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August 14, 2025 Service campaign

Certain vehicles will receive a software update to add to the existing Check Engine Light a Driver...

Chevrolet technical service bulletin N252510321 for 2021-2024 Chevrolet Silverado 1500, 2022-2023 Chevrolet Tahoe and 2021-2024 GMC Sierra 1500 and others.

Bulletin number
N252510321 (N252510321)
Component
Unknown or other
Summary
Certain vehicles will receive a software update to add to the existing Check Engine Light a Driver Information Center (DIC) warning message if DTC P0016 sets. Dealers will reprogram the Engine Control Module (ECM). Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.

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