U0080 on Jeep vehicles

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 U0080. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

• 9100786 Service bulletin
  2026-03-30 · Electrical System
• TBM2.0H Setting U0080-00. Do not replace TBM ECU or SGW. Under certain conditions, SGW Module may take longer to establish Ethernet communication after boot up. If it takes longer than 30 seconds, The TBM2.0H module will set DTC U0080 - Ethernet Bus 1. As soon as SGW responds, the TBM2.0H will demature the DTC and move it to STORED. This issue should not cause any customer related symptoms. Do not
• 9100786 Rev 1 Service bulletin
  2026-05-14 · Electrical System
• TBM2.0H Setting U0080-00. Do not replace TBM ECU or SGW. If replacement is determined, Verify "Z" part number availability. Order a "Z" part number for all Exchange Orders, Warranty, Mopar, Customer Pay and Service Contract. Order "68" part number for New, Unsold units only. Under certain conditions, SGW Module may take longer to establish Ethernet communication after boot up. If it takes longer t

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.