Software Update 2027 Yukon/Yukon XL Software Update — Telematics 2026.3

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Over-the-air software update · Telematics 2026.3

This is an over-the-air software update notice. GMC filed it with NHTSA to describe a software release; it is not a recall unless it says so. Delivery depends on your vehicle's connectivity and settings.

Published: Oct 3, 2026
Applies to: Yukon, Yukon XL (2027 model year)

Summary (official text)​

• Improved reliability of connected services, including OnStar, Wi-Fi hotspot, and navigation • Enhanced emergency calling performance • Improvements to maintain access to Super Cruise following vehicle software updates • Improved battery management during vehicle software updates

Sources​

• Telematics 2026.3 (PDF, NHTSA document 11038823) — Oct 3, 2026

Details from NHTSA as of Oct 31, 2026. If NHTSA or GMC revises this notice, this post is updated and significant changes are noted in a reply. The linked documents are the authority, and a dealer can confirm whether it applies to your VIN.

Has this update reached your vehicle? Share your model year and anything that changed after it installed.

 

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