Consumers increasingly use automaker vehicle apps but remain unsatisfied with the smartphone apps' performance, J.D. Power reported in a new study.

Vehicle brand apps increasingly impact drivers' experiences In fact, 38% of respondents indicated they use their vehicle's app at least half the time they drive, found J.D. Power’s benchmark study. Just 25% percent of users do not use their apps, down from 45% in 2020.

Though use is up, consumers reported that of the 32 brand apps tested, none left them completely satisfied, J.D. Power said.

Consumers ranked Tesla's app the highest. They ranked the Volvo app highest among combustion engine vehicles, reported Frank Hanley, J.D. Power's senior director of global automotive consulting.

Respondents said the apps lack desirable features, such as navigation assistance and remote controls. They also complained the apps run too slowly. Vehicle owners also say they want apps to implement status information, such as informing them if their windows are locked or doors left open.

Respondents cited a large increase in software issues in 2021 versus 2020. For instance, some apps told users the wrong information. And several vehicles could not connect with apps downloaded to Android phones.

J.D. Power also learned dealerships are an integral part of setting up apps for users. The study found drivers still have trouble navigating them on their own.