What assists the QX55 in maintaining traction on slippery roads?

The Intelligent All-Wheel Drive system is pivotal in aiding the QX55 to maintain traction on slippery roads. This system automatically distributes power between the front and rear wheels based on the driving conditions. By monitoring factors such as wheel slip and road surface conditions, the system can adjust power distribution to enhance grip and stability when needed. This feature is particularly beneficial in adverse weather conditions like rain or snow, where traction can be compromised.

In contrast, the other options either do not provide the same level of adaptive response to changing conditions or are not typically associated with enhanced traction capabilities in slippery environments. For instance, a standard front-wheel drive system is less effective in distributing power to the rear wheels when needed, and manual transmission systems do not inherently improve traction; they mainly focus on the driver's control of gear selection. Similarly, a rear-wheel drive system with limited slip may assist with traction but would not be as responsive to changes in slippery conditions as an intelligent all-wheel drive system, which actively manages power delivery based on real-time assessments.