Is it time to move on? Support NPR & the programs you love. Donate your old car in minutes through the CarTalk Vehicle Donation Program.

January 19: GM 6L90 Transmission Failures Seem to Be Over investigations | 4 days ago
January 18: GM L87 Engine Failures Investigated in Nearly 877,000 Vehicles investigations | 5 days ago
December 19: GM Transmission Class Action Lawsuit Update: Appeals Court Ruling news | 35 days ago
December 3: GM Truck Tailgate Recall Involves 150,000 HD Trucks recalls | 51 days ago
November 17: Chevy Express and GMC Savana Vans Recalled For Multiple Issues recalls | 67 days ago

GMC TSB #21NA124

2000 GMC Yukon

Summary: This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.

Click a tab for more information.

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