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Jamey Starett edited this page Aug 30, 2026 · 8 revisions

Frequently Asked Questions (FAQ)

Common questions and answers about MyGarage installation, configuration, and usage.


General Questions

What is MyGarage?

MyGarage is a self-hosted vehicle maintenance tracking application. It helps you track service records, fuel economy, documents, and reminders for all your vehicles in one place.

Is MyGarage free?

Yes! MyGarage is 100% free and open-source under the MIT License. You can use it, modify it, and even distribute it without any cost.

Do I need to know programming to use MyGarage?

No. If you can run Docker containers, you can use MyGarage. The Quick Start guide gets you running in under 5 minutes.

Can I use MyGarage for a commercial fleet?

Yes. The MIT License allows commercial use. MyGarage scales to support dozens of vehicles and users.

Is my data safe and private?

Yes. MyGarage is self-hosted - all data stays on your server. Nothing is sent to external services except:

  • VIN decoding (NHTSA public API - no personal data sent)
  • OCR processing (local, not cloud-based)
  • Email notifications (if you configure SMTP)

Can I access MyGarage from my phone?

Yes. MyGarage has a responsive web interface that works on mobile browsers. There's no native app yet, but the web version is fully mobile-optimized.


Installation & Setup

What are the system requirements?

Minimum:

  • CPU: 1 core
  • RAM: 512MB
  • Disk: 2GB
  • OS: Linux, Windows, macOS (anything that runs Docker)

Recommended:

  • CPU: 2 cores
  • RAM: 1GB
  • Disk: 10GB (for photos and documents)

Can I install MyGarage without Docker?

Yes. See the Installation Guide for bare metal installation instructions. You'll need Python 3.14+ and Bun 1.3+.

Does MyGarage work on Raspberry Pi?

No. The published ghcr.io/homelabforge/mygarage:latest image is amd64-only, so it won't run on ARM boards like the Raspberry Pi. Run it on an x86-64 host, or build your own ARM image from source.

Can I install MyGarage on Synology or QNAP NAS?

Yes! See platform-specific instructions:

How do I update MyGarage?

Docker Compose:

docker-compose pull
docker-compose up -d

Docker Run:

docker stop mygarage
docker rm mygarage
docker pull ghcr.io/homelabforge/mygarage:latest
docker run -d \
  --name mygarage \
  -p 8686:8686 \
  -v $(pwd)/data:/data \
  ghcr.io/homelabforge/mygarage:latest

Will updates delete my data?

No. Your data is stored in the /data volume, which persists across container updates. Always backup before major updates as a precaution.


Authentication & Security

Why does MyGarage warn about "No Authentication"?

By default, MyGarage starts with authentication disabled for easy initial setup. This is not secure for public-facing deployments. Enable local or oidc auth mode before exposing to the internet.

How do I enable authentication?

See the Authentication Guide. TL;DR: open Settings → System → Authentication and switch to Local (username/password) or OIDC. The change takes effect immediately — no restart or environment variables. In Local mode, register the first account from the login screen.

I forgot my password. How do I reset it?

If you're the only user:

  1. Stop MyGarage
  2. Delete the database file (WARNING: loses all data)
  3. Restart MyGarage
  4. Re-register with new password
  5. Restore data from backup

If you have an admin account:

  • Admin can reset passwords in Settings → Users

Better option: Switch to OIDC/SSO for centralized password management.

Can I use Google/Microsoft/Okta for login?

Yes! MyGarage supports OIDC/OAuth2 authentication. See Authentication - OIDC Configuration.

Is HTTPS required?

For production: Yes. HTTPS is required for:

  • Secure JWT cookies
  • OIDC authentication
  • Protecting sensitive data (insurance, VINs)

See Reverse Proxy Configuration for HTTPS setup.


Features & Usage

Can MyGarage track multiple vehicles?

Yes! There's no limit. Track as many vehicles as you want (cars, motorcycles, boats, RVs, etc.).

Does MyGarage support electric vehicles (EVs)?

