The “Replace Fuse” warning in a 2017 Tesla Model S typically refers to a pyro fuse or main battery pack fuse, a crucial safety component that protects the high-voltage systems of the car. This fuse, while designed for a lifespan of about 10 years, may require replacement earlier, prompting the warning on the vehicle’s screen.
What Causes the Fuse Warning?
The fuse warning is often triggered by a time-based mechanism integrated into the car’s electrical system. Over time, or due to particular conditions, the system will flag the fuse as needing replacement to ensure the continued safe operation of the battery pack. If the fuse is not replaced in a timely manner, the vehicle will eventually disable its battery pack, rendering it undrivable
How to Replace the Tesla Model S Pyro Fuse?
While replacing the fuse in a Tesla Model S seems straightforward, it is a specialized task due to the nature of the high-voltage systems involved. Here’s a breakdown of the process:
- Locate a Tesla Service Center: Tesla’s recommended method for fuse replacement is through a Tesla Service Center, as it requires trained technicians to handle the high-voltage components safely.
- Disconnect the Battery: The process begins with disconnecting the vehicle’s battery to prevent electrical shocks or further system damage. This requires special tools and knowledge of Tesla’s electrical systems.
- Remove the Old Fuse: The fuse, typically located near the battery pack or in a dedicated compartment, will need to be removed. This is often a challenging step that involves removing other components to access the fuse.
- Install the New Fuse: Once the old fuse is removed, a certified replacement is installed. This may include verifying the new fuse’s specifications to ensure compatibility with the car’s system.
- System Reset and Testing: After the fuse is replaced, the system needs to be reset, and the car must undergo testing to ensure the high-voltage systems are functioning correctly.
![[EN] Pyrotechnic fuse replacement on a Tesla Model S | Masters of Motion](https://i.ytimg.com/vi/nosz4Miz-yk/hqdefault.jpg)
What is The Cost of Replacement Tesla Model S Pyro Fuse?
The cost of replacing the pyro fuse can vary significantly based on location, labor rates, and whether the vehicle is under warranty. On average, Tesla owners have reported prices ranging from $300 to $700 for the replacement. It’s important to note that some service centers may offer different pricing depending on factors like the specific model or the battery type.
Timing and Recommendations
When the fuse warning first appears, Tesla owners are typically given a six-month grace period to replace the fuse. Ignoring the warning for too long may lead to the vehicle disabling the battery pack. Therefore, it is highly recommended that owners address the issue promptly by visiting a Tesla Service Center.
