Toyota Touch & Go explained

There have been some questions about the physical Toyota Touch & Go unit in the comments of earlier blog posts. Those questions are already answered, but it’s nice to see how the system physically looks like. There is also a summery of what is system is capable of. This information comes from a troubleshooting guide.

The Toyota Touch & Go system enables a suite of services on select DA (Display Audio) head units on available Toyota models. The system will connect with the user’s cell phone for the provision of Location Based Services as well as the various applets such as Google search, fuel pricing, parking information, weather information, Parking and Glass of Water, etc.
The system utilizes a USB connection for system software updates, navigation map updates as well as access to a variety of USB media storage devices that use MP3, AAC, WMA and WAV audio formats. The USB uses the 2.0 USB standards for connectivity. The USB port will also charge a connected device.

The features provided by the Touch & Go System are:

  1. GPS Navigation with map display and turn-by-turn audible guidance
  2. USB2.0 interface – for software updated, USB media devices and USB charging
  3. Voice Recognition (TT&Go+only) capability for audio media control, GPS Navigation and Phone
  4. Handsfree phone
  5. On-line local search, POI send-to-car via cellphone link
  6. Connected Applets (Fuel, Parking, Park&Go & Weather) via cell phone link
  7. Non-connected Applets (Glass of Water)

The Toyota T&G service is enabled by the separate Extension Box (EXT) that mounts under the Display Audio (DA) head unit as shown below:

Touch & Go map outdated

I’m using the Toyota Touch & Go system for the past 2 months. Being a happy user I have one remark on the product, which is the navigation map.

Toyota says the following on their website “Did you know that 20% of the roads change every year? With up-to-date maps you get to your destination in time, avoid unpleasant surprises and detours, and drive more safely.” The map I have is the most up to date, which dates 21 march 2011. That is over a year and a month old. The dealer told me they are working towards a 6 months update cycle. I have send customer relations a mail on when we can expect a new map updates. When i receive a response I will post it here.

Harman has developed the Touch & Go system for Toyota. It uses QNX for the operating system and maps and updates are coming from which is a map update portal operated by NNG formerly knows as Nav N Go. The news section on the website report that there are map updates available for Europe 2011 Q4.

Toyota Touch & Go

Today I have upgraded my new car’s infotainment system firmware. It is nice to see frequent upgrades, but there is no change log whatsoever. So I decided to have a close look at the actual image file. This image appears to be a standard ISO 9660 CD-ROM filesystem data file which can be mounted as a cdrom. Doing so reveals a lot of interesting data such as version info of all modules, build time stamp. I did a diff on the version.txt file in /etc of both image files below:

Version 1.7.4L:!application/Toyota/OS/EU_Low/2012_03_19/swdl.iso (78M)
Version 1.7.2L:!application/Toyota/OS/EU_Low/2011_12_08/swdl.iso (78M)

The result is shown below:

< version=1.7.4L
< user=dmiller
< date=Fri 01/27/2012
< time=13:52:05.66
< Accellion_AAA:1.0.0:Mid_Common.packages.mainproc.thirdparty.accellion_AAA.trunk
< imageChecksumUtility:1.1.1:Mid_Common.packages.mainproc.harman.imageChecksumUtility.trunk
< nav:3.1.4_10-26-11:Mid_Common.packages.mainproc.harman.nav.release.CY11_EU
< nav-sys:1.0.11:Toyota.extension_box.omap.nav.trunk
< Spot Tools:1.2.0:Mid_Common.packages.mainproc.harman.spottools.trunk
> version=1.7.2L
> user=DMiller
> date=Wed 12/07/2011
> time=19:45:37.33
> imageChecksumUtility:0.1.0:Mid_Common.packages.mainproc.harman.imageChecksumUtility.trunk
> nav:3.0.7_10-26-11:Mid_Common.packages.mainproc.harman.nav.release.CY11
> nav-sys:1.0.8:Toyota.extension_box.omap.nav.trunk
> Spot Tools:1.1.0:Mid_Common.packages.mainproc.harman.spottools.trunk

So now we know the modules that have change between the 1.7.2L and 1.7.4 version. Looks like the navigation module is updated. There also one new module in 1.7.4 called Accellion_AAA.

I will investigate the differences further next time, so stay tuned! 🙂

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