Sometimes the factory radio just doesn’t cut it in your new vehicle. While swapping out the sound system, and other features – rims, seat covers, tires – is an established way for consumers to put their personal stamp on cars, one automaker is asking them not to, because, you know, it could pose a safety risk, which isn’t good for business.

Business Insider reports that Tesla’s 2014 annual report featured an interesting twist on the risks facing the company: the personalization of the Model S.

While it is reasonable to think that consumers customizing an electric car’s charging infrastructure  and wiring could very well affect the way the car operates, things like raised seats and new tires don’t exactly sound devastating to the company – or unsafe for customers.

But according to Tesla’s filing they can be.

“We are aware of customers who have customized their vehicles with after-market parts that may compromise driver safety,” the company reports. “For example, some customers have installed seats that elevate the driver such that airbag and other safety systems could be compromised. Other customers have changed wheels and tires, while others have installed large speaker systems that may impact the electrical systems of the vehicle. We have not tested, nor do we endorse, such changes or products.”

The company goes on to say that modifications could reduce the safety of vehicles, and that any adverse publicity from such events would “negatively affect our brand and harm our business, prospects, financial condition and operating results.”

Tesla to owners: Please don’t pimp your rides [Business Insider]

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