The initial impression given by the GMC Yukon is one of strength and safety. It's big, true--but it also earns some excellent crash-test scores.
A stout SUV, the Yukon has excellent protection for occupants. The National Highway Traffic Safety Administration (NHTSA) gives it an overall score of four stars. Digging deeper, the Yukon actually gets five-star scores in every crash test, but four stars for the mathematically derived rollover test since it's such a tall vehicle.
The Insurance Institute for Highway Safety hasn't tested the current Yukon.
Standard safety gear on all Yukon models includes dual front, side, and curtain airbags that cover all rows of seats; traction and stability control; OnStar; and tire pressure monitors. On the options list, there are blind-spot detectors, parking sensors, and a rearview camera--not the wraparound kind being pioneered now by Infiniti and Land Rover, but a higher-res one with a crisp display.
The Yukon's tall stance might be an issue for some shorter drivers as they park or change lanes. However for that there are large side mirrors.