General Motors
BUICK
, CADILLAC, CHEVROLET, GEO, GMC, HUMMER, OLDSMOBILE, PONTIAC & SATURN
Diagnostic and Reprogramming Tool
Tech2 kit and Candi Module are available for purchase from Robert Bosch Aftermarket, LLC formerly Vetronix and OTC.
Training & Training Materials
Go towww.gmtechinfo.com or call 1-800-825-5886
Service & Collision Information
Online service information is available by subscription access at www.gmtechinfo.com
Printed service manuals are available for purchase at www.helminc.com
Additional collision repair information maybe found at https://www.goodwrench.com/gmgoodwrenchjsp/gmspo/index.jsp
Reprogramming Information
Which models and model years are reprogrammable for which functions?
GM started service programming of Engine Controllers with some vehicles in the 1993 model year and ramped up to nearly 100% by the 1995 model year. The last engine controllers were for diesel engines used in medium duty trucks. All OBDII ECUs are programmable.
Body and chassis controllers were reprogramable in some vehicles starting in the 1996 MY, and phased in the next few years. Today some vehicles have as many as 28 reprogrammable controllers.
How to determine whether a recalibration update is available for a specific vehicle?
Go to https://tis2web.service.gm.com/tis2web and input the vehicle’s VIN and the site will return the calibration history for the particular vehicle.
If assistance is needed, call the TIS 2 helpline at 1-888-212-8959
How to get the recalibration update information?
Go to www.gmtechinfo.com and purchase one of the TIS 2 Web subscriptions.
What equipment is needed to do the reprogramming?
BOSCH MTECH2 Mastertech II J2534 VCI with Wired/Wireless Capability
| Bosch Automotive Tools MTECH2 Mastertech II J2534 VCI with Wired/Wireless Capability for OEM Reprogramming and Diagnostics on GM, Ford, FCA, Nissan/Infiniti, Honda/Acura, and Toyota/Lexus Vehicles |
| Drew Technologies (DRWCDPLUSKIT) CarDAQ-Plus J2534 Flash Reprogramming Kit | |
Opus IVS CarDAQ-Plus 3 All Makes J2534 Reprogramming Tool
| CarDAQ-Plus 3 All Makes J2534 Reprogramming Tool |
| Drew Technologies (DRWMONGGM) Mongoose GM Vehicle Interface (VPW/CAN) J2534 | |
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No products found. | Mongoose-Plus J2534 OEM Vehicle Interface Cable – GM OEM Reprogramming and Diagnostics |
Autel MaxiFlash Elite II PRO Car Scanner
| Autel MaxiFlash Elite VCI J2534 Pass-Thru ECU Programming Tool |
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No products found. | Mongoose-Plus J2534 OEM Vehicle Interface Cable – OEM Reprogramming and Diagnostics for GM |
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BOSCH MTECH2 Mastertech II J2534 VCI with Wired/Wireless Capability
| BOSCH Automotive Tools MTECH2 Mastertech II J2534 VCI |
Autel MaxiFlash VCI Kit, J2534 Pass-Thru ECU ProgrammingTool, 2026 J2534 Programmer, DoIP/CAN FD/D-PDU 4 Channels, Works with PC or MaxiSys MS909 MS909EV MS909CV Elite II Pro MaxiCOM Ultra Lite
| Autel MaxiFlash VCI Vehicle Communication Interface J2534 PassThru ECU Programming Device Bluetooth Connection Internet Update Support CAN FD, 4 CAN Channels, DoIP, D-PDU Works with PC or Autel MS909 |
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No products found. | VXDIAG VCX Nano Compatible for GM/OPEL with GDS2 and Tech2WIN System Diagnostic Tool |
What systems requirements are needed to support the reprogramming?
