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Envoy 4WD V8-5.3L VIN P
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Drivetrain - Service 4WD Lamp ON/DTC C0374 Set
Drivetrain - Service 4WD Lamp ON/DTC C0374 Set
This TSB number 05-04-21-003B, dated 08/20/07 has been superceded by TSB number 05-04-21-003C , dated 04/15/08