Unlocking Your Tesla When Power is Off and No Key is Present

Introduction

When you park your Tesla, it usually feels like a car with two operational power systems - the high-voltage battery that drives the car and the 12V battery that handles less critical functions. If the 12V battery goes dead, you might find yourself in a situation where you cannot unlock your car. Here, we explore the process of unlocking your Tesla in such a scenario.

Understanding Tesla's Battery Systems

Teslas have two primary battery systems:

High-Voltage Battery: Located under the car's floor between the front and rear axles, this battery supplies power to the car's motors and drives. Its voltage typically ranges from 350 to 400 volts DC. 12V Battery: Located in the front hood, this battery powers the car's computer, lights, radio, fan, and door locks. If this battery is dead, you can still attempt to unlock your car.

How to Access and Jump Start the 12V Battery

If the 12V battery is dead, you can still open your car's doors. Here are the steps:

Locate the Access Point: On the Model 3 and Y, the access point is found in the front bumper. This location allows you to either jumpstart the battery or unlock the hood, providing access to the 12V battery. Jump Start the Battery: If you have a 9V battery and a small jumper cable, you can connect the 9V battery to the 12V emergency access wires beside the towing device. This will jumpstart the 12V battery and allow you to unlock the doors. Access Cables for Models S and X: For models like the Model S and X, the hood release cables are accessible behind the front wheel well liner. You can manually release the hood to access the 12V battery.

When to Call for Professional Help

If the 12V battery is dead and you don't have a jumper cable or access to another power source, you'll need to call for assistance. Tesla usually warns you when the 12V battery starts to malfunction. However, if the battery has gone completely dead and there is no warning, you should seek professional help.

Alternative Methods and Security Concerns

For an emergency unlock, you can use alternative methods, such as:

Ask for Assistance: If you have someone nearby with the key, ask them to unlock the car for you. Remote Access: If you have a North Korean or Russian hacker connection, or even someone you trust, you can download an app to unlock the car remotely. However, this method comes with significant security concerns, especially in today's data-breached world.

During the Covid-19 pandemic, handing over your phone for touch and tramp poses an even greater security risk, further emphasizing the importance of caution when considering remote access solutions.

In conclusion, while it might seem like a magical car, a Tesla is essentially a car with an electric motor and a battery instead of an engine and gas tank. Understanding its battery systems and having a plan B for when the 12V battery is dead can help you unlock your car in challenging situations.