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

November 17: Chevy Express and GMC Savana Vans Recalled For Multiple Issues recalls | 6 days ago
November 13: GM Recalls 514,000 Vehicles After Rear Wheels Lock-Up recalls | 10 days ago
October 26: Recall: 2024 GMC Canyon Headlights Flicker recalls | 28 days ago
October 12: GM Vortec Oil Consumption Lawsuit Dismissed news | 42 days ago
September 28: GM Shift to Park Class Action Lawsuit Debated in Ohio news | 56 days ago

GMC TSB #16-NA-380

2021 GMC Sierra 3500

Summary: This service bulletin provides a diagnostic aid procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.

Click a tab for more information.

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