Suburban 1/2 Ton 2WD V8-5.3L VIN T (2004)
Oil Change Reminder Lamp: All Technical Service Bulletins
Instruments - Oil Life Monitoring System
Bulletin No.: 04-06-04-045
Date: June 22, 2004
INFORMATION
Subject:
Oil Life Monitoring System - PCM Reset
Models:
2004 All GM Passenger Cars and Trucks
Important:
The Oil Life Monitoring System can be found on many General Motor's vehicles prior to 2004. Refer to SI and/or the Owner's Manual for detailed
information.
The purpose of this bulletin is to help technicians identify which vehicles are equipped with the oil life monitoring system. Although many General
Motors vehicles prior to 2004 have been equipped with the oil life monitoring system, the 2004 model year vehicles were used as a starting point to
validate the system/scan tool functionality.
Customers have come to depend on the Oil Life Monitoring System found on most General Motor's vehicles to inform them when it's time for an oil
change. If for any reason the PCM is replaced, it is important to access the "Percent of Oil Life Remaining" from the vehicle's current PCM PRIOR to
removing the PCM. This value must be programmed into the new PCM (after it is installed in the vehicle) by using the scan tool.
Note:
Failure to reprogram the value to the new PCM will result in missed maintenance, which may cause damage to the engine.
Important:
If the replacement module is not programmed with the remaining engine oil life, the engine oil will need to changed at 5,000 km (3,000 mi) from the
last engine oil change.
Disclaimer
