A $500 reward is being offered for the male dog, according to FidoFinder.com.
Bean was last seen on the northbound side of I-95 in East Norwalk near Exit 16, according to a Facebook post.
His owner, who lives on Long Island, was in a car accident and the dog jumped out of the car.
"Desperate to find, please help!" the owner posted on Facebook.
Bean is an all white Chihuahua with a black spot on his back by his tail. He has a collar on with a tag.
If you have information on Bean or if you find him, call 631-599-4111 or 631-912-5803.
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