❓ Frequently Asked Questions
How do I cancel my subscription?
You can cancel your subscription anytime through the app:
1. Go to Profile > Subscription
2. Tap "Cancel Subscription"
3. Confirm cancellation
Your subscription will remain active until the end of your current billing period. Alternatively, manage your subscription through your Apple App Store or Google Play Store account settings.
Why does the app request location permission?
Location permission is only requested when you use the Service Finder feature to help you find nearby repair shops, mobile mechanics, and parts suppliers. We do not track your location at other times, and you can deny permission and manually enter a location instead.
Is my truck data and diagnostic information secure?
Yes. All data is encrypted during transmission using HTTPS/TLS. We do not sell your personal information to third parties. Your diagnostic codes, repair history, and truck information are stored securely and used only to provide you with personalized assistance. See our
Privacy Policy for details.
Can I use the app offline?
Yes, partially. Once you've viewed diagnostic results or saved repair guides, they are cached for offline viewing. However, features that require real-time data (AI diagnostics, parts search, service locator) require an internet connection.
What fault codes are supported?
Our AI supports all standard OBD-II diagnostic trouble codes (DTCs) including P, B, C, and U codes. We cover heavy-duty truck codes for all major manufacturers: Freightliner, Peterbilt, Kenworth, Volvo, Mack, International, and more.
How do I connect my telematics provider?
Telematics integration is available on Fleet plans. To connect:
1. Go to Settings > Telematics
2. Select your provider (Geotab, Motive, Samsara, etc.)
3. Follow the OAuth authentication flow
4. Grant permission to access your vehicle data
You'll need an active account with your telematics provider.
Is the AI diagnosis accurate?
Our AI provides helpful guidance based on fault codes, symptoms, and repair data from trusted sources. However, it is not a substitute for professional mechanical diagnosis. Always consult a qualified technician before performing safety-critical repairs. The AI helps you understand issues and make informed decisions.
How do I delete my account and data?
To permanently delete your account:
1. Go to Profile > Settings
2. Scroll down to "Delete Account"
3. Confirm deletion
This will permanently delete all your data including repair history, saved diagnostics, and profile information. You can also email us at
founder@tra.tools to request account deletion.