Onyx Black 2019 GMC Yukon SLT 4WD 6-Speed Automatic Electronic with Overdrive EcoTec3 5.3L V8 15/21 City/Highway MPG 4WD. Thank you for taking the time to look at this great-looking 2019 GMC Yukon *Disclaimer* Vehicle pricing includes all offers. Tax, Title, Doc Fee, and Tags not included in vehicle prices shown and must be paid by the purchaser. While great effort is made to ensure the accuracy of the information on this site, errors do occur so please verify information with a customer service rep. This is easily done by calling us or by visiting us at the dealership.