NHTSA ID Number: 10089827
Manufacturer Communication Number: 15115
Summary
15115 – SERVICE UPDATE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO REPROGRAM AND UPDATE THE GLOW-PLUG CONTROL MODULE WITH NEW SOFTWARE ON CERTAIN 2015 MODEL YEAR CHEVROLET
SILVERADO HD CREW, HD CREW LTZ, HD REGULAR, HD EXT, HD EXT LTZ VEHICLES EQUIPPED WITH A DURAMAX DIESEL ENGINE (RPO LML) AND CERTAIN 2015 MODEL YEAR GMC SIERRA HD CREW, HD CREW DENALI, HD REGULAR, HD EXT VEHICLES EQUIPPED WITH A DURAMAX DIESEL ENGINE (RPO LML). THE SOFTWARE UPDATE LIMITS THE INTAKE-AIR HEATER INPUT VOLTAGE TO 13.5V. WHEN THE SYSTEM VOLTAGE EXCEEDS 13.5V, THE HEATER’S FIELD-EFFECT TRANSISTOR CAN GENERATE EXCESSIVE HEAT. THIS HEAT CAN CAUSE A SHORT CIRCUIT IN THE TRANSISTOR AND, IN RARE CASES, A FIRE IN THE VEHICLE’S ENGINE COMPARTMENT.
4 Affected Products
Vehicles
SEOCONTENT-START
SUBJECT: Service Update for Inventory and Customer Vehicles
Glow Plug Control Module Software
Expires with Base Warranty
MODELS: 2015 Chevrolet Silverado HD Crew, HD Crew LTZ, HD Regular, HD Ext, HD Ext LTZ
2015 GMC Sierra HD Crew, HD Crew Denali, HD Regular, HD Ext
Equipped with Duramax Diesel Engine (RPO LML)
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 and update the glow-plug control module with new software on certain 2015 model year Chevrolet Silverado HD Crew, HD Crew LTZ, HD Regular, HD Ext, HD Ext LTZ vehicles equipped with a Duramax diesel engine (RPO LML) and certain 2015 model year GMC Sierra HD Crew, HD Crew Denali, HD Regular, HD Ext vehicles equipped with a Duramax diesel engine (RPO LML). The software update limits the intake-air heater input voltage to 13.5V. When the system voltage exceeds 13.5V, the heater’s field-effect transistor can generate excessive heat. This heat can cause a short circuit in the transistor and, in rare cases, a fire in the vehicle’s engine compartment.
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 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.
PART INFORMATION
No parts are required for this repair.
SERVICE PROCEDURE
Note: Carefully read and follow the instructions below.
- 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) with the calibration update. If you cannot access the calibration, call the Techline Customer Support Center and it will be provided.
- DO NOT program a control module unless directed to by a service procedure or a service bulletin. If the control module is not properly configured with the correct calibration software, the control module will not control all of the vehicle features properly.
- Ensure the programming tool is equipped with the latest software and is securely connected to the data link connector. If there is an interruption during programming, programming failure or control module damage may occur.
- Stable battery voltage is critical during programming. Any fluctuation, spiking, over voltage or loss of voltage will interrupt programming. When required install the EL-49642 SPS Programming Support Tool to maintain system voltage. If not available, connect a fully charged 12 V jumper or booster pack disconnected from the AC voltage supply. DO NOT connect a battery charger.
- Turn OFF or disable systems that may put a load on the vehicles battery such as; interior lights, exterior lights (including daytime running lights), HVAC, radio, etc.
- During the programming procedure, follow the SPS prompts for the correct ignition switch position.
- Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to NO.
- Refer to Glow Plug Control Module Programming and Setup in SI for additional information on programming the glow plug control module.
- Install EL-49642 SPS programming support tool.
- Access the Service Programming System (SPS) and follow the on-screen instructions.
Note: The glow plug control module (GPCM) does not allow programming if its temperature is above 60°C (140°F).
- On the SPS Supported Controllers screen, select K34 Glow Plug Control Module – Programming and follow the on-screen instructions.
- At the end of programming, choose the “Clear All DTCs” function on the SPS screen.
WARRANTY TRANSACTION INFORMATION
Submit a transaction using the table below. All transactions should be submitted as a ZFAT transaction type, unless noted otherwise.
| Labor Code | Description | Labor Time |
| 9101686 | Glow Plug Control Module Reprogramming with SPS | 0.4 |
DEALER PROGRAM RESPONSIBILITY
Whenever a vehicle subject to this service update enters your vehicle inventory, or is in your facility for service in the future, and the vehicle is still covered under the New Vehicle Limited Warranty, you must take the steps necessary to be sure the service update correction has been made before selling or releasing the vehicle.
GM CUSTOMER CARE AND AFTERSALES
DCS3744
URGENT – DISTRIBUTE IMMEDIATELY
| Date: | August 12, 2015 |
| Subject: | 15115 – Service Update Bulletin |
| Glow Plug Control Module Software | |
| Models: | 2015 Chevrolet Silverado HD |
| 2015 GMC Sierra HD
Equipped with Duramax diesel engine (RPO LML)
|
|
| To: | All Chevrolet and GMC Dealers |
| Attention: General Manager, Service Advisor, Service Manager, Parts and Service Director, Parts Manager, New or Used Vehicle Sales Manager, and Warranty Administrator | |
General Motors is releasing Service Update Bulletin 15115 today. The total number of U.S. vehicles involved is approximately 136,000. Please see the attached bulletin for details.
Global Warranty Management (GWM)
The “Investigate Vehicle History” (IVH) screen will be updated August 13, 2015. A list of involved vehicles in dealer inventory is attached to this message.
END OF MESSAGE
GM CUSTOMER CARE AND AFTERSALESscreen.
SEOCONTENT-END
GM Bulletin No.: 15115
Date: August 2015
To View or Download this Document Click Here
GM Bulletin No.: 15115
Date: August 2015
To View or Download this Document Click Here
Reprogramming
GM Diagnostic/Programming (TIS2Web)
Approved J2534 Device with TIS2WEB can reprogram 1996 and later All GM Modules.
To obtain the latest electronic controller calibration information for your vehicle, go to https://tis2web.service.gm.com/tis2web and enter the vehicle's 17 character Vehicle Identification Number (VIN) and select 'Get CAL ID’.
You can then compare the latest part number with the actual number installed on the vehicle to determine if a reprogram is needed.
The Service Programming System (SPS) application is part of the TIS2Web system. To program an ECU, the SPS application must communicate with the vehicle control modules using the proper J2534 programming interface tool.
The Tech 2 supports model years 1996 and beyond. With the addition of the CAN Diagnostic Interface (CANdi) module, Tech 2 is fully backward compatible with current Tech 2 functionality and operates transparently when diagnosing non-CAN-equipped vehicles.
Servicing the next generation Global A vehicles will require the diagnostic software, GDS2, Global Diagnostic System 2 running on a local PC device while the MDI is connected to the vehicle. The GM MDI is the Global Diagnostic tool for future vehicles starting with Global A vehicles.
The GM MDI was introduced in the fall of 2007 for Pass-Thru programming and offers faster programming speed. It can be used to perform Pass-Thru programming on all vehicles built since 1996 and into the future. Click here to view a list of GDS supported vehicles.
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