Service bulletins for the 2008 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.
68 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| PIC4310J | 2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Technician will need to call General Motors Technical Assistance Center with the scan tool data from the OnStar system. |
|---|---|
| PIP5163A | 2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about engine block of possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or blow by. Technician will need to inspect the engine for Cylinder damage or scoring, An out of round cylinder bore, Dirt intrusion, and Catalytic Converter failure. |
| PIC5953 | 2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about vehicles that may have an issue when using Bluetooth voice recognition with an iPhone. Technician should work with the customer to insure the phone contacts to not have any Emojis loaded to any contact. |
| PIP5029G | 2017-05-16. Service bulletin. ENGINE. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT HAVE A MALFUNCTION INDICATOR LAMP ON OR ENGINE MISFIRE, ROUGH IDLE, EXTENDED CRANK, OR CRANK NO START IN SOME CASES. TECHNICIAN WILL NEED TO PERFORM PUBLISHED SERVICE INFORMATION DIAGNOSTICS. IF TECHNICIAN FINDS CARBON, AN UPPER ENGINE AND VALVE CLEANING SHOULD BE PERFORMED. |
| PIC5491J | 2017-04-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT HAVE AN ONSTAR SYSTEM THAT WILL NOT POWER UP. TECHNICIAN SHOULD TURN OFF THE IGNITION AND CANCEL RETAINED ACCESSORY POWER. AFTER THE VEHICLE HAS POWERED DOWN REMOVE POWER TO THE ONSTAR MODULE FOR FIVE MINUTES. AFTER THE POWER HAS BEEN REMOVED FOR FIVE MINUTES, IF THE ONSTAR SYSTEM IS WORKING RELEASE THE VEHICLE. IF THE ONSTAR SYSTEM IS STILL INOPERATIVE CONTINUE WITH PUBLISHED SERVICE INFORMATION DIAGNOSTICS. |
| PIP5226A | 2017-03-21. Service bulletin. EQUIPMENT. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT FINDING NEEDLE BEARINGS DURING AN OIL CHANGE. TECHNICIAN WILL GAIN ACCESS TO THE ROLLER ROCKERS TO INSPECT THEM. ONLY REPLACE THE ROLLER ROCKER THAT IS MISSING NEEDLE BEARINGS. BE SURE TO CLEAN THE OIL DRAINS TO RETRIEVE THE NEEDLE BEARINGS. EACH ROLLER ROCKER HAS 66 BEARINGS. |
| PIC3278F | 2017-03-14. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THE STEPS NEEDED TO DIAGNOSE AND REPAIR THE VEHICLES THAT MAY HAVE UNWANTED OR PHANTOM PHONE CALLS. TECHNICIAN WILL NEED TO DETERMINE WHAT TYPE OF CALL THE CUSTOMER IS HAVING THAT IS UNWANTED. THE VEHICLE MAY RECEIVE AN INCOMING CALL JUST LIKE ANY OTHER PHONE. TYPICALLY THE CUSTOMER WILL HEAR THE PHONE RINGING IN THE VEHICLE. THIS SCENARIO ALSO INCLUDES INCOMING BLUETOOTH CALLS. ONE TYPE OF UNWANTED CALL CAN BE MADE IF THE KEY PAD IS FAULTY THE ONSTAR SYSTEM WILL TRY TO MAKE A BLUE BUTTON CALL FOR SHORTED VOLTAGE IN THE CIRCUITS. THE ONSTAR MODULE COULD HAVE AN INTERNAL FAULT AND PRODUCE A PHONE UNAVAILABLE AUDIO MESSAGE ALSO IT MAY HAVE A DIAGNOSTIC TROUBLE CODE U1500 OR B1000. REFER TO DIAGNOSTICS FOR THE DIAGNOSTIC TROUBLE CODE MAKING SURE TO FOLLOW ANY APPLICABLE BULLETINS OR PRELIMINARY INFORMATION SHEETS. A GREADYH OR GONSTAR READYH AUDIO MESSAGE HEARD WHILE DRIVING. IN SOME CASES IT HAS BEEN FOUND THAT THE CUSTOMER IS INADVERTENTLY PRESSING THE PUSH TO TALK BUTTON ON THE STEERING WHEEL CONTROLS. ON RARE OCCASIONS, OTHER ISSUES IN THE STEERING COLUMN OR STEERING WHEEL CONTROL SYSTEM MAY INDUCE THIS CONCERN. |
| SB-11-01-S001 | 2011-09-28. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. ISUZU: 2008 ASCENDER. IT MAY DEVELOP A CRACK IN THE EXHAUST MANIFOLD WHICH WILL CAUSE INCREASED EXHAUST NOISE. *RM |
| 396 | 2008-06-10. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER. SERVICE STABILITRAK INDICATOR ILLUMINATED DTC C0131. *NJ |
| 191 | 2008-01-31. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. ABS, RED BRAKE, SVC AND 4WD LIGHT ON, HVAC BLOWER INOPERATIVE. *NJ |
| 96 | 2008-01-31. Service bulletin. ELECTRICAL SYSTEM:WIRING. DTC C0327 WITH OR WITHOUT ADDITIONAL DTC'S SETTING. WITH 4WD. *NJ |
| 0704004 | 2008-01-23. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR. ABS LIGHT ON, DTC C0040 STORED. *NJ |
| 0704003 | 2008-01-19. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). ERRATIC SPEEDOMETER OPERATION OR SPEEDOMETER NEEDLE SHAKES ABOVE 60 MPH. *NJ |
| 0711015 | 2007-10-30. Service bulletin. LATCHES/LOCKS/LINKAGES:HATCHBACK/LIFTGATE:LOCK. REAR LIFTGATE GLASS MAY NOT LOCK WHEN USING REMOTE KEYLESS ENTRY (RKE) KEY FOB TRANSMITTER/DOOR LOCK SWITCH, LIFTGATE HATCH OR LIFTGATE GLASS MAY LOCK/UNLOCK WHEN REAR LIFTGATE GLASS BUTTON DEPRESSED. *NJ |
| 0511001 | 2007-10-30. Service bulletin. EQUIPMENT:OTHER:LABELS. CENTER HIGH-MOUNT STOP LAMP (CHMSL) APPLIQUE LOOSE. *NJ |
| 0714002 | 2007-10-04. Service bulletin. UNKNOWN OR OTHER. PASS-THRU PROGRAMMING ONLY FOR 2008 MODEL YEAR. *NJ |
| 0705004 | 2007-09-12. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. INFORMATION ON 2-3 UP-SHIFT OR 3-2 DOWNSHIFT CLUNK NOISE IS HEARD. *KB |
| 0712003 | 2007-09-12. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. INSPECTING RADIATOR AND HEATER HOSE CLAMPS AND SEALS FOR LEAKS DURING PRE-DELIVERY INSPECTION. *KB |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.