The government says if you own a Segway, you should stop riding it immediately.
The company's calling back more than 23,000 of its personal transporters because of a software glitch that could throw the wheels into reverse, causing riders to fall off.
The consumer product safety commission says people should stop using the self-balancing scooters immediately.
It says Segway has received six reports of people suffering head and wrist injuries.
The company is offering a free software upgrade to fix the problem.
This is the second time the scooters have been recalled since they first went on sale in 2002.