Yes! MyGarage supports Electric and Hybrid vehicles with smart charging tracking:

  • Electric vehicles — Track kWh charged, charging costs, efficiency (kWh/100mi)
  • Hybrid vehicles — Track both gallons AND kWh for plug-in hybrids
  • Smart form — UI adapts based on vehicle type (hides/shows relevant fields)

See Fuel Tracking - Electric Vehicles for details.

Can I track fuel in liters instead of gallons?

Yes. Set Metric under Settings → System → Units and fuel, distance, and economy display in liters, kilometers, and L/100km. You can also mix them: Custom sets each quantity separately, so litres with miles, or PSI on an otherwise metric account, are both valid. Values are stored in metric-canonical units, so switching units doesn't lose precision. See Units.

Can I type a comma as the decimal separator?

Yes, since v3.0.1. Number fields accept either separator, so 528,25 and 528.25 are both read as the same value. This matters most on a phone, where the keyboard often offers only the separator matching your system locale.

Thousands separators are understood too — 1 234,56, 1.234,56 and 1,234.56 all work. If a value is genuinely ambiguous, your selected language decides how it's read.

One exception: the window sticker MSRP fields don't yet handle a typed comma decimal. Pasted and scanned values are fine. See Troubleshooting.

Does MyGarage track DEF (Diesel Exhaust Fluid)?

Yes, for diesel vehicles. Fill-ups, tank level, consumption rate, and cost appear on a dedicated DEF tab, with optional low-DEF alerts. DEF is diesel-only; other vehicles don't see it.

What extra details can I log on a fuel fill-up?

Beyond odometer, volume, and cost, a fill-up can record time, station, driver, payment method, trip type, outside temperature, and trip-computer (OBC) values. "Auto-fill from last drive" pulls OBC values from the most recent LiveLink drive session.

How does VIN decoding work?

MyGarage queries the NHTSA vPIC API (free public service) to decode VINs. This works for vehicles sold in the United States. International vehicles may have limited support.

VIN decoding doesn't work for my vehicle. Why?

Possible Reasons:

  • Non-US vehicle - NHTSA database only covers US market vehicles
  • Old vehicle - Vehicles older than 1981 may not be in the database
  • Commercial vehicle - Some commercial vehicles, RVs, motorcycles have limited data
  • Invalid VIN - Verify the 17-character VIN is correct

Solution: Use manual entry for vehicles that don't decode.

Can I import data from other apps (Fuelly, Car Minder, etc.)?

Yes. Export your data as CSV, then import via:

  • Settings → Import Data → Upload CSV

Map columns during import (date, odometer, cost, etc.).

Does MyGarage send reminders automatically?

Yes. Set SCHEDULER_ENABLED=true and configure a notification backend. A background scheduler checks for due/overdue maintenance, insurance/warranty expiry, NHTSA recalls, and odometer milestones, and sends notifications via ntfy, Gotify, Pushover, Slack, Discord, Telegram, Matrix, or email (Settings → Notifications).

Can I share my garage with family members?

Yes! Use auth_mode=local or auth_mode=oidc and create user accounts for family members. Vehicles can be shared with all users or assigned to specific users.

Can I export my data?

Yes. Settings → Export Data supports:

  • JSON - Complete data backup
  • CSV - Service records and fuel logs
  • PDF - Visual reports with charts

LiveLink & Telemetry

What is LiveLink?

LiveLink is MyGarage's real-time vehicle telemetry integration. It connects WiCAN OBD2 devices to MyGarage, providing live data, drive session tracking, diagnostic trouble codes, and automatic odometer updates.

See the full LiveLink Guide for setup and usage.

What hardware do I need for LiveLink?

You need a WiCAN device from MeatPi Electronics:

Device HTTPS POST MQTT Price
WiCAN PRO (recommended) ✅ Yes ✅ Yes ~$50
Standard WiCAN ❌ No ✅ Yes ~$35

The WiCAN PRO is recommended because it supports both transport methods. Standard WiCAN requires an MQTT broker.

Can I use LiveLink with any OBD2 scanner?