For the latest copy of the TIS 2 Web Hardware and Internet Specification go to
General Information
Go towww.gmtechinfo.com or call the ACDelco eBusiness Helpdesk 1-800-825-5886 prompt #3
TIS 2 Web ACDelco technical support can be reached at 1-888-212-8959
Where can I find information on the use of TIS 2 Web, Service Information and Tech2?
TECHLINE CONNECT
Techline Connect (formerly TIS2Web) is the internet-based subscription service for GM vehicle calibrations, Global Diagnostic System software, and scan tool hardware updates. This single application covers all technical problems accurately and efficiently by integrating Service Information, programming, and scan tool diagnostics into a one-stop shop.
BENEFITS:
- Helps improve profits by bringing diagnostics and repairs in-house
- Saves time by helping to diagnose GM vehicles quickly and accurately
- Quickly looks up vehicle calibrations
- Provides access to trained experts for time-sensitive issues related to the operation of GM software
- Offers multiple subscription options to better fit your service and diagnostics needs
- Compatible with a variety of GM makes and models
Participants in my GM Partner Perks may be eligible for additional discounts (learn more).
Si (Service Information)
Keep your shop informed and up to date with the most current and accurate repair data. Service Information, or Si, is a comprehensive collection of vehicle diagnostic and service repair manuals for GM vehicles—so your shop has everything you need to perform safe, proper repairs.
BENEFITS:
- Provides the most accurate and current repair information, to GM Original Equipment quality standards
- Delivers collision repair procedures, frame-sectioning information, panel-replacement procedures, and recall information
- Empowers your shop with service repair information to repair GM vehicles quickly and accurately
- Speeds up service repairs and controls costs by helping you complete jobs correctly the first time
- Features an expansive library of information that covers vehicle manuals, specifications, service bulletins, VIN tags, and more
SUBSCRIPTION INCLUDES:
- GM Vehicle Diagnostic Service (1998-present)
- Collision Repair Manuals (1998-present)
- Frame sectioning information, panel replacement procedures, and recall information
- Campaigns, service bulletins, and preliminary information for GM (1980-present)
- GM Owner’s Manuals and glove box supplements (2003-present)
- Easy-to-use keyword/document/number search
SUBSCRIPTION OPTIONS:
- $20 for 3 days
- $150 per month
- $1,200 per year
- $900–Perks+ and Pro Perks++ members are eligible for a discounted price of $900 per year (regularly $1,200)
- CONNECTION users can receive Si at no charge by purchasing a minimum monthly target of ACDelco parts (learn more).
MDI2 (Multiple Diagnostic Interface 2)
MDI2 is a GM Global Diagnostic Interface tool for both current and future GM vehicles that allows Techline Connect to communicate with a GM vehicle. This tool is required to diagnose some newer GM vehicles (starting with model year 2021). 2010 and newer GM vehicles require GDS2 software running on a local computer, while MDI2 is connected to the vehicle. A Techline Connect subscription is necessary to run this tool.
MDI2 Features Include:
- Wireless connection
- High-speed USB 2.0 connection
- Operation during engine crank
- Extended temperature range
- Enclosure design
- Vehicle communication protocol coverage
- DCL cable
- New hardware expansion capabilities
GDS2 (Global Diagnostic System 2) & Tech2Win
This is the GM diagnostic scan tool required to use MDI2. It allows technicians to scan the vehicle for data and trouble codes. GDS2 is supported on 2014 models and newer—support on earlier model year vehicles varies between Tech2Win and GDS2 software (learn more here).
SPS (Service Programming System)
SPS is the software application that communicates with the vehicle through MDI2 to update and/or program control modules within the vehicle.
DOWNLOAD ADVANCED DIAGNOSTICS INFO SHEET
TIS2Web
To maximize your shop’s potential, you need cutting-edge diagnostic technology. ACDelco’s Techline Information System (TIS) provides the essential tools and insight necessary in our ever-changing automotive service industry.
