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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.

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Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
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
05130032005-05-10. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. ONSTAR SYSTEM INOPERATIVE ONSTAR SYSTEM STATUS LIGHT IS RED RADIO LOCKED IN PHONE MODE OR DTC B1000. *EH
05030012005-05-10. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. REVISED INSPECTION MAINTENANCE EVAPORATIVE EMISSION SYSTEM SET PROCEDURE. *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
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
0312S0012005-04-22. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. A/C INOPERATIVE/INTERMITTENT, A/C BLOWS WARM AIR. *TT
0412S0062004-10-19. Service bulletin. EQUIPMENT. POOR HEATER PERFORMANCE 2ND AND 3RD ROW SEATS. *TT
0413S0012004-07-30. Service bulletin. EQUIPMENT:ELECTRICAL. UTILIZING TECH 2 TO RETRIEVE PART NUMBER FOR RADIOS, COMPACT DISC (CD) CHANGERS AND INSTRUMENT PANEL CLUSTERS (IPC). *TT
0412S0012004-05-07. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. REVISED MODE ACTUATOR REPLACEMENT PROCEDURE (SERVICE MANUAL REVISION). *TT
0412S0042004-05-07. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. REAR HEATER & AIR CONDITIONING (A/C) PIPE REPLACEMENT/REPAIR. *TT
0412S0032004-05-07. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. J44551 AIR CONDITIONER SUCTION SCREEN KIT REPAIR RECOMMENDATIONS AND PROCEDURES AFTER COMPRESSION FAILURES. *TT
0412S0022004-04-16. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. CERTAIN HVAC CONTROL HEAD MODULES ARE NOT REPROGRAMMABLE. *TT
0301390132004-03-02. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. REVISED MODE ACTUATOR REPLACEMENT PROCEDURE. *TT
0304S0042003-12-16. Service bulletin. EQUIPMENT. REMOTE KEYLESS ENTRY INOPERATIVE. *TT
03V2692003-10-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. CERTAIN VEHICLES FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD 225 CHILD RESTRAINT ANCHORAGE SYSTEM BECAUSE THE OWNER'S MANUAL DOES NOT INCLUDE THE LOCATION SYMBOLS FOR THE LOWER UNIVERSAL ANCHORAGE SYSTEM OR EXPLAIN THE MEANING OF THE SYMBOLS. *TT
0304S0012003-10-03. Service bulletin. EQUIPMENT:ELECTRICAL. REMOTE KEYLESS ENTRY OPERATIONAL CHARACTERISTICS. *TT
0312S0012003-10-03. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. DIAGNOSING POOR AIR CONDITIONER PERFORMANCE, AIR CONDITIONER STOPS BLOWING COLD, AIR CONDITIONER CYCLES ON AND OFF. *TT

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