GMC's Yukon comes standard with rear-wheel drive, but all-wheel drive is available as an option on SLE and SLT models. All-wheel drive improves traction in slippery conditions and can help the Yukon tow heavier loads. Here's a closer look at how GMC's all-wheel drive system works.
All-wheel drive systems send power to all four of a vehicle's wheels. This helps improve traction, especially in slippery conditions like rain, snow or ice. All-wheel drive can also help a vehicle tow heavier loads without losing traction.
GMC's all-wheel drive system is designed to be transparent to the driver. That means it shouldn't require any input from the driver to engage or disengage the system. The system automatically sends power to the wheels that have traction, so the driver doesn't need to do anything except keep driving.
If one of the Yukon's wheels starts slipping, the all-wheel drive system will automatically send more power to that wheel to help regain traction. The same thing happens if two wheels start slipping - more power will be sent to those wheels until they regain traction.
The all-wheel drive system can also be manually disengaged by the driver if desired. This might be desirable if the road conditions are particularly dry and good traction is not an issue. Disengaging the all-wheel drive system can save fuel since it reduces mechanical drag on the engine caused by powering all four wheels.
Overall, GMC's all-wheel drive system is designed to provide improved traction and stability in challenging driving conditions without requiring any action from the driver other than keeping on driving!