Tesla Service Mode: How to Access It and What It Does

June 1, 2024

By Karan Singh

Tesla's Service Mode

Not a Tesla App

Tesla ships a very detailed and comprehensive diagnostic and repair utility that is available in-vehicle, without requiring external plugs, adapters, or computers. It helps both Tesla and 3^rd party technicians service Tesla vehicles far more efficiently.

Who Can Access It?

Unlike many other vehicle manufacturers, who require OBD-2 ports, service subscriptions, and other external utilities, anyone can access Tesla’s service mode. All owners and 3^rd party technicians can access Service Mode by simply entering a special mode in the vehicle.

What Features Does It Have?

Service Mode is a special hidden app in the vehicle that provides various diagnostics tools that let you test various vehicle subsystems and components. Remember that if you’re exploring service mode on your own, you’ll want to be careful. Many of the features kept inside Service Mode are intended for debugging or repair – and not for the average user, however, Tesla provides a very user-friendly interface.

The options available will vary based on the vehicle and the systems available in that vehicle. For example, the Model S will have a diagnostic tool to troubleshoot its door handles, while the Model X will have one for its falcon-wing doors, but most tools will apply to a wide range of vehicles.

The Vehicle Info section of Service Mode

Not a Tesla App

How to Access Service Mode

Tesla’s Service Mode is accessible via the touchscreen with just a few taps. Go to the vehicle controls button (the car icon), and tap the Software tab. After that, locate the vehicle model badge, (e.g. MODEL Y Long Range), directly beneath the vehicle image.

Tap and hold the word “MODEL” for 2 seconds, until you see a small ripple then let go. A menu and on-screen keyboard will pop up, prompting for an access code. Type the access code “service”.

Once you do this, it will bring up the SERVICE menu and a new app in the dock that’s red with a wrench. The entire display will also have a red border around it, indicating the vehicle is in Service Mode. Do NOT drive the vehicle in Service Mode, as many safety features are disabled while Service Mode is active.

How to Exit Service Mode

Once again, you can disable Service Mode from the primary display. If you’ve gone into another app, locate a bright red icon with a wrench in the dock or in the All Apps menu.

Once you bring up the Service Mode app, tap on the last icon in the left column. It’s red and shows a door with an arrow. Simply tap and hold this icon for several seconds to exit Service Mode. You’ll know once Service Mode is exited because the red border around the screen will be removed.

If you can’t find the Service Mode app, start Service Mode again by going to Controls > Software and holding the badge icon to enter Service Mode mode again. Once you’re back in the menu, tap and hold on the red exit icon.

Vehicle Info

Tesla breaks Service Mode into various sections which we’ll go through below. The Vehicle Info section provides most of the same information available in the vehicle’s Software menu, showing you things such as VIN, Autopilot computer, software version and more. At the bottom, you also have access to Service Alerts, Service Settings, Software Reinstall, and a Touch Screen check to confirm your display is working correctly. There is also a button for Additional Resources, which takes you to your vehicle’s Service Guide online.

Driver Assist

This tab has two menus – Cameras and ECU. The Cameras menu provides nominal information on the vehicle cameras, including pitch information – useful for technicians working on the windshield. You can also clear camera calibration from here – but you can also do that within the regular vehicle menus and get a full preview of all cameras.

The ECU tab provides information on the vehicle's electronic control unit and GPS/GNSS.

Infotainment

Infotainment section of Service Mode

Not a Tesla App

The Infotainment tab has two menus – Connectivity and Software. The Connectivity menu provides information on Wi-Fi and Cell connectivity and the status of the vehicle’s modems. You can run tests on either modem from here.

The Software tab provides information on the vehicle’s downloaded software and backup banks. Here, you’ll see that both the infotainment and Autopilot systems have 2 side-by-side banks – one keeps the previous update. Map info is also available here. These will be blank or display “—” while updating.

High Voltage

High Voltage section of Service Mode

Not a Tesla App

The High Voltage section is one of the most useful menus – it provides you with the ability to conduct Battery Health tests. The UI here provides information on the entire high-voltage system, including the battery, inverter, motors, vehicle charger, as well as the contactor and high-voltage pyro fuse.

The second tab in the high voltage menu displays the temperature of the battery and details on connected charging apparatuses.

Low Voltage

The Low Voltage system is all the other electronics in the car, and it provides information on the various low voltage components, including the 16v Lithium-Ion (or 12v Lead-Acid, for older vehicles).

