WenmarOpen by Wenmar Pro

Service bulletins for the 2004 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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
05050032005-05-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. AUTOMATIC TRANSMISSION SHIFT LOCK CONTROL FUNCTION. *EH
05020012005-05-10. Service bulletin. FUEL SYSTEM, OTHER. PERCEIVED FUEL ECONOMY AND DRIVER INFORMATION CENTER SETTING. *EH
05010032005-05-10. Service bulletin. ENGINE AND ENGINE COOLING. NEW SPARK PLUGS AND GAPPING. *EH
05110032005-05-10. Service bulletin. AIR BAGS. PROPER AIR BAG SYSTEM DIAGNOSIS AND SERVICE. *EH
05050022005-05-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. DIAGNOSIS OF CRACK OR BROKEN TRANSMISSION CASE. *EH
05010042005-05-10. Service bulletin. ELECTRICAL SYSTEM. SERVICE ENGINE SOON LIGHT ON DIAGNOSTIC TROUBLE CODE P0483. *EH
05070012005-05-10. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. LUBRICANT OIL LEAK FROM FRONT AREA OF VEHICLE. *EH
05050022005-05-10. Service bulletin. ELECTRICAL SYSTEM. SERVICE ENGINE SOON LIGHT ON DIAGNOSTIC TROUBLE CODE P0741 HARSH SHIFT CRUISE CONTROL INOPERATIVE. *EH
05050012005-05-10. Service bulletin. ELECTRICAL SYSTEM. SERVICE 4WD LIGHT ON 4WD INOPERATIVE HARSH ENGAGEMENT OF 4WD NO COMMUNICATION WITH TCCM DTC C0550 SET. *EH
05040012005-05-10. Service bulletin. ELECTRICAL SYSTEM. VARIOUS INTERIOR ELECTRICAL CONCERNS IP GAUGES LIGHTING INOPERATIVE HVAC CONTROLS INOPERATIVE BLOWER MOTOR INOPERATIVE RADIO INOPERATIVE FLASHER INOPERATIVE. *EH
05010032005-05-10. Service bulletin. ELECTRICAL SYSTEM. SERVICE ENGINE SOON LIGHT ON. *EH
05010022005-05-10. Service bulletin. ELECTRICAL SYSTEM. SERVICE ENGINE SOON LIGHT ON. *EH
0313S0022005-04-22. Service bulletin. UNKNOWN OR OTHER. TRAILER WEIGHT AND GCWR INFORMATION. *TT
0311S0032005-04-22. Service bulletin. UNKNOWN OR OTHER. VEHICLE PAINT CODES. *TT
0505S0022005-04-20. Service bulletin. POWER TRAIN. SERVICE ENGINE SOON (SES) LIGHT ON, DIAGNOSTIC TROUBLE CODE (DTC) P0741, HARSH SHIFT, CRUISE CONTROL INOPERATIVE. *TT
0511S0052005-04-20. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE. LIFTGATE OR LIFTGATE GLASS BINDS, DOES NOT OPEN COMPLETELY, CHMSL HITS ROOF. *TT
0507S0012005-04-18. Service bulletin. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. LUBRICANT/OIL LEAK FROM FRONT AREA OF VEHICLE. *TT
0405230032005-03-08. Service bulletin. SERVICE BRAKES, AIR:DISC:CALIPER. REVISED REAR BRAKE CALIPER BRACKET MOUNTING BOLT FASTENER SPECIFICATION. *EH
0405S0072004-11-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. DIAGNOSTIC INFORMATION ON HARSH 1-2 UPSHIFT. *NM
0402S0042004-11-03. Service bulletin. FUEL SYSTEM, OTHER. VEHICLE IS DIFFICULT TO FILL WITH FUEL OR FILLING STATION PUMP SHUTS OFF BEFORE TANK IS FULL OR FUEL SPITS BACK/OUT WHEN FILLING THE TANK. *TT
0412S0062004-10-19. Service bulletin. EQUIPMENT. POOR HEATER PERFORMANCE 2ND AND 3RD ROW SEATS. *TT
0405S0062004-10-19. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. HARSH GARAGE SHIFT FROM PARK TO DRIVE OR FROM PARK TO REVERSE WITH TRANSMISSION FLUID AT COLD AMBIENT TEMPERATURES. *TT
0411S0042004-10-19. Service bulletin. STRUCTURE:BODY. LIFTGATE GLASS UNLATCHES ON ROUGH/BUMPY ROAD SURFACES. *TT
0410S0022004-10-19. Service bulletin. STEERING. RELEASE OF STEERING GEAR STUB SHAFT BEARING KIT FOR SERVICE. *TT
0405S0082004-10-19. Service bulletin. POWER TRAIN. DIAGNOSTIC INFORMATION ON DIAGNOSTIC TROUBLE CODE P0894 AND P1870. *TT

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