For enhanced safety, the front and rear seat shoulder belts of the Mercedes G-Class have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The GMC Yukon XL doesn’t offer pretensioners for its second-row seat belts.
The G-Class’ pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Yukon XL doesn’t offer pre-crash pretensioners.
The Mercedes G-Class has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The Yukon XL doesn’t offer knee airbags.
To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the G-Class. But it costs extra on the Yukon XL.
The G-Class has a standard blind spot warning system that uses sensors to alert the driver to objects in the vehicle’s blind spots where the side view mirrors don’t reveal them and moves the vehicle back into its lane. A system to reveal vehicles in the Yukon XL’s blind spot costs extra.
To help make backing out of a parking space safer, the G-Class has standard Rear Cross-Traffic Alert and Active Brake Assist automatically engages the brakes to help avoid a collision. GMC charges extra for Rear Cross Traffic Alert on the Yukon XL and the Yukon XL’s Rear Cross Traffic Alert does not include automatic braking.
The G-Class’ driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The Yukon XL doesn’t offer a driver alert monitor.
Both the G-Class and the Yukon XL have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems and rearview cameras.