Axxess AXSSO-GM2 Stop/Start Override Interface for Select GM 2016-2025

Axxess AXSSO-GM2 is a stop/start override data interface for select GM vehicles 2016-2025. It automatically disengages the factory STOP/START engine feature after the vehicle is started while allowing the driver to re-engage the feature when needed.

At a Glance

• STOP/START override interface for select GM vehicles 2016-2025
• Automatically disengages the factory STOP/START engine feature after startup
• Works with factory or aftermarket radio configurations where supported
• Allows the factory STOP/START button to resume the feature when supported
• Simple 2-wire setup
• Retains the factory remote-start feature when equipped and supported
• Designed for vehicle-specific Axxess applications; verify current fitment before purchase

System / Wiring Notes

• Vehicle compatibility depends on exact year, make, model, trim, and factory equipment
• Vehicle type or setup may require the Axxess Updater app or current Axxess setup procedure depending on application
• This interface overrides the STOP/START system behavior; it does not delete or permanently remove the factory system
• Refer to the current Axxess vehicle fit guide and instructions before installation

Exact Vehicle Compatibility

Find your vehicle below, then match the model year and factory-equipment details in the same row. Factory radio, amplifier, navigation, trim, speaker location, and connector differences can change which installation parts are required. If anything differs, contact MCOR before ordering.

Fitment note: Year and model alone are not always enough to confirm compatibility. Match every factory-equipment qualifier shown for your vehicle, and contact MCOR Automotive if the radio, amplifier, navigation, speaker, camera, trim, or connector details are uncertain.

Installation Notes

• Confirm exact vehicle fitment and factory STOP/START system compatibility before installation
• Professional installation is recommended for best results
• Additional installation parts may be required depending on the vehicle and radio configuration
• Check the current manufacturer instructions before installation

What’s in the Box

• Axxess AXSSO-GM2 interface with LD-GM1-SSO and LD-GM2-SSO harnesses

Technical Specifications

• Brand: Axxess
• Model: AXSSO-GM2
• Product Type: STOP/START override data interface
• Application: select GM vehicles 2016-2025
• Compatibility Type: Vehicle-specific
• Radio Compatibility: Factory or aftermarket radio where supported
• Sold As: Each

Identifiers & Packaging

• MPN: AXSSO-GM2
• UPC: 086429435388
• Sold As: Each
• Included Components: AXSSO-GM2 interface; LD-GM1-SSO harness; LD-GM2-SSO harness

Why Buy From MCOR Automotive

• Authorized retailer for the brands we sell
• Specialists in vehicle audio integration, radio replacement parts, and installation accessories
• 22+ years of professional automotive electronics experience
• Expert support for compatibility verification and proper setup