Firefighters from Rochester Hills responded on Monday to a motor home on fire in the parking lot of the Adams Road Walmart.
According to Fire Chief Ron Crowell, the driver said he was driving on M-59 when he smelled smoke and exited the freeway onto Adams Road.
"He exited the motor home and saw the side on fire," Crowell said.
Fire crews extinguished the fire, but the fire and smoke caused extensive damage to the motor home.
The cause of the fire was likely faulty equipment, Crowell said.