myBuick
Overview
Automotive telematics applications have evolved from basic digital owner manuals into critical vehicle control hubs. Developed by General Motors, myBuick is the official mobile ownership platform for Buick vehicles. The platform integrates mobile software with GM's OnStar cloud network, allowing drivers to execute remote commands, track real-time vehicle diagnostic health, and access roadside assistance services.
MyBuick relies on a multi-tiered cloud-to-cellular communication pipeline. When a driver initiates a command—such as remote engine start, door unlock, or horn activation—the Android application sends an authenticated request via encrypted TLS channels to GM's OnStar server infrastructure. The OnStar gateway processes the authentication token and relays the command over commercial cellular networks to the vehicle's embedded Telematics Control Unit (TCU). In reverse, the TCU periodically queries the vehicle's internal Controller Area Network (CAN-bus) to push real-time telemetry data to the mobile app, displaying precise metrics for fuel tank level, individual tire pressures (TPMS), remaining engine oil life percentage, and odometer readings.
Beyond daily remote control and diagnostic monitoring, myBuick integrates dealership service management and navigation features. Drivers can search for preferred certified Buick service centers, review technician availability, and book routine maintenance appointments directly within the app interface. The platform also includes parking location pinpointing on digital maps, geofenced arrival alerts, and one-touch access to OnStar emergency roadside dispatch. From a privacy and data protection perspective, General Motors encrypts telematics data in transit and permits account deletion requests, though overall command availability remains tied to active OnStar subscription plans and cellular network coverage.
Pros & Cons
Enables convenient remote engine starting, cabin climate pre-conditioning, and door locking.
Displays accurate, real-time vehicle diagnostic data, including individual tire pressures, oil life, and fuel range.
Integrates directly with OnStar Roadside Assistance for immediate emergency towing or flat tire help.
Simplifies routine vehicle maintenance through an integrated dealership service booking interface.
Includes GPS vehicle locator mapping to help drivers easily find parked cars in large lots.
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Key remote functionality (such as remote engine start and door controls) requires an active paid OnStar subscription.
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The main dashboard layout places the remote start button where it can be accidentally tapped without a confirmation prompt.
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Telematics command delivery can experience delays in underground parking structures or poor cellular coverage areas.
Download
Get it on Google Play 
Get it on App Store FAQs
What are the primary capabilities of the myBuick application?
The app allows Buick owners to remotely start their engine, lock or unlock doors, inspect tire pressures and oil life, locate their parked car, and schedule service appointments.
Is an active OnStar subscription required to use remote commands?
Yes, core telematics controls, vehicle location tracking, and real-time health updates require an active trial or paid OnStar service plan.
How does the application check tire pressure numbers?
The app queries the vehicle's internal CAN-bus network via OnStar, retrieving real-time data from individual tire pressure monitoring system (TPMS) sensors.
Can I schedule vehicle service directly through the app?
Yes, users can choose their preferred certified Buick dealership, select required maintenance tasks, and confirm appointment slots directly in the app.
What security measures protect vehicle telematics data?
All communications between the mobile application, OnStar cloud infrastructure, and the vehicle TCU are encrypted in transit, and users can manage data privacy requests online.
Hot Reviews
Summarized from Google Play reviews and community discussions.
Buick owners express high satisfaction with the remote start feature during cold weather, appreciating the ability to heat the cabin and defrost windows before getting in.
A recurring complaint among users focuses on UI design, specifically noting that placing the remote start button directly on the main screen makes accidental presses too easy.
Multiple reviewers express frustration regarding subscription gating, arguing that basic remote door locking should remain free after purchasing the vehicle.
Drivers commend the real-time vehicle health dashboard, noting that checking oil life and tire pressure before long road trips provides substantial peace of mind.