Tesla denies safety problems with Model S suspensions

This June 22, 2012 file photo shows a Tesla Model S outside the Tesla factory in Fremont, Calif.
This June 22, 2012 file photo shows a Tesla Model S outside the Tesla factory in Fremont, Calif.

DETROIT (AP) - Electric car maker Tesla Motors is denying allegations there are safety problems with its vehicle suspensions.

The Palo Alto, California, company says one of its cars had an abnormal amount of rust on a suspension part, a problem it hasn't seen in any other car.

The U.S. National Highway Traffic Safety Administration said Thursday it asked for information from owners and Tesla about Model S suspension failures. The agency has not opened a formal investigation.

Tesla said in a statement Friday the Model S with the rust had more than 70,000 miles on it and was caked in dirt when picked up The company says it has given the agency all relevant information.

NHTSA said it's also concerned Tesla has asked owners to sign nondisclosure agreements about safety issues. The agency said such agreements could prevent owners from reporting problems to the government.

However, Tesla also denied that. The company says it has asked customers to sign a "Goodwill Agreement" when it agrees to fix a problem that wasn't the fault of the car.

Those agreements make sure repairing the car is not used against the company in court, Tesla said. "This agreement never comes close to mentioning NHTSA or the government and has nothing to do with trying to stop someone from communicating with NHTSA," Tesla's statement said.