Sorry, the NHTSA has not posted this TSB document yet.
You can still get the detailed info from Chevrolet for this TSB. Call your local Chevrolet dealer's service department & ask for a copy of TSB# 17-NA-320.
Condition
Information on Outside Door Handle or Lock Cylinder Cover Loose, Falling Off
Some customers may comment on any of the following:
• Outside door handle loose.
• Outside door handle pulls out of door.
• Outside door handle fell off.
• Outside door handle lock cylinder cover fell off.
• Outside door handle lock cylinder cover loose.
Cause
The cause of the condition may be either of the following issues:
1. Door handle bracket fracture due to the door lock cylinder cover assembly not being fully seated during assembly.
2. Fastener not being torqued to proper specification.