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Can a faulty battery cause loss of power steering at low speeds?

I have a 2010 Hyundai Santa Fe, which is regularly serviced at my local dealership. Approx. four weeks from my latest service I am experiencing intermittent loss of power steering at low speeds. Once I had to call road service to restart the car due to a dead battery when I pulled over to reset the car after all the warning lights on the dash came on. The battery is only 30 months old after being replaced by my Hyundai dealer during a service. The battery has a 36-month manufacturer warranty written on it, however, the dealer has stated that they only offer 2-year warranty. Can a faulty battery cause loss of power steering at low speeds? Could it affect the power- assisted braking also?

The power steering is an electrical system, so a problem with the battery could affect the power assistance. You should still be able to steer the car even without power assistance. It won’t affect the braking.

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