Which type of maintenance can prevent brake system issues?

Regular brake fluid changes are critical for maintaining the brake system and can significantly prevent issues. Brake fluid is hygroscopic, meaning it can absorb moisture over time. When moisture enters the system, it can lead to reduced braking performance, corrosion of brake components, and even brake failure in extreme cases. By regularly changing the brake fluid, you ensure that the system remains free of contaminants, maintaining proper hydraulic function and overall braking performance. This proactive approach helps to extend the life of the brake components and enhances safety while driving.

The other options, while important for different aspects of vehicle maintenance, do not specifically address the brake system. Tire rotation contributes to even tire wear and can enhance handling but does not impact brake performance directly. Frequent vehicle washes help maintain the exterior and prevent rust but have no direct correlation to brake functionality. Likewise, spark plug replacements are crucial for engine performance rather than brake system integrity.