v1.2.1 ~ Routing fixes & updated maps

TruckSim GPS v1.2.1 is now ready to download on Google Play and Apple App Store.

The 1.2.0 navigation rework was one of the biggest changes to the app since launch, and with a change that big, some issues slipped through, especially for multi-mod setups.

Some of you probably noticed routes improving over the past weeks already (several fixes went out server-side, no app update needed). v1.2.1 wraps it all up with the client-side fixes and the latest map mod versions.

Routing should be as reliable as it used to be, with all of the improvements and lane-directions working as expected.

---
👉 Enjoying the app? TruckSim GPS only exists because people choose to pay for it. If you can, consider supporting the project on Patreon or by going Pro in the app, both help equally. 👈
---

Questions? Check the FAQs or ask us on Discord.
🌐 https://trucksimgps.com/

Changelog

🐛 Fixed

• Fixed the routing issues introduced in 1.2.0. The update reworked the foundations of the route-calculation system (adding lane support), which raised the error rate. Now fixed:

  • Routing errors with map mod combinations when there were actually valid routes available

  • Invalid long detours and deviations

  • Wrong-way paths being suggested in some spots

• Fixed inverted lane directions in left-hand-traffic areas like the UK

• Fixed the "More American Cities" map (its new cities were missing in 1.2.0)

• Fixed flickering in some map areas

• Map area colors are now more consistent and accurate

• Fixed "City not found" errors when routing to certain cities

⚠️ Known Issues

• Routing can send you to the wrong company when two companies share the same name in a city

🗺️ Map Updates

• Updated versions for existing map mods:

  • ETS2:

    • RBR Brasil v7.8 → v7.9

    • Silesia Rebuild v1.7.4 → v1.7.5

    • Silesia Rebuild (Poland Rebuild integration) v1.7.3 → v1.7.5

    • ETS2 Beyond by TerraMaps v9.1 → v10

    • Grand Utopia v1.20a → v1.20c

    • TruckersMP v1.59.1.3s → v1.60.1.7s

  • ATS:

    • ATS Expansion v21.0 → v22.0

    • Colombia Real Map v4.1.3 → v9.6.17

    • Alaska - North To The Future v0.8.7.2 → v0.8.8

    • Better Arizona v0.5.1 → v0.5.2

    • Road Connection: Better Arizona - Reforma v1.14 → v1.15.1

    • ATS Beyond by TerraMaps v9 → v10

    • SneaK's Yards v2026-05-18 → v2026-07-11

What's next?

Work continues on the next major update (1.3.0), focused on downloadable maps (so the app stops growing towards 1 GB and we can add many more mods) and voice navigation.

Happy trucking!
- Nico