Model 3

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The helpful guide to RESET on Tesla Model 3

edited November -1 in Model 3
The helpful guide to RESET on Tesla Model 3
(I may not have covered everything so corrections and feedback welcome)

These are in order from shallow to deep. I use the names used in the Tesla manuals where available.

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=== 1. Restarting the Touchscreen ===
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== Steps
* Shift into Park.
* Hold down both scroll buttons on the steering wheel until the touchscreen turns black and the Tesla logo appears.
* Wait approximately 30 seconds for the touchscreen to restart

== What this is good for
(If your touchscreen is unresponsive or demonstrates unusual behavior)

== EXACTLY what the Tesla Model 3 manual says about this
If your touchscreen is unresponsive or demonstrates unusual behavior, you can restart it to potentially resolve the issue.
Note: Restarting the touchscreen using the scroll buttons does not power Model 3 off and on.

== Special Notes
Doing this while the brake is pressed is the SAME as doing it without the brake. Some sources claim doing this with the brake is a deeper type of reset, but that claim is NOT supported by any documentation or data.

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=== 2. Powering Off ===
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== Steps
* sit in the driver’s seat while the vehicle is not moving and is in Park
* Touch Controls > Safety & Security > Power Off
* Wait a minimum of 2 minutes (3 may be better). Remain still so car does not recognize there is a drive present
* Press the brake pedal, touch the touchscreen, or open driver door to power on again

== What this is good for
This may help resolve transient software issues other than the touchscreen. For example problems with the cameras or GPS.

== EXACTLY what the Tesla Model 3 manual says about this
Model 3 also powers off automatically after being in Park for 15 minutes, even if you are
sitting in the driver’s seat.

Although usually not needed, you can power off Model 3 while sitting in the driver’s seat,
provided the vehicle is not moving. Touch Controls > Safety & Security > Power Off.
Model 3 automatically powers back on again if you press the brake pedal or touch the touchscreen.

== Special Notes
This is the same "sleep mode" that the car will go into nightly (after some period of non-use)


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=== 3. Disconnect High Voltage Power ===
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Aka: Hard Reset; Power Rail Reset

== Steps
See here: https://www.mountainpassperformance.com/tesla-model-3-hard-reset/
In summary:
* Disconnect 12V Battery
* Disconnect High Voltage Battery
* Wait
* Reconnect batteries

== What this is good for
In cases where car has lost: all cameras (black backup camera), GPS, AutoPilot, lane lines and other vehicles, then this has been reported to remedy the issue.
There is a "smart fuse" which can trip causing the stated symptoms, and this procedure will reset that fuse

== EXACTLY what the Tesla Model 3 manual says about this
nothing. This is not a Tesla recommended end-user procedure
(There is a service technician Body Repair Tech Note on this procedure here: https://teslaownersonline.com/attachments/br-17-17-004_disconnecting_12v_and_high_voltage_power_on_model_3-pdf.3090)

== Special Notes
If you have to do this often, then there is an underlying problem that you should get diagnosed and fixed at a service center.

Comments

  • edited March 2020
    You can do a scrollwheel only reset while driving -- the car doesn't need to be in park. It can help with more than just the screen, such as connectivity issues. You also don't need to be in park to do the brake+scrollwheels.
  • edited November -1
    Interesting what you say in Note1 about the brakes. Thx.
  • edited November -1
    Is it recommended to do a hard reset once in a while or just when there are bugs after an update?
  • edited April 2020
    @FactDoc You don't have to do a reset at all, never, if all things work fine. If you encounter issues of any kind and are getting a or multiple fault messages that won't disappear then you start with the scroll wheel reset, which you can even do while driving as it shuts down only a few things in the car, none of them related to the driving, even autopilot keeps working. If that does not solve the issue, you move on to number 2 and if that does not do it you'll do number 3. If number 3 does not solve the issue, you'll have to contact Tesla. I have made a video on all 3 resets on my Family channel. Even showing scroll wheel reset while driving. If you interested click the link to the first reset then click the channel icon to find the other 2.
  • edited April 2020
    @FactDoc, I do a scroll wheel reset and power off for a full 4 minutes after every OTA update. Seems to prevent a lot of the glitches people post here after receiving an update. Maybe I'm wrong and just lucky in not getting most of the glitches posted here.
  • edited April 2020
    I’ve seen the brake make a difference in the Model S. Never gotten anything bad enough in the 3 to need it.
  • edited April 2020
    @gmr6414
    You are right and I can confirm.
    After my last OTA 2020.8.3 I have had several of these small glitches. I spare you the details. But the scrollwheel reset fixed all of them.
  • edited November -1
    Thanks to seth2020. Hard reset did the trick. Great instructions, super easy and took 3 minutes. Super grateful. Thx.
  • edited April 2020
    Thanks to seth2020. Hard reset did the trick. Great instructions, super easy and took 3 minutes. Super grateful. Thx.
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