CTS Coupe AWD V6-3.6L (2011)
Engine Control Module: Recalls
Campaign - Oil Life Monitor, Reprogram ECM
SERVICE UPDATE
Bulletin No.: 11083
Date: April 13, 2011
Subject: 11083 - Service Update for Inventory and Customer Vehicles - Oil Life Monitor - Reprogram ECM - Expires with Base Warranty
Models:
2011 Cadillac CTS, SRX, STS
Equipped with a HFV6 Engine
This service update includes vehicles in dealer inventory and customer vehicles that return to the dealership for any reason. This bulletin 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 Cadillac CTS, SRX, and STS
vehicles equipped with a HFV6 engine. A new calibration has been developed that, depending on vehicle use and climate, may increase the
recommended engine oil change maximum mileage from 5,000 miles (8,000 km) to 9,300 miles (15,000 km).
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. 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 Service Update.
Service Procedure
Engine Control Module Programming
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) and TIS2WEB with the calibration update. When using a MDI for
reprogramming, ensure that it is updated with the latest software version. Use TIS2WEB on or after 4/13/11 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. Capture and record Engine Oil Life information. Write down remaining oil life as a percentage.
2. 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.
3. Reprogram the engine control module (ECM). Refer to SI and Service Programming System (SPS) documentation for programming instructions, if
required.
1. Connect the MDI to the vehicle. If using MDI, connect to programming terminal with the cable (USB or LAN).
2. Select J2534 MDI and Reprogram ECU from the Select Diagnostic Tool and Programming Process screen.
3. Select ECM Engine Control Module-Programming from the Supported Controllers screen.
4. Follow the on-screen instructions.
4. Clear all DTCs.
