2020 GMC Yukon Denali Front Radar Calibration
Learn how to perform a front radar calibration on a 2020 GMC Yukon Denali. This video is sponsored by Hunter Engineering Co.
Code Reader Podcast: P0420 & P0430
This TSB was released by General Motors, covering most of their large SUV’s and vans that have been produced from 2002 and up. The related DTCs that a technician may find are P0420 and P0430, Catalyst Efficiency Below Threshold.