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TSB Document:

Affected Component: EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER

Summary
Customer Satisfaction Program - certain vehicles equipped with the Duramax diesel 6.6 liter engine and the optional engine-block heater cord, may have a condition in which the block heater cable function was disabled. Dealers will replace the engine block heater and cord.

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Date Published
MAR 16, 2022
NHTSA TSB #
10209106
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