Cruze L4-1.4L Turbo (2011)
Control Module: Recalls
Campaign - Thermostat Sticks Open Causes Shift Issues
SERVICE UPDATE
Bulletin No.: 10399A
Date: December 02, 2010
Subject: 10399A - Service Update for Inventory and Customer Vehicles - Powertrain Improvements - Thermostat Sticks in Open Position and Shift
Quality - Expires with Base Warranty
Models:
2011 Chevrolet Cruze
Equipped with a 1.4L Turbo Engine (LUJ)
Supercede:
The Subject and Purpose in this bulletin are being revised to advise that the new ECM calibration will also address shift quality issues.Please discard all
copies of bulletin 10399, issued November 2010.
This service update includes vehicles in dealer inventory and customer vehicles that return to the dealership for any reason. It will expire at the
end of the involved vehicle's New Vehicle Limited Warranty period.
Purpose
This bulletin provides a service procedure to reprogram the engine control module (ECM) on certain 2011 model year Chevrolet Cruze vehicles
equipped with a 1.4L turbo engine (LUJ). These vehicles may have a condition where the thermostat sticks in the open position. If this occurs, diagnostic
codes will be set and the Service Vehicle Soon light/message will illuminate.
These vehicles may also have transmission shift quality issues due to calibration values.
This service procedure should be completed as soon as possible on involved vehicles currently in dealer inventory and customer vehicles that
return to the dealer for any type of service during the New Vehicle Limited Warranty coverage period.
Vehicles Involved
All involved vehicles are identified by VIN in the Global Warranty Management System - Investigate Vehicle History (GMVIS2) Application.
Dealership technicians should always check this site to confirm vehicle involvement prior to beginning any required inspections and/or repairs. It is
important to routinely use this tool to verify eligibility because not all similar vehicles may be involved regardless of description or option content.
Additionally, a list of involved vehicles currently in dealer inventory is available on the "Service Update Bulletin Information" link under the "Service"
tab in GM GlobalConnect (US) or attached to the GlobalConnect message (Canada) used to release this bulletin. Customer vehicles that return for
service, for any reason, and are still covered under the vehicle's base warranty should also be checked for vehicle eligibility.
Parts Information
No parts are required for this update.
Service Procedure
Do not attempt to order the calibration number from GM Customer Care and Aftersales. The calibration numbers required for this service procedure are
programmed into control modules via a Multiple Diagnostic Interface (MDI) or Tech 2(R) and TIS2WEB with the calibration update. When using a
MDI or Tech 2(R) for reprogramming, ensure that it is updated with the latest software version. Use TIS2WEB on or after 11/29/10 to obtain the
calibration. If you cannot access the calibration, call the Techline Customer Support Center and it will be provided.
For step-by-step programming instructions, please refer to SI and the Techline Information System (TIS) terminal.
1. Verify that there is a battery charge of 12 to 15 volts. The battery must be able to maintain a charge during programming. Only use an approved
Midtronics(R) PSC 550 Battery Maintainer (SPS Programming Support Tool EL-49642) or equivalent to maintain proper battery voltage during
programming.
2. Reprogram the engine control module (ECM) and transmission control module (TCM) in sequence. Refer to SI and Service Programming System
(SPS) documentation for programming instructions, if required.
1. Connect the MDI or Tech 2(R) to the vehicle. If using MDI, connect to programming terminal with the cable (USB or LAN).
2. Select J-2534 MDI or J-2534 Tech 2(R) and Reprogram ECU from the Select Diagnostic Tool and Programming Process screen.