No. LiveLink specifically integrates with WiCAN devices that can push data via HTTPS POST or MQTT. Generic Bluetooth OBD2 scanners (like ELM327) are not supported.

What's the difference between HTTPS POST and MQTT?

Aspect HTTPS POST MQTT
Setup Simpler (direct to MyGarage) Requires MQTT broker
Latency Higher (new connection each request) Lower (persistent connection)
Device Support WiCAN PRO only All WiCAN devices
Remote Access Works over internet LAN only (unless broker is exposed)

You can use both simultaneously — LiveLink deduplicates data automatically.

Does LiveLink work when I'm away from home?

Partially. WiCAN devices require WiFi to transmit data. When your vehicle is away from WiFi range:

  • ❌ No live telemetry reaches MyGarage
  • ❌ Drive sessions during this time have gaps
  • ✅ Data resumes when you return to WiFi range

When the device reconnects to WiFi, MyGarage backfills the gap from the WiCAN's SD-card log (SD-equipped devices) — automatically on reconnect, or via a manual admin trigger — so drives away from home are filled in after the fact.

Why are there gaps in my telemetry data?

Gaps occur when the WiCAN device loses WiFi connectivity — typically when the vehicle is away from home. On reconnect, MyGarage backfills the gap from the device's SD-card log (SD-equipped WiCAN devices), so most gaps fill in automatically once you return to WiFi range.

How much storage does LiveLink telemetry use?

It depends on:

  • Number of parameters being polled
  • Polling interval (typically 5 seconds)
  • How much you drive

Rough estimate: 10-50 MB per vehicle per month with typical usage.

Configure retention periods (30-365 days) in Settings → LiveLink to manage storage. Daily aggregation preserves trends even after raw data is purged.

Why is my device showing as "offline"?

"Device offline" means MyGarage hasn't received data from the WiCAN for the configured timeout (default 15 minutes).

Possible causes:

  • Vehicle is away from WiFi
  • WiCAN lost power (vehicle battery disconnected)
  • WiFi network issues
  • Incorrect token or endpoint configuration

What are "phantom devices"?

Phantom devices appear when using MQTT with retained messages. If other WiCAN devices previously published to your broker, their retained messages may be replayed when MyGarage subscribes.

Solution: Clear retained messages from your MQTT broker. See LiveLink Troubleshooting.

Why isn't my odometer syncing?

Odometer sync requires:

  1. Your vehicle supports an odometer PID (not all do)
  2. WiCAN's AutoPID includes the correct odometer PID for your make/model
  3. The device is linked to a vehicle in MyGarage

Some vehicles (especially older or non-US models) don't expose odometer via OBD2. You may need manufacturer-specific PIDs.

Can I use LiveLink with multiple vehicles?

Yes! Each vehicle needs its own WiCAN device. Link each device to its respective vehicle in Settings → LiveLink → Devices.


Database Questions

Should I use SQLite or PostgreSQL?

Use SQLite (default) if:

  • Single user or small family (< 5 users)
  • Small garage (< 10 vehicles)
  • Homelab deployment

Use PostgreSQL if:

  • Multi-user (10+ users)
  • Large garage (50+ vehicles)
  • High traffic (hundreds of requests/day)

See Database Configuration for details.

Can I migrate from SQLite to PostgreSQL later?

Yes! See Database Configuration - Migration.

TL;DR: Export data as JSON, switch database, import JSON.

How do I backup my data?

Easiest: Settings → Backup & Restore (works for both databases; SQLite backups use the Online Backup API, so they're safe while the app is running).

Manual:

# SQLite — stop the container first (a live copy is a torn copy under WAL)
docker-compose stop mygarage && cp data/mygarage.db data/mygarage-backup.db && docker-compose start mygarage

# PostgreSQL
docker exec mygarage-postgres pg_dump -U mygarage mygarage > backup.sql

See Database Configuration - Backups.

Where is my data stored?

SQLite: /data/mygarage.db (inside container)

PostgreSQL: Inside the postgres_data Docker volume

Uploads (photos, documents): /data/uploads/ (inside container)

Docker Volume Mapping: ./data:/data maps container /data to host ./data directory.


