Mobile EV Diagnostics & Repair

Factory-level mobile service for Tesla, Rivian, and all major EVs. We come directly to your home, hotel, or remote location. Serving the Mariposa and Yosemite Gateway region.

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A white Tesla Model 3 driving on a highway during sunset or sunrise with a mostly cloudy sky.
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EV Services

A close-up view of a car engine bay showing various components, including an electric vehicle battery and wiring.

  • Cabin filter replacement, coolant system service, brake service, flat tire repair, etc.

  • Roadside Emergency Mobile Level 2 Charging (Yosemite Corridor)

  • Unresponsive Vehicle & Dead 12V/16V Battery Replacement

  • CAN bus troubleshooting, diagnose firmware faults, pinpoint sensor failures, locate and repair wiring harness damage, thermal system repairs and deep module diagnostics using specialized EV scan tools.

  • Replace 12v/16v auxiliary batteries, replace controllers/modules, identify and correct phantom drain issues, check LV battery health and clear BMS faults.

  • Isolation fault tracing, high-voltage interlock loop (HVIL) diagnostics, penthouse diagnostics, cable replacements and other HV services.

  • Get a detailed report on battery health and general vehicle condition.

Why Sierra Mobile EV Repair?

I’m Kyle Kitchen, founder of Sierra Mobile EV Repair.

Before launching a mobile service dedicated to keeping your electric vehicle running smoothly, I spent many years at Tesla as a Mechatronics Engineering Technician Lead. During my time on Tesla’s prototype and software teams, I had a direct hand in the development and production of the Model 3, Model Y, S/X Refresh, Cybertruck, Semi, Autopilot HW3/HW4, heat pump system, and supercharging.

As an independent specialist, I now bring that same factory-level engineering expertise directly to you. Whether you need complex software troubleshooting, high-voltage diagnostics, or routine maintenance, you deal directly with one of the people who helped pioneer these systems and knows them inside and out.

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Ready for Service?

Pick a consultation time that works for you, tell us where your vehicle is located and what issue you’re experiencing, and we’ll handle the rest.

Need urgent service? We’ve got you covered. Call or text us at (209) 347-1057 and we’ll do what we can to help.

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Interior of an electric vehicle's battery pack with various components, wiring, and electronic parts, alongside a warning sign that reads 'Danger High Voltage'.