Jeep Cherokee 2024–2026 — technical service bulletin
Bulletin 9100786 · NHTSA communication 11031247 · issued Mar 30, 2026
Technical service bulletin
communication type
Electrical System
component
2024–2026
model years
22
vehicle entries
Official summary
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 replace the following TBM Part Numbers: WL: 68639445AF,68637489AE,68663479AE. WS: 68734941AA,68729188AC. EJ: 68592344AI. KM: 68592343AL,68735975AD. DT: 68634362AJ,68624784AF,68624784AE,68735493AB,687
Vehicles covered
- 2026 Jeep Cherokee
- 2024 Jeep Grand Cherokee
- 2025 Jeep Grand Cherokee
- 2026 Jeep Grand Cherokee
- 2024 Jeep Grand Cherokee 4XE
- 2025 Jeep Grand Cherokee 4XE
- 2026 Jeep Grand Cherokee 4XE
- 2024 Jeep Grand Cherokee L
- 2025 Jeep Grand Cherokee L
- 2026 Jeep Grand Cherokee L
- 2025 Jeep Grand Wagoneer
- 2026 Jeep Grand Wagoneer
- 2026 Jeep Recon
- 2025 Jeep Wagoneer
- 2026 Jeep Wagoneer
- 2024 Jeep Wagoneer S
- 2025 Jeep Wagoneer S
- 2026 Jeep Wagoneer S
- 2024 RAM 1500
- 2025 RAM 1500
- 2026 RAM 1500
- 2026 RAM 2500
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.