Floyd Baldwin reported missing after he was last seen on Aug. 14 in the 5000 block of Southwind St. on Houston's south side, according to Houston police.
It wasn't yet known if Baldwin was found safe.
Baldwin was believed to be in a gold or tan four-door Toyota Camry hybrid Solara with Texas licence plate GSD-3093.
He has dementia and takes Memantine medication, HPD said.
Baldwin is 5 feet, 4 inches tall and weighs 115 pounds.