U0254

Lost Communication With Remote Start Module

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$33–167 (est.)

Symptoms

Remote engine start does not work
Error indication on the dashboard
Lack of response to commands from the key fob
Inability to program autorun

Causes

Broken or damaged wires in the communication circuit
Remote start module malfunction
Module power problems
Corrosion of contacts or connectors
Vehicle CAN bus malfunction

How to Fix

Check the integrity of the wiring harness to the module
Diagnose the power supply of the remote start module
Check CAN bus connections
Scan the module for errors
Replace remote start module if necessary

Related codes

U0253 U0255 U0256