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May 28, 2026 Over-the-air update

Quality improvements include: -Addresses Key off load battery usage caused by the Telematics Control Unit...

Lincoln technical service bulletin TCU-26.2.11.4 Navigator for 2025-2026 Lincoln Navigator.

Bulletin number
TCU-26.2.11.4 Navigator (TCU-26.2.11.4)
Component
Electrical system
Summary
Quality improvements include: -Addresses Key off load battery usage caused by the Telematics Control Unit Wi-Fi not going to sleep when the vehicle is turned off

Owners of these vehicles have filed 3 complaints in the electrical category.

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