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Rear wheel lock-up can increase the risk of a crash.

Power Train — Automatic Transmission — Control Module — Software
Power Train — Automatic Transmission — Fluid/Lubricant — Valves/Valve Body

Summary
General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines. The transmission control valve may fail and cause the rear wheels to lock-up.
Actions
Dealers will install new transmission control module software, free of charge. GM will provide a special coverage program to cover the repair of transmissions that are identified by the remedy software as containing a defective control valve. Owner notification letters are expected to be mailed December 9, 2024. Owners may contact GM customer service at 1-888-988-7267, Cadillac customer service at 1-800-458-8006, GMC customer service at GMC 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242454440.
Documents (10)

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Date Announced
OCT 24, 2024
Vehicles Affected
461,839
GMC Recall #
N242454440
NHTSA Campaign #
24V797000
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