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Service bulletins for the 2005 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.

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

By type

By component

By trouble code

Bulletins, newest first
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
05110042005-08-16. Service bulletin. EXTERIOR LIGHTING. EXTERIOR LAMP CONDENSATION AND REPLACEMENT GUIDELINES. *TT
05040032005-08-16. Service bulletin. ELECTRICAL SYSTEM. DIAGNOSTIC INFORMATION ON HEADLAMPS FLICKER OR MOMENTARILY DIM WHILE DRIVING. *TT DIAGNOSTIC INFORMATION TO CLARIFY EFFECT OF SECONDARY AIR INJECTION SYSTEM ON HEADLAMP FLICKER. *TT
05050072005-08-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). GUIDELINES FOR REPLACEMENT OF TRANSFER CASE CONTROL MODULE (TCCM). *TT
05100012005-07-08. Service bulletin. STEERING. STEERING SYSTEM MOAN, GROAN, SHUDDER AND/OR VIBRATION TYPE NOISE DURING LOW SPEED TURNING MANEUVERS. *TT
05110022005-07-08. Service bulletin. STRUCTURE:BODY. THE CENTER HIGH-MOUNT STOP LAMP (CHMSL) APPLIQUE IS LOOSE ON THE LIFT-GATE GLASS. *TT
05130022005-05-10. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. BUZZ TYPE NOISE COMING FROM REAR SPEAKERS. *EH
05110032005-05-10. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES. OUTSIDE REARVIEW MIRROR VIBRATION. *EH
05110082005-05-10. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW. RECONNECTION OF REAR WINDOW DEFROSTER CONTACT OR TAB. *EH
05110022005-05-10. Service bulletin. STRUCTURE:BODY:DOOR. DOOR HARD TO CLOSE. *EH
05130022005-05-10. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. COMPACT DISC PLAYER SKIPPING INOPERATIVE SLUGGISH AND OR LONG SEARCH TIMES. *EH
05130012005-05-10. Service bulletin. ELECTRICAL SYSTEM. ERROR CODES ON RADIO DISPLAY THEIR CAUSE AND CORRECTIVE ACTION. *EH
05120022005-05-10. Service bulletin. ELECTRICAL SYSTEM. AUTOMATIC DUAL ZONE HVAC BATTERY DRAW. *EH
05120012005-05-10. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. INTERMITTENT A/C PERFORMANCE CONCERNS IN HIGH AMBIENT TEMPERATURES AND OR HIGH HUMIDITY CONDITIONS ESPECIALLY AT LOW ENGINE SPEEDS. *EH FINAL RELEASE. *TT
05110022005-05-10. Service bulletin. VISIBILITY:GLASS, SIDE/REAR. DISTORTIOPN IN OUTER SURFACE OF VEHICLE GLASS. *EH
05050042005-05-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SHIFT STABILIZATION FEATURE FOR HYDRAMATIC 4L60E TRANSMISSION. *EH
05050022005-05-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. DIAGNOSIS OF CRACK OR BROKEN TRANSMISSION CASE. *EH
05050032005-05-10. Service bulletin. ENGINE AND ENGINE COOLING. THROTTLE TIP IN CLUNK NOISE AT LOW SPEEDS. *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
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
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

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