# Service bulletin PIT6478

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: 11027936
- Published by NHTSA: 2026\-02\-01
- Manufacturer's number: PIT6478
- Manufacturer's date: 2026\-01\-28
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

This Preliminary information communicates to the field about a normal condition about a message that appears when using a NFC card to start the vehicle when a key fob or a digital key device is not present.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11027936-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11027936-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Vehicles listed

- 2026 BUICK ENCLAVE
- 2026 CADILLAC CELESTIQ
- 2026 CADILLAC ESCALADE ESV IQ
- 2026 CADILLAC ESCALADE ESV IQL
- 2025 to 2026 CADILLAC LYRIQ
- 2026 CADILLAC OPTIQ
- 2026 CADILLAC VISTIQ
- 2026 CHEVROLET SILVERADO EV
- 2026 CHEVROLET TAHOE
- 2026 CHEVROLET TRAVERSE
- 2026 GMC ACADIA
- 2026 GMC SIERRA EV
- 2026 GMC YUKON
- 2026 GMC YUKON XL

JSON: [/v1/bulletins/11027936](/v1/bulletins/11027936)

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