GMC TSB #PIT5734C

2020 GMC Sierra 1500

TSB Document:

Affected Component: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:HEATER CORE

Summary
This Preliminary information communicates an issue with poor heater performance and advises dealerships to inspect the heater core inlet and outlet hoses for being twisted or kinked.

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Date Published
JAN 26, 2022
NHTSA TSB #
10208061
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