LaCrosse V6-3.8L VIN 2 (2005)
PROM - Programmable Read Only Memory: Customer Interest
Engine Controls - Erratic Fuel Economy Reading
Bulletin No.: 05-08-49-022
Date: September 02, 2005
TECHNICAL
Subject:
Driver Information Center (DIC) Fuel Economy Reading is Erratic (Update Powertrain Control Module [PCM] Software)
Models:
2005 Buick Allure (Canada Only), LaCrosse with Driver Information Center (RPO U68) and 3.8L V6 Engine (VIN 2 - RPO L26)
Condition
Some customers may comment on an erratic fuel economy reading on the driver information center.
Correction
A new calibration has been released to correct this condition. Reprogram the Powertrain Control Module (PCM) with software/calibrations contained in
GMNAO TIS version 6.0 or later, which was released on June 6, 2005. The software correction for the erratic fuel economy reading is a part of a new
calibration for an engine stall concern.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
