The 2013-'15 Chevrolet Spark is included in the recall.
The affected vehicles are equipped with a Bring Your Own Media radio.
"The affected radios may fail to provide an audible warning chime when the driver fails to fasten their seatbelt or if the driver leaves the key in the ignition," NHTSA said in its recall summary. "Without audible indicators, the driver may not fasten their seatbelt, increasing the risk of a crash."
There are "no incidents" in the field, GM told federal safety regulators.
Edmunds says: Owners of these vehicles should wait for their official recall notice and then schedule a service appointment with their dealer. But if you have an immediate concern, it's best to contact your dealer now.