In the email, Tesla said it had, “observed excessive corrosion in the power steering bolts,” but that the problem was most prevalent in colder climates where road salt is used.
“If the bolts fail, the driver is still able to steer the car, but increased force is required due to loss or reduction of power assist,” Tesla wrote in the email to customers. “This primarily makes the car harder to drive at low speeds and for parallel parking, but does not materially affect control at high speed, where only small steering wheel force is needed.”
Tesla said owners do not need to stop driving their cars if they haven’t experienced any problems. The company said it would inform Model S owners when a retrofit, which is estimated to take an hour to install, is ready in their area.
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