TIS2Web is the Internet-based subscription service for GM vehicle calibrations, Global Diagnostic System software and Tech2 diagnostic software updates. Trust ACDelco to empower your techs and bring your repairs to life. With over 100 years experience, ACDelco is one of the most qualified and committed champions of automotive service technicians
- Speed service repairs and control costs with TIS2Web – designed to support and grow any size business
- Save time when you diagnose GM vehicles quickly and accurately
- Improve profits by bringing diagnostics and repair in-house
- Access trained experts for time-sensitive diagnostic questions and concerns
SUBSCRIPTIONS
Accurate and efficient vehicle diagnosis and repair is a corner stone for any vehicle repair facility. ACDelco Technical Delivery System has multiple subscription offerings to fit your service and diagnostic vehicle repair needs. Service information gives you access to all documentation for repairing General Motors’ manufactured vehicles. Diagnostics enable you to communicate with General Motors vehicles. Service programming enables you to download and update module calibrations. To assure proper software functionality, please assure your computer hardware meets our system requirements.
Programming
Service Programming System (SPS2)
Includes 24 months access to program all modules for one vehicle (VIN)
Diagnostics
GM Light Duty Global Diagnostics 2-GDS 2 (Includes CAN Data Bus Diagnostic Tool)
Covers Chevrolet Light Duty Trucks
3 Days $57.00
1 Month $227.00
1 Year $575.00
Freightliner Global Diagnostic Software
This subscription covers the diagnostic scan tool software for Freightliner XXXX Trucks
3 Days $57.00
1 Month $227.00
1 Year $575.00
Tech2Win
Includes Software to emulate the Tech 2 on PC
3 Days $55.00
1 Month $225.00
1 Year $550.00
GM Medium Duty Global Diagnostics 2-GDS 2 (Requires Light Duty GDS 2 Subscription First)
Covers Chevrolet Medium Duty Trucks
3 Days $55.00
1 Month $225.00
1 Year $500.00
Global Diagnostic System (GDS2) + Tech2Win
Includes:
GDS 2 and Tech2Win are used to diagnose automotive electronic systems
1 Year $775.00
Tech 2 Diagnostics Software (This purchase is non-refundable)
North American version 33.004
Released Aug. 14 2013
1 Time Download $249.00
Service Information
General Motors Service Repair Manual Information (does not contain software)
Campaigns & Bulletins from 1980 to present
Unit repair manuals from 1997 to present
Service manuals from 1996 to present
Owner manuals from 2003 to present
GM Mode 6 Data & OBD-II Diagnostic Parameters
3 Days $20.00
1 Month $150.00
1 Year $1,200.00
Techline Connect
Single application which integrates service information, programming and scan tool diagnostics
1 Year $3,864.00
KEYCODES
A key code is a series of alphanumeric characters used by locksmiths to create a key.
Registered Vehicle Security Professionals can access key code information for General Motors vehicles through this site. This information may contain:
- Ignition Key Code
- Radio Unlock key code
- Immobilizer Key Code
- Compartment Key Code
- Vats Key Code
- Frequency Key Code
- Glove Key Code
- Storage Key Code
Key codes and Immobilizer information is available for 1985 to current General Motors vehicles, but some information may be missing for older vehicles. Users must have a valid Vehicle Security Credential from the National Automotive Service Task Force (NASTF) to access this information.
GM Service Information User Guides
The ACDelco Technical Delivery System store has been moved to Amazon.
- Advanced VCI Box, Industry-leading J2534 Pass-Thru Technology: This J2534 Pass-Thru Programmer is designed espically for technicians, independent shop owners, and DIY enthusiasts, enables fast, reliable computer-based programming. It supports all J2534 protocols—including the latest DoIP and CAN FD—ensuring full compatibility with both legacy and next-generation vehicles.
