Ascender 2WD V8-5.3L (2004)
Oil Change Reminder Lamp: All Technical Service Bulletins
Engine Controls - Engine Oil Life Monitor Won't Reset
TSB SB05-01-S001
Unable to Reset Engine Oil Life Monitor
ISSUE DATE: FEBRUARY 2005
Affected Vehicles
2004 Ascender (US) models equipped with 5.3L engine (VIN P).
Service Information
Condition:
Some owners may comment that they are unable to reset the Engine Oil Life Monitor.
Correction:
Reprogram the PCM.
Service Procedure
Reprogram the Powertrain Control Module (PCM) with a new service calibration released with ITCS CD version 33 or newer. Refer to Service
Programming System (SPS) in the Service Manual. As always, make sure your TECH2(R) is updated with the latest software version.
Warranty Claim Information
Use the labor operation shown.
