Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSOLDSMOBILE1998AURORA V8-4.0L VIN CREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULESERVICE AND REPAIRENGINE OIL LIFE MONITOR RESET PROCEDURE
1998 Oldsmobile Aurora V8-4.0L VIN C
Engine Oil Life Monitor Reset Procedure
1998 Oldsmobile Aurora V8-4.0L VIN CSECTION Engine Oil Life Monitor Reset Procedure
Reset Procedure
The Fluid Life Indexes are calculated by the PCM. The PCM uses many engine parameters to determine the percentage of fluid life remaining for the engine oil and transaxle fluid. The fluid life indexes are stored in the EEPROM of the PCM. When the PCM is disconnected from power these indexes will remain in memory. The indexes may not get stored if the PCM is disconnected from power within 30 seconds of the ignition being switched to OFF. The engine oil life index can be reset with a scan tool and with the reset function of the Driver Information Center (DIC). The DIC can reset engine oil life only to 100 percent. A scan tool can reset engine oil life in 10 percent increments. The transaxle fluid life index can be reset with the reset function of the DIC.
The Fluid Life Indexes are calculated by the PCM. The PCM uses many engine parameters to determine the percentage of fluid life remaining for the engine oil and transaxle fluid. The fluid life indexes are stored in the EEPROM of the PCM. When the PCM is disconnected from power these indexes will remain in memory. The indexes may not get stored if the PCM is disconnected from power within 30 seconds of the ignition being switched to OFF. The engine oil life index can be reset with a scan tool and with the reset function of the Driver Information Center (DIC). The DIC can reset engine oil life only to 100 percent. A scan tool can reset engine oil life in 10 percent increments. The transaxle fluid life index can be reset with the reset function of the DIC.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.