U0155 on Jeep vehicles A module has stopped hearing from the instrument cluster

A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.

Bulletins and campaigns Jeep filed with NHTSA whose summary names U0155. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

• 9100641 Service bulletin
  2025-08-05 · Power Train
• Symptoms/Condition: Shifter reports loss communication AND NO OTHER MODULES report the condition. Diagnostic: Please make sure ONLY shifter reports loss communication. If there are other modules reporting loss communication, then follow the existing service procedure Repair Procedure: 1. Verify Complaint - ESM reports a Loss of Communication (LOC) DTC, but no other modules do. - If multiple module
• S2108000201 Service bulletin
  2021-08-24 · Equipment — Electrical — Radio/Tape Deck/Cd Etc.
• R1 High Radio Set Code U0155 Lost Communication With Cluster
• S2108000201 Service bulletin
  2021-08-24 · Equipment — Electrical — Radio/Tape Deck/Cd Etc.
• R1 High Radio Set Code U0155 Lost Communication With Cluster
• S2308000122 Service bulletin
  2023-10-04 · Engine And Engine Cooling — Engine — Crank/Camshaft Position Sensor
• Vehicle is a no crank/no start with the following DTCs, as well as a no crank/no start condition: U0164, U0140, U0151, U0155

A stored code names the test that failed, never the part that caused it. The record above is what Jeep and its owners have filed about it; the code’s page across every make has the whole file.