Service bulletin 18NA092
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10137424 |
| Published by NHTSA | 2018-05-21 |
| Manufacturer's number | 18NA092 |
| Manufacturer's date | 2018-03-28 |
| NHTSA component | EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:WIRING |
NHTSA's summary
This technical bulletin provides a procedure to repair a bad terminal and re-route the harness to prevent the future event of Radio Audio Randomly Cuts Out DTC U18B4 - Lost Communication with Radio on Ethernet Bus from happening again.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Electrical system, Equipment and accessories, Wiring and fuses
Trouble codes named
U18B4
| GMC TERRAIN | 2018 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
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|---|---|
| PIT5748 | 2020-08-10. Service bulletin. This preliminary information makes the technician aware of a trailer lighting concern if the incorrect harness is used to wire trailer. |
| 100089005G | 2019-05-13. Service bulletin. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs. |
| 100089005H | 2019-03-18. Service bulletin. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs. |
| PIP5563 | 2018-05-21. Service bulletin. This Preliminary information communicates of possible chafed wire in the engine harness that is routedon top of the trans assembly. |