In the era of in-vehicle information systems managing cognitive load becomes crucial for ensuring safe and efficient driving experiences. This study investigates the impact of information presentation and interaction methods on cognitive load in driving support systems. The research focuses on two primary functions: the manipulation of the air conditioning system and the configuration of the GPS navigation system. Through empirical evaluations and user feedback, the study compares traditional interfaces (buttons, rotary dials) with innovative interfaces (touchscreens, voice control) in terms of ease of use, setting time, divided attention time, and visual shifts. The findings reveal that for air conditioning system manipulation, traditional interfaces exhibit satisfactory usability and lower cognitive load, while for GPS configuration, innovative interfaces offer advantages in terms of user-friendliness and safety. The study emphasizes the need for effective cognitive load management strategies, including prioritizing information, ensuring simplicity and consistency, utilizing multimodal displays, monitoring driver state, and incorporating voice control. Despite the limitations of the small sample size, the results provide valuable insights for designing in-vehicle information systems that optimize usability and cognitive load under real-world conditions.