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March 10, 2021 Service bulletin

Customer Satisfaction Program

Chevrolet technical service bulletin N212329850 for 2021 Chevrolet Silverado 1500 and 2019-2020 Chevrolet Silverado 4500.

Bulletin number
N212329850
Component
Electrical system
Summary
Customer Satisfaction Program. On certain vehicles equipped with the provisions ? electrical switch bank (SEO) (RPO UEH), may under certain conditions, have circuit breakers inside an auxiliary control box that could trip due to the high temperature that may accumulate inside the vehicle and control box. Dealers are to replace (7) circuit breakers with equivalent rated fuse and the 5 Amp circuit breaker with a 10 Amp fuse and apply the updated labels.

Owners of these vehicles have filed 113 complaints in the electrical category.

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