Service bulletin 21NA127
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 | 10214208 |
| Published by NHTSA | 2022-06-21 |
| Manufacturer's number | 21NA127 |
| Manufacturer's date | 2022-01-21 |
| NHTSA component | EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE |
NHTSA's summary
This technical bulletin provides repair information to correct a customer concern of Head Up Display (HUD) Blank, Non-Responsive to Brightness, Aim, or Page Controls, DTC U1518 Set.
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, Software
Trouble codes named
U1518
| CADILLAC XT4 | 2019, 2020, 2021, 2022 |
|---|---|
| CADILLAC XT5 | 2019, 2020, 2021, 2022 |
| CADILLAC XT6 | 2020, 2021, 2022 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| PIT5954C | 2024-04-15. Service bulletin. This Preliminary information communicates a Radio software update resolution for OnStar LED Red And Wifi Hotspot Inoperative After Remote Vehicle Start concern. |
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| 20-NA-132 | 2024-04-05. Service bulletin. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements. |
| PIP5632G | 2023-01-30. Service bulletin. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question. |
| PIP4902Q | 2023-01-30. Service bulletin. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question. |
| PIP5814 | 2023-01-30. Service bulletin. This Preliminary information communicates that there some service parts released to dealers missing software. |
| 21NA024 | 2022-06-21. Service bulletin. This technical bulletin provides repair information to correct a customer concern of Service Engine Soon MIL Illuminated with DTC P2B87 Set. |
| 21NA256 | 2022-02-14. Service bulletin. This service bulletin provides repair information for dealers/technicians to correct a customer concern of a Malfunction Indicator Lamp Illuminated with DTC P26BB Set. |
| PIP5675G | 2022-01-24. Service bulletin. This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history. That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing and related direction based on the results. |
| 21NA252 | 2021-12-27. Service bulletin. This technical bulletin provides repair information to correct a customer concern of Electronic Park Brake Applying Intermittently After Vehicle Shutdown without DTC?s. |
| 20NA171 | 2021-12-27. Service bulletin. This service bulletin provides repair information to correct a customer concern of software issues with Radio Software Version V808. |