What causes a U0345 code?

U0345 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 U0345 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with U0345 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

U0345

Software Incompatibility with Parking Assist Module B

What it means

Secondary software conflict in the parking assistance system. This usually results from an incorrect flash update to the controller.