Cadillac TSB #21NA130

2020 Cadillac CT4

TSB Document:

Affected Component: EXTERIOR LIGHTING

Summary
This service bulletin provides a repair procedure to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated, DTC P31E8, P31DB, P31D4 and/or P31E2 Set.

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Date Published
MAY 28, 2021
NHTSA TSB #
10199283
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