TSB Document:

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

You can still get the detailed info from GMC for this TSB. Call your local GMC dealer's service department & ask for a copy of TSB# PI-0221.

Affected Component: ELECTRICAL SYSTEM

Summary

BUICK/CADILLAC/CHEVROLET/GMC: ROUGH IDLE, ENGINE MISFIRE AND/OR CHECK ENGINE LIGHT ON, DTC P0300 (REPROGRAM ECM). *PE

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