Performance & Scalability

How many vehicles can MyGarage handle?

  • SQLite: 50-100 vehicles comfortably
  • PostgreSQL: 1,000+ vehicles

Tested with up to 10,000 service records without performance issues.

How many users can MyGarage support?

  • SQLite: 5-10 concurrent users
  • PostgreSQL: 100+ concurrent users

Why is MyGarage slow?

Possible Causes:

  1. Large database - Too many records for SQLite → Migrate to PostgreSQL
  2. Low resources - Increase Docker memory limit
  3. Slow disk - Use SSD instead of HDD
  4. Network latency - Check network between client and server

Diagnostics:

# Check Docker resource usage
docker stats mygarage

# Check database size
ls -lh data/mygarage.db

# Optimize SQLite
docker exec mygarage sqlite3 /data/mygarage.db "VACUUM;"

Can I run multiple MyGarage instances?

Yes, but:

  • Each instance needs its own database (or shared PostgreSQL database with connection pooling)
  • Use load balancer (HAProxy, Traefik) to distribute traffic
  • Shared file storage required for uploads (NFS, S3, etc.)

Not recommended unless you have advanced DevOps needs.


Troubleshooting Common Issues

Container won't start

Check logs:

docker logs mygarage

Common Issues:

  • Port 8686 already in use → Change port in docker-compose.yml
  • Database connection error → Verify MYGARAGE_DATABASE_URL if using PostgreSQL
  • Permission errors → Ensure /data volume is writable

"502 Bad Gateway" when using reverse proxy

Cause: Reverse proxy can't reach MyGarage container

Fix:

  • Verify MyGarage is running: docker ps | grep mygarage
  • Check health endpoint: curl http://localhost:8686/health
  • Verify reverse proxy and MyGarage are on same Docker network

See Reverse Proxy Configuration.

MPG not calculating

Cause: MPG requires 2+ full tank fill-ups

Fix:

  • Ensure "Full Tank?" is checked on fill-ups
  • Verify accurate odometer readings
  • Check you have at least 2 fill-ups (first fill is baseline)

See Fuel Tracking.

OCR not extracting text from documents

Cause: Low-quality scan or unsupported language

Fix:

  • Re-scan at 300 DPI or higher
  • Ensure document is well-lit, flat, and in focus
  • OCR works best on typed documents (not handwritten)

See Documents - OCR Text Extraction.

File upload fails

Possible Causes:

  • File too large (> 10MB for photos, > 25MB for PDFs)
  • Browser timeout on slow connection
  • Disk full on server

Fix:

  • Compress large files before uploading
  • Check server disk space: df -h
  • Increase Docker timeout if needed

Privacy & Data Questions

Does MyGarage send my data anywhere?

No. All data stays on your server. The only external API call is VIN decoding (NHTSA), which sends only the VIN (no personal info).

Does MyGarage record my location?

Only if you connect a Torque Pro source. Torque can send GPS coordinates alongside its OBD2 readings, and MyGarage stores those as trip routes and a last-known-location card. This arrived in v3.0.0.

WiCAN devices do not report position, so a WiCAN-only setup records no location data at all.

Location tracking is on by default for each vehicle, though it does nothing until a Torque source is actually sending GPS. To switch it off, open the vehicle's LiveLink → Trips tab and turn off Location tracking. It's per-vehicle, so each one is set independently.

Points already recorded are kept for 90 days by default and then pruned automatically, on the same retention setting as raw telemetry (adjustable in LiveLink settings). There's no on-demand delete button — shortening the retention window is how you clear history sooner.

As with everything else, location data stays on your server. See Trips & Location for the full picture.

Can I disable VIN decoding?

VIN decoding is optional. You can always use manual entry instead of VIN decoding.

Does MyGarage require internet access?

Optional. MyGarage works offline except for:

  • VIN decoding (requires NHTSA API access)
  • Email notifications (requires SMTP server access)
  • OIDC authentication (requires identity provider access)

All core features (service tracking, fuel logging, document storage) work offline.

