PI 2021–2027 Sierra 1500/Sierra 2500HD/Yukon/Yukon XL Unknown or Other — PIT6564

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Preliminary information · Preliminary information PIT6564

This is a preliminary information note, not a recall. GMC sends these to dealer technicians about a known condition, often while a fix is still being worked out. They are not repair orders, and they don't by themselves change what is covered.

Published: Nov 6, 2026
Applies to: Sierra 1500: 2021–2026 · Sierra 2500HD: 2021–2027 · Yukon: 2021–2027 · Yukon XL: 2021–2027

Summary (official text)​

Beginning with 2026 model year production, the floor console/armrest lamp design was changed by removing the tilt-switch ball. As a result, the lamp remains illuminated when the floor console compartment lid is closed. The BCM turns the lamp off after the ignition is switched off to prevent battery rundown. This PI is to inform dealers of the change in the lamp and operation of the lamp following repairs.

Sources​

• PIT6564 (PDF, NHTSA document 11039888) — Nov 6, 2026

Details from NHTSA as of Nov 11, 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.

Have you experienced this issue with your vehicle? Let us know your model year and engine, plus any diagnosis or repair details.

 

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