Four levels of parking aids were tested using 32 participants in two age groups with equal numbers of men and women. Levels of parking aid were:​ no aid, ultrasonic rear park assist (URPA) with an auditory/visual distance to an object interface, a video view to the rear, and a combination of URPA with video view. Using a sport-utility vehicle, eighteen participants between 45 years and 55 years, and 14 participants 60 years and older performed five parking tasks:​ entering and exiting a parallel space, entering and exiting a perpendicular space, and backing to a trailer hitch. Participants reported higher scores of parking quality and judging distance to other objects with the video system than without. Objective measures including time to park, final position and angle in parking space showed differences based on parking aid system (URPA versus video). Age groups and replication number also showed differences. Total eye glance times to different areas of the vehicle showed differences based on parking aid system.