Find out in 30 SECONDS or less if it qualifies for a REFUND or a CASH SETTLEMENT.

January 19: GM 6L90 Transmission Failures Seem to Be Over investigations | 5 days ago
January 18: GM L87 Engine Failures Investigated in Nearly 877,000 Vehicles investigations | 6 days ago
December 19: GM Transmission Class Action Lawsuit Update: Appeals Court Ruling news | 36 days ago
December 3: GM Truck Tailgate Recall Involves 150,000 HD Trucks recalls | 52 days ago
November 17: Chevy Express and GMC Savana Vans Recalled For Multiple Issues recalls | 68 days ago

GMC TSB #PIP5955

2024 GMC Sierra 2500

Summary: This Preliminary information communicates to the dealer technician a possible calibration update for DTC P0402 as well as symptoms associated with it.

Click a tab for more information.

Find something helpful? Spread the word. Share on Facebook Retweet this page Email this page