Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Navigation System Diagnostic Mode (2016-17): Version
This screen shows the current version information for the navigation system.
- Program: Displays the version of the navigation software in the audio-navigation unit.
- ERATO, BU uCom, IPL, DBOOT, HDD, and DSP are all for factory use.
- Model: For this model, the field should begin with TX4.
- Coverage: Displays the destination of the audio-navigation unit.
If you need to Download (install) an older software version into the audio-navigation unit, do the following:
Older software should only be installed when directed by Tech Line.
1. Insert the update DVD or USB memory in which the software is installed
2. Select DownLoad in the Version screen
3. If you are loading older software into the audio-navigation unit's memory, a Confirmation screen appears warning you that the version being uploaded is older than the currently loaded software. Select Yes on the Confirmation screen.
4. The navigation system reboots. Check that the navigation display shows the map properly.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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