- High-Speed OEM-Level Diagnostics & Programming: Unlock true OEM functionality with comprehensive system diagnostics, guided troubleshooting, coding, adaptations, resets, and programming—all designed to slash repair time. This all-in-one tool eliminates the need for multiple OEM devices, boosting efficiency and cutting costs. Equipped with High-Speed USB, it delivers 10x more data per second than competing solutions
- Coverage for 17 Car Brands & Ultra Reliability: Works seamlessly for Chrysler, for Ford(Forscan), for GM, for Nissan, for Toyota, for Honda, for Subaru(SSM4), for Land Rover/Jaguar, for Volvo, for Wuling, for Volkswagen, for Mercedes-Benz, and for BMW. Backed by over 10000 real vehicle tests and benefit from a wealth of practical experience, this OEM reprogramming tool guarantees stable and exceptional performance
- User-Friendly RLink Platform & Expert Support: TOPDON’s proprietary driver management platform offers a clean interface and lifetime free updates. Access a rich library of real-world case studies to stay ahead of the curve. Backed by a support team with 10+ years of J2534 and automotive repair experience, we provide one-on-one assistance to resolve any technical issue.
- 6.6 ft USB-C Cable & Portable Storage Case: The RLink J2534 diagnostic tool features a 6.6ft USB 2.0 Cable and a 1.2 ft OBDII Extension Cable, allows to connection your computer easily outside the vehicle. The included handled carry case offers easy portability, storage, and hanging options—keeping your gear clean and ready to go, anywhere.
- J2534 Pass-Thru Programmer: TOPDON RLink J2534 is an advanced diagnostic and reprogramming tool that support all J2534 protocols, as well as D-PDU, CAN-FD and DoIP, ensuring compatibility with a wide range of modern vehicles. It offers extensive versatility with support for over 18 major automotive brands, including Chrysler, Ford, GM, Nissan, Toyota, Honda, Subaru, Land Rover/Jaguar, Volvo, Wuling, Volkswagen/Audi, Mercedes-Benz, and BMW. NOTE: Not compatible with Ford IDS diagnostic software
- All-in-One OEM Diagnostics: This J2534 ECU programming tool elevates your automotive repair capabilities to new heights by delivering complete OEM diagnosis. Boasting comprehensive full-system diagnostics, intuitive repair guides, advanced ECU programming and coding, common reset services, a vast library of repair information and more, this all-in-one solution empowers technicians to effortlessly tackle complex vehicle issues with ease. *Not compatible with 24V vehicles
- Proven Performance You Can Trust: Backed by over 10000 real vehicle tests and benefit from a wealth of practical experience, this OEM reprogramming tool guarantees stable and exceptional performance. Supported by TOPDON's dedicated technical experts with in-depth knowledge of both auto repair and J2534 Pass-Thru programming, the RLink J2534 provides prompt and professional assistance, ensuring a smooth setup and reliable compatibility
- Integrated Excellence, Always Up-to-Date: Featuring the exclusive RLink Platform to provide a streamlined experience with one-click driver installation and management, ensuring flawless integration with your OE software, maintaining the original performance quality. The built-in operation guide makes mastering OE software quick and easy, so you can get started right away. Plus, with lifetime free updates, your diagnostics will stay current with the latest drivers and innovations
- Efficiency Meets Versatility: Engineered to support three CAN channels simultaneously - CAN FD and CAN-CC included, giving you the edge in fast troubleshooting. To perfectly synchronized with the OE software, please diagnose with active subscriptions and make sure your computer system is running a compatible 64-bit Windows version (7, 8, 10 or later) to fully leverage the power of RLink J2534. *We don't provide extra OE software
- [J2534 Pass-Thru Programmer] - TOPDON RLink J2534 is engineered for professional technicians, delivering OEM diagnostic and reprogramming capabilities. It supports all J2534 protocols, CAN-FD, DoIP, D-PDU. Compatible with 17 vehicle brands—such as Chrysler, Ford, GM, KIA, Hyundai, Nissan, Toyota, Honda, Subaru, Mitsubishi, MAZDA, Land Rover/Jaguar, Volvo, Volkswagen/Audi, Mercedes-Benz, and BMW. RLink J2534 can help reduce the cost of purchasing equipment from different brands.
