General Motors is recalling nearly 200,000 Hummer SUVs worldwide because ventilation fan motor controls can overheat and possibly start a fire.
The automaker also will recall about 51,000 Chevrolet Spark and Sonic models to repair a problem with the radio software that can lock the display screen in the OnStar navigation mode.
The first recall covers 165,000 Hummers in the U.S. and an additional 31,000 in other countries. The models affected are 2006 through 2010 Hummer H3s and 2009 and 2010 H3Ts.
The company says that the module that controls the heating and air conditioning blower motor speed can overheat when operated for a long time, melting nearby plastic and increasing the risk of a fire. The company reported three minor burns caused by the problem, but no crashes.
GM said it is unaware of any crashes, injuries or fatalities related to the Spark and Sonic radio problem.
On the Hummers, dealers will replace the faulty module and wiring harness at no cost to owners.
GM shut down Hummer in 2010 after a proposed sale to a Chinese company fell through.
But the company agreed to honor warranties on the vehicles, which were assembled in a factory in Shreveport, La. The brand once had nearly 400 dealerships worldwide, including 153 in the U.S.