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

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.

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What Is the Cybertruck's Jack Mode and How to Use It

Not a Tesla App

Did you know the Cybertruck’s air suspension automatically levels the truck, even while it’s asleep? This is a great feature, especially for camping or off-road adventures. However, it can be an issue when lifting a wheel to change a tire.

Fortunately, there’s a solution: Jack Mode.

Jack Mode

Jack Mode is made for jacking up the truck and prevents the Cybertruck from self-leveling.

To enable Jack Mode, you’ll first need to set the Ride Height to Medium from Controls > Dynamics > Ride Height. You can also set it from the Tesla app by navigating to the Controls section and sliding up until you see Ride Height. This will give you enough clearance for most jacks to get under the truck and lift it.

You can also activate Jack Mode in Low or High, but Tesla recommends a Medium ride height for best control of the vehicle and sufficient tire clearance to safely remove and reinstall the tire. However, once the vehicle is in Jack Mode, the Ride Height cannot be changed.

Next up, go to Controls > Service > Jack Mode to enable Jack Mode. The vehicle will warn you that Jack Mode is enabled and can either be disabled by pressing the button again or by putting the vehicle into drive.

For the duration that Jack Mode is active, it is safe to lift your Cybertruck, even on one side only. It will not self-level for the duration that Jack Mode is enabled.

Automatic Jack Mode

Jack Mode can also activate automatically to protect the suspension from potential damage. For example, if the vehicle’s bumper is resting on a curb, Jack Mode may engage on its own.

Once the obstacle is cleared, or if you shift into Drive or Reverse, Jack Mode will automatically be disabled.

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How the 25% Auto Tariffs Will Impact Tesla

Not a Tesla App

On March 27, the U.S. Administration announced a 25% tariff on all imported vehicles and foreign-made automotive parts, an attempt to strengthen domestic manufacturing. Currently, Tesla and Rivian stand out as the major EV automakers with a predominantly U.S.-built lineup.

In this analysis, we’ll explore the potential impact of these tariffs, examining key factors and what they mean for the industry moving forward.

Percentage of American Parts

One key item we want to point out here before we continue is that the NHTSA defines North American made parts as parts built in either the United States or Canada - Mexico is not included in this number. In November 2024, we found out the percentage of parts Tesla uses that come from the U.S. and Canada. At the top we have Tesla’s Model 3, which uses 75% North American parts.

We’ll be sticking with overall percentage of North American parts since we don’t actually know what percentage Tesla sources from Canada. We do know today that some cameras, essential die parts, and other key components are sourced from Canada for nearly every vehicle in Tesla’s lineup - so it isn’t an insignificant percentage.

Insulated from Tariffs?

At first glance, Tesla may seem insulated from these tariffs. However, its dependence on a global supply chain—particularly parts moving across the U.S.-Canada border under the US-Mexico-Canada Agreement (USMCA)—adds complexity to the equation. Additionally, potential retaliatory tariffs from Canada could further pressure Tesla, a trend already evident in the company being excluded from multiple EV incentives across the country.

While Canada isn’t Tesla’s largest market, it still accounts for a meaningful share of sales. Even a small decline in that market could have a noticeable impact on the company’s bottom line.

Domestic Advantage

Tesla’s domestic advantage is impressive—it manufactures all vehicles sold in North America at just two facilities: Tesla Fremont and Gigafactory Texas. The initial 25% tariff, set to take effect on April 2, 2025, applies to cars and light trucks assembled outside the U.S., likely dealing a heavy blow to competitors like Hyundai and Volkswagen. According to a Goldman Sachs report, these tariffs could drive up vehicle prices by $5,000 to $15,000.

However, this advantage is partially offset by exemptions under the USMCA. To avoid the full tariff, vehicles and parts must meet a strict “rules of origin” requirement, meaning at least 75% of components must come from the U.S., Canada, or Mexico. This exemption remains in place until May 3, 2025, when the second stage of tariffs kicks in—targeting non-U.S. content more directly.

Effectively, the NHTSA and USMCA’s existing framework for defining “North American-made” components is being upended. This shift plays to Tesla’s strengths, but to understand the full impact, we need to take a closer look at its supply chain.

Supply Chains

Tesla’s supply chain is deeply integrated across North America. Approximately 25% of the Model 3 Long Range RWD and AWD comes from Mexico - and some undefined percentage also comes from Canada. That number rises significantly for the other vehicle’s in Tesla’s line-up, which is available in the chart below from early November 2024.

Phase 2 of the tariffs will place an increasing impact on Tesla - especially as it won’t be simple nor quick for Tesla to move all part production to the United States. 

Battery Production

This is particularly evident in Tesla’s reliance on Canadian minerals, which are crucial for its battery production. Tesla sources key materials like nickel, lithium, and cobalt from Canadian mines, with most of these resources being shipped across the border in an unrefined state. Currently, these shipments face a relatively low 10% tariff from Canada. However, potential retaliatory tariffs could drive costs higher or even restrict access to these essential minerals.

While limiting access may seem extreme, Ontario has already threatened to halt nickel exports from Canada’s largest nickel mine to the U.S.—a move that could pose a serious challenge for Tesla.

Even Elon Musk has acknowledged that Tesla won’t emerge from these tariffs unscathed.

Important to note that Tesla is NOT unscathed here. The tariff impact on Tesla is still significant.

— Elon Musk (@elonmusk) March 27, 2025

Retaliatory Tariffs

Tariffs are rarely a one-way street. Canada and Mexico are likely to respond with retaliatory tariffs on U.S.-made auto parts or vehicles. Both countries have already explored reducing EV incentives by excluding Tesla from certain rebates. Additionally, there have been discussions about imposing tariffs specifically on Tesla, partly due to Elon Musk’s political involvement.

Consumer Impact

Several scenarios impacting consumers can unfold in response to these upcoming tariffs.

In the short term, higher prices for competitors could drive more customers toward Tesla as they seek more affordable products. However, increased import costs could force Tesla to either absorb the expense or raise prices—potentially offsetting any sales gains.

Cox Automotive, a leading industry analyst, has warned that by mid-April 2025, North America could see reduced production, tighter supply, and rising vehicle prices. Tesla, despite its domestic production, won’t be immune to these effects due to its reliance on a continental supply chain.

To mitigate long-term costs, Tesla could explore securing domestic mineral rights—an expensive move initially but one that could provide stability if tariffs remain in place for years under the current administration.

However, Tesla CFO Vaibhav Taneja acknowledged during the Q4 2025 Earnings Call that the company remains heavily dependent on global parts sourcing. Given Tesla’s own admission of the impact, consumers should expect price increases as the company adjusts to the shifting trade landscape.

What to Take Away

Overall, the 25% tariff presents a double-edged sword for Tesla. While it may offer short-term advantages by making competitors’ vehicles more expensive, long-term, Tesla will also be impacted. Tesla’s reliance on cross-border parts, coupled with potential retaliatory tariffs, could quickly escalate costs and increase vehicle prices.

As the political landscape around tariffs continues to evolve on what seems to be a daily basis, Tesla will need to navigate these changes carefully. Tesla’s supply chain has been optimized for cost-effectiveness and efficiency. Any changes that happen could be driven by the new tariffs. Tesla may be forced to make changes that prioritize reducing tariff costs, potentially at the expense of efficiency. However, if these policies continue to evolve or if tariffs are later removed, Tesla is then stuck with a less-efficient supply change.

The company will likely address these challenges in detail during the Q1 2025 Earnings Call, though that remains several weeks away.

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