Electric carmaker Tesla Motors Inc (NASDAQ:TSLA) said on Friday it had boosted warranty coverage on its Model S sedan, a week after an influential U.S. consumer magazine highlighted problems with the $70,000-plus vehicle.
Tesla announced that the drive unit warranty on the Model S has been increased to match that of the battery pack, bringing its coverage to eight years and "infinite" miles.
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The warranty extension will apply retroactively to all Model S cars produced since 2012, the company said on its blog (http://bit.ly/1AkmSLT), and will have a "moderately negative" effect on its earnings in the short term.
Consumer Reports last week criticized the Model S for having "more than its share of problems," including a variety of electrical issues.
The magazine last year gave the Model S top marks for its "smoothness, effortless glide and clever, elegant simplicity." It purchased the car in January 2013 for $89,650. Tesla fixed the problems on the magazine's Model S under warranty.
In a blog post on Friday, Tesla Chief Executive Elon Musk said of the longer warranty, "in hindsight, this should have been our policy from the beginning of the Model S program."
If the company believes that electric motors are more reliable than the gasoline engines used in most conventional cars, he added, "then our warranty policy should reflect that."
Many current conventional gasoline-powered cars have a standard three-year/36,000-mile warranty.
Korean automaker Hyundai Motor Co 005380.KS, its affiliate Kia Motors Corp 000270.KS and Japanese automaker Mitsubishi Motors Corp 7211.T offer U.S. buyers some of the longest new-vehicle warranties, including standard vehicle coverage for five years or 60,000 miles and powertrain coverage for 10 years or 100,000 miles.
Tesla, which has been trading at or near its record high, closed at $262.01 on Friday on the Nasdaq and was down slightly in after-hours.
(Reporting by Ramkumar Iyer in Bangalore and Paul Lienert in Detroit; Editing by Maju Samuel and Paul Simao)