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 May Improve Car Wash Mode With Window Alerts

May 5, 2025

By Karan Singh

Not a Tesla App

There are a few features to keep in mind when taking your Tesla through a car wash, but Tesla’s Car Wash Mode makes it easy by enabling or disabling several features for you. These settings don’t only prevent damage to your vehicle, such as locking the charge port door so that it doesn’t automatically open when a cleaning brush touches it, but they also improve the experience by recirculating the air in the vehicle to prevent cleaning chemical smells from coming in.

Car Wash Mode makes it easy by giving you a checklist of items and their real-time status, alerting you of any important items, such as your trunk being open.

When activated from Controls > Service > Car Wash Mode, it performs a list of actions:

Automatically closes all windows
Locks the charge port door to prevent accidental opening
Disables automatic windshield wipers
Turns off Sentry Mode
Disables the walk-away door lock
Silences Parking Sensor chimes
Enables easy access to the Fold Mirrors and Free Roll options (you can also put your vehicle in neutral through the gear stalk)

What About Your Windows?

While Car Wash Mode monitors more than a handful of items, it doesn’t continuously check the status of your windows. When you first enter Car Wash Mode, the vehicle will automatically roll up any open windows. However, it won’t alert you if a window has been lowered after Car Wash Mode was enabled. This could spell disaster for your vehicle's interior, as one user found out.

Lincoln posted a video on X, demonstrating what happened to his friend and requesting that Tesla add open windows to the list of flags in Car Wash Mode.

Tesla’s Troy R. Jones, VP of North America Sales and Service, noticed the post and decided to take action, offering to pass on the suggestion to the vehicle software team.

Good recommendation. Sharing with the team. Thanks
— Troy Jones (@troyrjones) April 21, 2025

Potential Improvements

While Troy’s response doesn’t confirm the feature being added in a future update, it’ll at least be put in front of the software team to potentially address.

Tesla could add this window-specific solution in several ways. Tesla could add this as another on-screen flag while the vehicle is in Car Wash Mode, simply alerting the driver that there’s a window open. However, they could also go one step further and lock the rear windows to prevent accidental opening while Car Wash Mode is enabled.

In case of an emergency, Tesla could present an on-screen button that pops up when a user tries to open a window while Car Wash Mode is activated, letting the driver override Car Wash Mode.

We’re interested to see what Tesla would do here, as these little quality-of-life changes really improve the end-user experience. What else would you like to see added to Car Wash Mode?

Houston Neighborhood Offers a Glimpse of the Future With Tesla-Powered Smart Homes

May 5, 2025

By Karan Singh

Not a Tesla App

Tesla offers a range of home energy products — from the widely used Wall Connector to the Powerwall and the innovative Solar Roof. Now, for the first time, a unique residential development in Houston, Texas, combines all of these technologies — and more — to move toward energy self-sufficiency.

Self-Sufficient

This community, located in Oaks of Shady Acres and built by Utopia Homes, consists of just 11 townhomes, each designed using Tesla technology to be self-sufficient. Utopia has equipped the homes with Solar Roofs, Powerwalls, and Wall Connectors to complete the entire ecosystem.

Tesla’s Solar Roof replaces traditional roofing materials while doubling as a clean energy source during daylight hours. The best part is that it mimics the look of conventional shingles while improving durability and longevity. Any excess energy generated is stored in the home’s Powerwall 3 units, providing power when the sun is down.

Tesla's Solar Roof

Not a Tesla App

Tesla’s Universal Wall Connector, which can charge any EV equipped with either a NACS or CCS port (through a J1772 adapter). If you added on a Cybertruck with Powershare (more vehicles will support Powershare in the future), you’d have a backup system that would last an extremely long time on batteries alone.

A Powerwall 3 stores about 13.5 kWh of energy, while a Cybertruck has a battery pack of 123 kWh, which is roughly equivalent to about nine Powerwalls. In addition, the Cybertruck could be used as a “mobile battery pack,” which can get additional energy from Superchargers and bring it back to the home if there’s an extended power outage.

Utopia markets these homes with “100% energy security,” - but they’re still grid-connected. However, they appear to have made quite a point with this - as many people in Texas, with its notoriously unstable electricity grid - were excited to get into these homes.

Sadly, these homes still include a gas range, so they’re not entirely green and disconnected. This likely comes down to the fact that powering an induction range alongside a heat pump in the winter could draw more energy than Powerwall 3 is capable of outputting instantaneously.

Attention Getters

These 11 homes attracted a lot of attention - according to a broker working on Utopia’s team, they had requests to see or buy these homes coming from across the country. Priced around $544,900, these homes are about $150,000 higher than Houston’s median list pricing for similarly sized townhomes, but the benefits are clear for many buyers who will recoup these additional costs over the home’s life.

Utopia has acknowledged the demand for Tesla-powered and future-proofed homes like these and is already planning to build more in the future. This is an excellent showcase of what an electric-powered future could look like, and we’re excited to see more of these types of homes and neighborhoods in the future.