This UI is drastically different in the Cybertruck – where it does not run on 16v, but rather 48v.

The last piece of the Low Voltage UI is Homelink. If you purchase Homelink – an add-on module – Tesla will install it for you. If you choose to install it yourself, you can commission the Homelink module through this menu. In the menu, you can also see how many devices are programmed and how many codes have been transmitted with HomeLink.

Thermal

The Thermal menu displays the status of the HVAC system, as well as the battery’s portion of the loop. It’s one of the coolest-looking menus since its animated.

It provides options for self-tests, as well as several options for the coolant and thermal pumps. This UI is for vehicles with heat pumps – legacy vehicles will have an A/C compressor and resistive heating.

This is also where you can view the status of your cabin and HEPA filters, and you can see if they need to be replaced.

The Thermal Menu on 2024.14

Not a Tesla App

Chassis

The Chassis menu provides you with steering options – and the ability to view or adjust your steering wheel offsets, look at suspension information on the Model S and X, re-calibrate the steering column, and confirm each of the buttons on the steering wheel and its stalks are working as expected.

It also provides you with some details on the vehicle’s brakes – showing some test and brake bleed options. An option for Brake Burnishing option is also available here.

Closures

The closures menu shows the status of windows, or automatic doors as well as the status of the front and rear defrosters. You can recalibrate each window and confirm it’s working properly. On the Model S it displays information on the automatic door handles, on the Model X it has a test for the gull-wing doors and for the Cybertruck you can test the tonneau cover.

Safety & Restraints

Safety & Restraints section of Service Mode

Not a Tesla App

This menu simply displays the status of airbags, seat restraints, occupancy sensors and the pyro fuses in them, letting you confirm that each item is working properly and doesn’t have any faults.

Service Mode+ and Toolbox3

Of course, Tesla does have their own way of getting even more data than what is provided in Service Mode, through Service Mode+ and Toolbox3 – a subscription-access service similar to other vehicle vendors.

Service Mode+ is an additional set of tools that are internal to Tesla and require a Toolbox3 setup and subscription to access. It provides further information to fleet owners, collision centers, and Tesla technicians to diagnose and repair vehicles, as well as providing the capability to easily enable or disable Service Mode on vehicles remotely.

Toolbox3 is a subscription service that Tesla offers 3^rd-party technicians and collision centers for around $3,000 per year or a hefty $500 for 30 days. Toolbox3 is installed on a computer and uses a special vehicle interface cable connected to the vehicle. If you’re a technician looking for details on how to set up or use Toolbox3, Tesla’s Online Service Manuals provide a per-vehicle and per-hardware spec guide on how to set it up.

Tesla Now Display Which Apps Are Accessing Your Vehicle's Location in Update 2024.20

June 29, 2024

By Karan Singh

Maxim

In an undocumented change in Tesla update 2024.20 and later, Tesla has added a minor, but privacy-focused change to its software. Tesla has a user privacy-first focused policy, which aligns with the expansion of user privacy changes.

Location Privacy

Since late 2023 (update 2023.38), Tesla has been showing a small location icon at the top of the screen any time the vehicle’s location is being accessed, either by Tesla or a third-party app.

This includes someone using the Tesla app, which displays the vehicle’s location on a map. However, as of update 2024.20 and later, Tesla is now expanding the information shown.

Previously, when the icon was tapped, it would display a general message explaining why the icon was appearing. The message stated:

“This icon appears when an app requests your vehicle's live location data.
You can turn off sharing anytime in Controls > Safety > Allow Mobile Access, including all Tesla app access.
When this setting is on, your vehicle communicates directly with the Tesla app and other apps, but Tesla doesn't track your location.”

The same text is still displayed, but now boldly says, “This icon appears when an app requests your vehicle’s life location data.”.

More importantly, Tesla now displays the service that is accessing the vehicle’s location (h/t DriveTeslaCanada). So if someone opens the Tesla app, the vehicle will now display that the vehicle’s location is being accessed by the “Tesla Mobile App.” In addition, it appears to also display which Tesla driver or account is viewing the location of the vehicle. If it’s a third-party app or service accessing the vehicle’s location, Tesla will display the name of the registered third-party app.

Disabling Location Sharing

Tesla states that you can still turn off sharing in the same location as before (Controls > Safety > Allow Mobile Access), but doing so prevents many features of the Tesla app from working. If you use a third-party service, the location information is also tied to gathering detailed data on the vehicle, making it an “all or nothing” option.

