See also:

When to Check and Change Automatic Transmission Fluid
It is usually not necessary to check the transmission fluid level. The only reason for fluid loss is a transmission leak or overheated transmission. If a small leak is suspected, then use the followi ...

OnStar®
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. See OnStar Overview on pag ...

Going & Stopping
The biggest drawback I found with the Yukon was the powertrain. A 380-horsepower, 6.2-liter V-8 is standard in the Denali, but it was sluggish in almost every passing situation I could simulate. T ...