- [All-in-One OEM Reprogramming and Diagnostics] - When seamlessly integrated with OEM diagnostic software, this dongle enables you to perform a wide range of functions, including ECU programming and coding, DTC reading and clearing, active tests, component matching, adaptations, rewriting, guided troubleshooting, and more. This all-in-one tool eliminates the need for multiple OEM devices, significantly boosting work efficiency.
- [Tested, Trusted, and Proven for Accuracy] - TOPDON RLink J2534 is renowned for its reliability, having successfully completed over 10,000 real-vehicle tests. The wealth of data and hands-on experience behind it ensures consistent performance and accurate results. You can trust this tool to deliver optimal performance.
- [One-Click Installation, Continuous Updates] - The exclusive TOPDON RLink platform streamlines installation with a one-click driver setup, allowing you to quickly access OEM software for diagnostic and reprogramming tasks. With lifetime free updates, your RLink J2534 stays current without any additional cost, ensuring reliable performance for the long term. *We don't provide extra OE software.
- [Works with Windows Compatibility and OEM Software Subscription] - The RLink J2534 supports three CAN channels - including CAN FD and CAN-CC, providing advantages in the process of rapid troubleshooting. Compatible with Windows 7, 8 and 10 (64-bit) and higher versions of the system. For full functionality, an active OEM software subscription is required for each supported vehicle brand. Please note that the dongle does not include OEM software, which must be purchased separately to access brand-specific diagnostic and reprogramming features.
- Dual WiFi & 10.1" Touchscreen: Provides a stable, high-speed wireless link 3x faster than bluetooth, and a responsive, professional interface. Topdon ONE obd2 scanner diagnostic tool ensures smooth, non-lagging diagnostic scan, boosting mechanic efficiency
- J2534 Pass-Thru Support: The included ONE VCI supports the J2534 standard, allowing it to function as a pass-thru device when paired with OEM diagnostic software.Through TOPDON’s RLink platform, technicians can perform dealer-level coding, expanding in-house capabilities without investing in multiple factory automotive scan tools
- OE Topology Mapping: Visualize the vehicle’s ECU network exactly as it’s built.Zoom, pan, and highlight specific modules to pinpoint component issues with precision.Topology mapping displays real-time communication between modules
- 50+ Service Functions: Covers high-demand services like ADAS calibration, DPF regen, TPMS reset, ABS bleed, and throttle adaptation.Expands your service menu, allows you to charge premium rates, and turns away zero jobs due to lack of tooling. Vehicle-specific functionality may vary
- Advaned ECU Coding: 10 of the most serviced brands in North America, including full ECU coding and flash hidden support for BMW, VW, Au-di, Benz, Porsche, Toyota, Ni ssan and more. Enables module replacement, feature customization, and personal settings with automatic backup or restore.Lets your shop safely offer high-margin customization services, attracting more customers and boosting profit
- ALL OF THE J2534 PROTOCOLS - This single unit has all of the protocols you need for your OEM J2534 reprogramming and diagnostics including the latest in DoIP and CanFD
- J2534 TECHNICAL SUPPORT - FREE for the life of the tool. Staffed by technicians who understand vehicle repair and J2534 Pass‑thru
- TOOLBOX WITH OEM APPLICATION DESCRIPTIONS - educational video tutorials and real-time news – Giving you the confidence and up-to-date knowledge to get the job done
- J2534 v05.00 API - The newest version of J2534 to give you the latest in pass-thru technology
- FUTURE PROOF WITH 4 CAN CHANNELS - Going beyond the 3 required by select Chrysler/FCA models, CarDAQ-Plus 3 also provides a 4th to meet the needs of future OEM applications
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