Despite predictions that plug-in hybrid and all-electric vehicles would increase rapidly due to climbing gasoline prices, in 2012, their sales were a mere 52,172 units according to the Automotive News Data Center.

That’s a drop in the ocean when viewed in the light of total new vehicle sales in the U.S. market, which surpassed 14.5 million last year. On the other hand, that figure accounts for a three-fold increase compared to 2011.

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Last month General Motors informed its Chevrolet dealers of the requirements they should fulfill if they want to keep selling and servicing the Volt from January of 2013.

Among the prerequisites for Chevy dealers is an additional US$5,100 they had to pay for specialized tools needed to service the extended-range hybrid, the bulk of which, US$4,735, accounts for a battery de-powering tool. This is needed to drain the battery and remove sections of it, rather than the whole pack, and send them back to GM for repair.

It may not seem important but it was big enough of a deal for some dealers to stop carrying the Volt.

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When Chevrolet Volt owner and gm-volt.com forum member "1RiverMan1" came home on October 19, he heard a phone message from his Volt advisor (sic) informing him about a potential problem with some of GM’s 2013 MY extended-range hybrids.

The issue was that on some cars, the electric motor for no apparent reason at all, stopped working while on the move. The advisor said that the steering and brakes of the Volt still worked, but added that if it were to occur, the driver must coast to a stop, power the car off, wait for 2-5 minutes and then power it up again.

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Plug-in hybrid vehicles claim to be much more fuel efficient, and thus cheaper to run, than regular models powered only by international combustion engines.

There’s no such thing as a free lunch, though; in the case of plug-in hybrids, you have to factor in the energy consumed to charge the battery at your home, which adds to the electricity bill.

General Motors’ OnStar service is currently testing an application that will inform Chevrolet Volt owners about the cost of charging their extended-range plug-in hybrid.

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