOR LAMP (MIL) ON, TRANSMISSION STUCK IN SECOND OR THIRD GEAR, INSTRUMENT CLUSTER INOPERATIVE (VERIFY AND REPAIR SOURCE OF VOLTAGE LOSS IN TRANSMISSION SOLENOID POWER SUPPLY CIRCUIT. *JB
0505S0122006-01-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 4L60 AUTOMATIC TRANSMISSION DIAGNOSTIC INFORMATION ON HARSH 1-2 UPSHIFT. *JB
005050062006-01-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. MALFUNCTION INDICATOR LAMP (MIL) ON, TRANSMISSION STUCK IN SECOND OR THIRD GEAR, INSTRUMENT CLUSTER INOPERATIVE (VERIFY AND REPAIR SOURCE OF VOLTAGE LOSS IN TRANSMISSION SOLENOID POWER SUPPLY CIRCUIT). *TT
0501S0072006-01-07. Service bulletin. ENGINE AND ENGINE COOLING. INFORMATION ON USE OF KENT MOORE BOLT EXTRACTOR TOOL KIT EN-47702 FOR REMOVING CYLINDER HEAD OR MAIN BEARING CAP BOLTS ON INLINE ENGINES. *AK
05050102005-11-14. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. ENGAGEMENT TIME OF ELECTRONICALLY CONTROLLED 4L60-E TRANSMISSIONS. *TT
04050122005-10-13. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. MALFUNCTION INDICATOR LAMP ON, TRANSMISSION STUCK IN THIRD GEAR, INSTRUMENT CLUSTER INOPERATIVE. *TT
04050112005-10-13. Service bulletin. POWER TRAIN. DELAYED ENGAGEMENT OF FRONT WHEELS DURING A SLIP CONDITION ON MODELS EQUIPPED WITH NEW VENTURE GEAR NVG 126 OR NVG 226 TRANSFER CASE. *TT
05050092005-09-23. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 1-2, 2-3, 3-4 SHIFT AND TORQUE CONVERTER CLUTCH (TCC) CHARACTERISTICS DURING COLD WEATHER OPERATION ON 4L60-E TRANSMISSIONS. TO INCLUDE 2006 ISUZU ASCENDER. *TT
05070022005-09-23. Service bulletin. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. SQUEAK, SQUEAL OR WHISTLE NOISE FROM FRONT. *TT
04090032005-09-23. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP. ABS LIGHT ON, DTCS C0265, C0201, U1041 SET AND/OR LOSS OF COMMUNICATION WITH BRAKE MODULE. *TT
05050052005-09-12. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). SERVICE 4WD LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE (DTC) C0374 SET. *TT
05030032005-09-12. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. REVISED INSPECTION/MAINTENANCE (I/M) EVAPORATIVE EMISSION (EVAP) SYSTEM SET PROCEDURE (SERVICE MANUAL REVISION). *TT
05010062005-09-12. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. UNDERHOOD TICK NOISE AT IDLE. *TT
05080012005-09-01. Service bulletin. WHEELS. INFORMATION ON TIRE RADIAL FORCE VARIATION. TO INCLUDE 2006 ISUZU ASCENDER. *TT
05080022005-09-01. Service bulletin. WHEELS. COLD TIRE CHARACTERISTICS OF THE MANUFACTURER GM ORIGINAL EQUIPMENT TIRES. *TT
05120022005-09-01. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. INTERMITTENT SLOW TO COOL HVAC PERFORMANCE CONCERNS IN HIGH AMBIENT TEMPERATURES AND/OR HIGH HUMIDITY CONDITIONS AFTER START UP, ESPECIALLY AT LOW ENGINE SPEEDS. *TT
05010052005-09-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL LEAK UNDER EXTREME COLD TEMPERATURES. *TT
05060022005-09-01. Service bulletin. SUSPENSION. RATTLE, CLUNK, POP, SNAP NOISE FROM FRONT AND/OR REAR SUSPENSION WHILE DRIVING OVER ROUGH, UNEVEN, WASH BOARD ROAD SURFACES. *TT

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