If you have a service request active, Tesla Service may also ask you to re-enable Location Services so that Mobile Service can find your vehicle.

Unfortunately, there isn’t a history of which apps have accessed your vehicle’s location over a certain period. The location icon and detailed information are only available for a few seconds when the icon is displayed.

Rimac Announces 'Verne' Robotaxi - Comparing it to Tesla's Upcoming Robotaxi [Photos + Video]

June 28, 2024

By Karan Singh

MotorTrend

Rimac, the company behind the Rimac Nevera electric hypercar, has announced that it intends to produce a robotaxi, and it looks quite similar to Tesla’s concepts. Much of what we’ve heard about Tesla’s upcoming robotaxi, the Cybercab, is featured in Rimac’s autonomous vehicle. From the two seats to the airy interior and the center-screen-focused interior, it’s all here, although there are significant differences as well. Rimac’s prototype, called Verne, was revealed on Wednesday, June 26^th.

Verne Robotaxi

Verne will include a 43

MotorTrend

The Verne is expected to begin operation in 2026 and is a two-seater robotaxi using Mobileye’s LiDAR technology. The vehicle is expected to be a level 4 autonomous vehicle, which means it would still require remote support for handling complex situations, similar to Waymo’s work in San Franciso.

The Verne has a 43” display, and 17 speakers, and is supposedly designed to emulate “a room on wheels”, with an inside-out design concept. Interestingly, rather than regular doors, the Verne has doors that swing forward horizontally, along with a keypad-based entry system.

A smaller screen between the front seats lets you control certain aspects of the vehicle

MotorTrend

Rimac says they have signed agreements to launch in 11 cities in the EU, the UK, and the Middle East. They have also mentioned they are negotiating contracts with 30 more cities worldwide.

Rimac also showed off images of its robotaxi app and a concept building for its robotaxis – presumably a charging and service hub.

The verne will feature sliding doors, a lot like a minivan

MotorTrend

Comparing Rimac’s Robotaxi to Tesla’s

Although Tesla has yet to reveal the Cybercab, there are several things Tesla has already talked about for their upcoming robotaxi. One key difference between Rimac’s vision and Tesla’s is that Tesla appears to be chasing the cheapest possible transport, with Tesla previously touting ride prices that would rival bus ticket prices. While Rimac appears to focus more on an ideal experience. While everyone loves extra luxury, at the end of the day, price usually wins.

The Rimac robotaxi app

MotorTrend

One example is Tesla’s single center screen, compared to Rimac’s two screens. In addition to the viewable 43” center display, which presumably is not a touch-screen, Rimac has a separate screen and controls between both passenger seats. Tesla’s approach appears to focus on a single screen, with the user controlling much of the car’s control such as music and climate through Tesla’s robotaxi app.

Another example is Rimac’s idea of including an entry pad and screen on the outside of the vehicle for passenger to be able to unlock the vehicle. Tesla’s approach to unlocking a vehicle is expected to rely on temporary keys that are tied to user’s phones leveraging ultra wideband, a lot like how Tesla’s phone keys work today on newer vehicles.

Tesla’s approach to autonomy is also drastically different than Mobileye’s, which relies on radar, LiDAR and more cameras than Tesla’s Autopilot suite today.

Viability

This announcement from Rimac is a bit of an oddity. As a company, Rimac has produced less than 150 vehicles in their short lifespan – all hand-designed and hand-produced Rimac Nevara hypercars. Their ability to scale to produce more than a handful of these Verne robotaxis, while visually appealing, is questionable at best.

On the same front, Rimac recently received a $200M Euro grant from the EU as part of a package to develop an economic recovery plan for Croatia. Rimac has also received $80M Euros in funding from Hyundai and Kia – but that was to collaborate on a high-performance fuel cell electric vehicle, and a high-performance EV sports car.

The exterior of the Verne robotaxi

MotorTrend

Beyond that, Rimac has never done any work with autonomy – the self-driving tech that is running the Verne is entirely based on the outsourced work from Mobileye. It seems that the Verne will serve as Mobileye’s real-life test on whether its technology can be integrated into a Robotaxi platform on its own.

Tesla previously used Mobileye’s technology for its own autonomy during its inception years (AP 1) but quickly moved on towards using its own vision-based camera tech instead.