no trial or free features
everything is locked behind a paywall and nothing useful is made available for free, making it impossible to gauge how useful/effective the paid version of the app could be.
Free
In-App Purchases
About
This app provides comprehensive diagnostic and control features for specific GM electric and hybrid vehicles. It allows users to monitor various vehicle parameters, perform deep diagnostics, and even control certain functions remotely via an OBD2 adapter.
✓Deep DTC scanning
✓Live parameter monitoring
✓Real-time battery analysis
✓HV Unlock function
✓Remote start and climate control
✓Charge management and scheduling
✓Module reset and clearing
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What's New in Voltage
2.2.3
July 14, 2026
Bug Fix Release Fixes and improvements following the 2.2.2 update
1
In-App Purchases
$24.99
Premium upgrade
Unlock advanced insights and control functions
User reviews
FAQ
What vehicles does Voltage support?
Voltage supports Chevrolet Volt, Opel Ampera, Vauxhall Ampera, Holden Volt, Chevy Bolt, and Opel Ampera-E models from 2017 to 2023. It requires a compatible ELM327 Bluetooth LE or Wi-Fi OBD2 adapter for connection.
What are the benefits of using Voltage?
Voltage offers comprehensive diagnostics, real-time monitoring of over 100 parameters including battery health, and enhanced control features like remote start, climate control, and charge scheduling for supported vehicles.
Does Voltage have ads?
No, Voltage does not contain advertisements. It is a free application that focuses on providing diagnostic and control features without interruptions.
What adapter is recommended for full functionality?
For full compatibility, including SW-CAN access, HVAC and Infotainment communication, remote start, and door unlock, an OBDLink MX+ or vLinker MS adapter is recommended. Bluetooth LE and Wi-Fi adapters offer limited compatibility.
Can Voltage help with charging issues?
Yes, Voltage includes charge management and scheduling features. It also has an HV Unlock function that can reset the Service High Voltage Charging System, potentially enabling charging on Ampera 2012 models.
How often is Voltage updated?
The latest version of Voltage is 2.2.2, which was last updated on July 7, 2026. Updates typically include improvements and support for newer vehicle models or features.
What is the rating for Voltage?
Voltage has a rating of 5.0 stars from 1 rating, indicating a highly positive user experience among its current reviewers.
Is Voltage available on Android?
Based on the provided data, Voltage is currently supported on iPhones. Information regarding Android availability is not specified.