Investigation EA97013: Vehicles

Status

CLOSED

Opened

May 30, 1997

Closed

Nov 23, 1999

Model years

—

Subject

Dysfunction turn signal assembly

Component: Exterior lighting

Summary

Several turn signal assembly modification have been identified during the course of the service query investigation.the subject switches are sold to 5 truck oem's.during the course of the sq, several failure modes were identified that would render the turn signal inoperative.these turn signal assemblies are used on class 6, 7, and 8 heavy duty trucks and tractor trailer type vehicles.

An NHTSA investigation looks into whether a safety defect exists. Opening one is not a finding. Outcomes can include a recall, closure without action, or further inquiry.