Tesla Roadster

OVMS System Installation

This product is another fine example of the skills and dedication in the Tesla Roadster Owners community, developed by three talented members, Michael Stegen, Mark Webb-Johnson, and Sonny Chen, who built OVMS as an open source project, and as a way to access a Roadster through cell phone.

The Open Vehicle Monitoring System (OVMS) is continually being enhanced, and has replaced the defunct 2G nework built into the Roadster for remotely monitoring a variety of vehicle statistics via web interface or smartphone applications.

This kit includes a SIM5360 3G module, OVMS data cable, and OpenVehicles OVMS GSM antenna. When installed in a Tesla Roadster, not only does this device provide user data, but also allows for diagnostic access for advanced troubleshooting and problem resolution.

GMC stocks this product, is able to configure it to your Roadster, and available to install it in your vehicle.

For free Tech Support – ev@gruber.com or 623-433-8500

With this kit you will receive:

OVMS System – We recommend installing this under the passenger footwell near the Roadster’s VMS module, since it plugs into the diagnostic port.

Custom Cable – This cable is specifically designed for US based Roadsters.

GSM Antenna – This antenna is best mounted on the lower edge of the passenger windshield which allows the coax cable to be run to the OVMS system and hidden from view.

TPMS Add-on – This unique add-on board allows control of 2.x Roadster TPMS functions.

SIM Card

US Roadster Cable

GSM Antenna

TPMS Add-on Kit

SIM Card

Tesla Service Center

Gruber Motor Company is an independent Electric Vehicle Service Center specializing in Tesla vehicles, with extensive experience in the diagnostics, repair, maintenance, and restoration of Tesla electric vehicles.

As electric vehicles continue to transform the automotive industry, servicing them requires a new kind of expertise. Today’s advanced EV service centers increasingly combine traditional automotive repair with the capabilities of an electronics and engineering laboratory. Gruber Motor Company brings decades of experience servicing critical power systems, high-voltage electronics, battery systems, and power conversion equipment—technologies that share many of the same fundamentals found in modern electric vehicles.

Operating from our 18,000-square-foot service facility in Phoenix, Arizona, our engineers and technicians provide advanced EV diagnostics and repair while maintaining the personalized customer service of a traditional specialty automotive shop. We are particularly known for our expertise with the original Tesla Roadster, including battery systems, power electronics, diagnostics, component repair, restoration, and vehicle preservation.

In addition to specialized Tesla and EV services, Gruber Motor Company provides complete automotive support, including tires, brakes, suspension service, detailing, paint correction, powder coating, paint protection film (clear bra), cosmetic restoration, and vehicle upgrades.

Whether your Tesla requires routine maintenance, advanced electrical diagnostics, battery or power-electronics repair, or a comprehensive restoration, our goal is simple: provide knowledgeable service, clear communication, and solutions that keep these pioneering electric vehicles on the road.

We are proud of our EV Service Center of the Future

Our EV Lab is where Software and Electronics repairs take place

Gruber Motor Company
203 West Lone Cactus
Phoenix, Arizona 85027
EV@GRUBER>COM

602-863-2655 X500

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