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TSB Document:
  • Sorry, the NHTSA has not posted this TSB document yet.

You can still get the detailed info from Chevrolet for this TSB. Call your local Chevrolet dealer's service department & ask for a copy of TSB# PIE-0420A.

Affected Component: EQUIPMENT:ELECTRICAL

Summary
Engineering Information – Malfunction Indicator Lamp Illuminated and DTC P0421 Set

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Date Published
OCT 01, 2017
NHTSA TSB #
10190370
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