What causes a U3417 code?

U3417 can be triggered by several issues — see the verified probable causes and step-by-step diagnostics shared by mechanics and owners on OBDIY.

Can I drive with a U3417 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with U3417 active.

Follow the step-by-step diagnostic on this page, then read the verified fixes contributed by other Heavy Truck owners — the answer marked "Verified Cause" worked for the original poster.

OBDIY

OBD-II

U3417

Manufacturer-specific network code U3417

What it means

Lost communication with the Radar or ADAS (Advanced Driver Assistance System) module. The truck loses its ability to perform collision mitigation or adaptive cruise.