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General Motors Updates Brand Mobile Applications

The company released software version 8.17.0 for myChevrolet, myGMC, myBuick, and myCadillac apps in September 2026.

Updated on Oct. 24, 2026 in Automotive — General

Isometric editorial illustration of four geometric vehicle modules arranged in a grid, representing a digital platform update.
General Motors released a software update for its mobile applications in September 2026, ahead of a major platform consolidation planned for next year. AI Illustration. Upload story photo >

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General Motors issued software update 8.17.0 in September 2026 for its suite of brand-specific mobile applications. The update introduces interface customization features for users of myChevrolet, myGMC, myBuick, and myCadillac.

Why it matters

The software release serves as an intermediate step for users before General Motors phases out these separate applications. The transition aims to prepare the digital ecosystem for a significant platform consolidation planned for the coming year.

Software update 8.17.0 includes a new vehicle selector, customizable home screen control arrangements, and support for light and dark display modes. These features are now available to all users across the four supported brand applications.

The players

General Motors

General Motors is a major American multinational automotive manufacturer that designs, builds, and sells vehicles and vehicle parts.

OnStar

OnStar is a subsidiary of General Motors that provides subscription-based communications, in-vehicle security, hands-free calling, and remote diagnostics.

The details

The update, which rolled out via the Apple iOS App Store, allows multi-vehicle owners to toggle between profiles using a selector located at the top of the home screen. Users can now manually rearrange the layout of their controls for a more personalized experience.

Timeline

  1. September 2026: The version 8.17.0 update began rolling out to mobile users.

  2. 2027: General Motors plans to discontinue individual brand apps and launch a unified OnStar application.

Roadmap

This software update reflects General Motors' broader strategic pivot toward consolidating its fragmented digital touchpoints into a single, cohesive ecosystem. By centralizing services, the automaker is moving to streamline its software development lifecycle against competitors adopting similar unified architectures.

Drivers using multiple vehicles can now manage their accounts more efficiently through the home screen vehicle selector. Users should anticipate a full migration of their digital vehicle controls to a new, unified platform by 2027.

The takeaway

Owners of multiple vehicles should utilize the new selector to simplify their navigation between different profiles. Preparing for the transition to the future unified OnStar app in 2027 will help users adapt to the upcoming changes in digital vehicle management.

Further reading

For more information on current vehicle technology, visit the United States Automotive — General page.

Source note: This article includes information reported by GM Authority.

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