FixVault
Home
›
Jeep
›
2016
›
Grand Cherokee SRT
›
Repair and Diagnosis
›
Engine Performance
›
System
›
6.4L - DTCS P2172 To U1440
›
DTC Troubleshooting
›
U1186-Lost Communication With Adaptive Cruise Control Module
›
Set Condition
Set Condition
The Powertrain Control Module (PCM) doesn't receive a bus message from the Cruise Control Module for a specific amount of time.