Can I use MyGarage on a private network (no internet)?

Yes. Install MyGarage on your local network, and access it via local IP address. VIN decoding won't work, but all other features will.

Is MyGarage GDPR compliant?

MyGarage is a self-hosted tool, so you are the data controller (not us). As long as you:

  • Use it for personal/family data only (or get user consent for business use)
  • Implement proper security (auth, HTTPS)
  • Provide data export/deletion capabilities (built-in)

...you should be GDPR compliant. Consult a lawyer if using for business purposes.


Customization & Development

Can I customize the MyGarage interface?

MyGarage includes a light/dark theme toggle in the top bar, and an accent colour picker offering six colours (blue, amber, teal, red, violet, green) under the gear icon → Quick Settings. Both save to your account, so the choice follows you between devices. Customization beyond that requires modifying the source code.

Can I contribute to MyGarage?

Yes! MyGarage is open-source. See CONTRIBUTING.md for development setup and contribution guidelines.

Can I request features?

Yes! Open a Feature Request on GitHub or discuss in GitHub Discussions.

Can I hire you to add custom features?

The MyGarage project is community-driven and doesn't offer paid custom development. However, you can:

  • Fork the project and customize yourself (MIT License allows this)
  • Hire a developer familiar with Python/React to customize
  • Submit feature requests for community implementation

Licensing & Legal

What license does MyGarage use?

MIT License - Very permissive open-source license.

You can:

  • ✅ Use commercially
  • ✅ Modify the code
  • ✅ Distribute modified versions
  • ✅ Use privately

You must:

  • Include the original license and copyright notice

You cannot:

  • ❌ Hold the authors liable

Can I sell MyGarage as a service (SaaS)?

Yes. The MIT License allows commercial use. You can host MyGarage and charge users for access.

However: You must include the MIT License notice and give credit to the original project.

Can I rebrand MyGarage for my business?

Yes, but you must retain the MIT License notice in the codebase (users have the right to know it's based on MyGarage).


Support & Community

Where can I get help?

  1. Documentation - Read the wiki (you're here!)
  2. Troubleshooting Guide - See Troubleshooting
  3. GitHub Discussions - Ask questions at GitHub Discussions
  4. GitHub Issues - Report bugs at GitHub Issues

How do I report a bug?

  1. Check if it's already reported: Search Issues
  2. If not, open a new issue: Bug Report
  3. Include:
    • MyGarage version (docker inspect mygarage | grep "org.opencontainers.image.version")
    • Steps to reproduce
    • Expected vs actual behavior
    • Relevant logs (docker logs mygarage)

How do I report a security vulnerability?

Do NOT open a public issue!

Use GitHub Security Advisories or create a private issue. See SECURITY.md.

Is there a Discord/Slack community?

No. Use GitHub Discussions for community interaction.


Future Features

Will MyGarage support mobile apps (iOS/Android)?

It's on the roadmap! For now, use the mobile-optimized web interface.

Does MyGarage support OBD-II integration?

Yes! MyGarage now includes LiveLink, which integrates with WiCAN OBD2 devices for real-time telemetry. See the LiveLink Guide for details.

Does MyGarage support vehicle telematics?

Yes, via LiveLink. MyGarage supports real-time telemetry monitoring through WiCAN devices and the Torque Pro app:

  • ✅ Live engine data (RPM, speed, temperatures)
  • ✅ Drive session tracking
  • ✅ Diagnostic trouble codes (DTCs)
  • ✅ Automatic odometer sync
  • ✅ GPS trips and last known location — Torque Pro sources only, and switchable per vehicle. WiCAN devices don't report position. See Trips & Location.

Not supported:

  • ❌ Remote vehicle control

Changed in v3.0.0. Earlier versions of this page said GPS tracking was not supported. That is no longer accurate — GPS trips arrived in v3.0.0 for Torque sources. See Does MyGarage record my location? for what is stored and how to switch it off.


Still Have Questions?


Next: Check the Troubleshooting Guide for detailed problem-solving steps.

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