Audio problem: When Maddie is at her job and she says, "These people are the reason I'm losing my house!" pay attention. The word "house" doesn't quite match when the shot cuts from a wide shot to a medium shot.
Audio problem: At the end, when the dog jumps out of the car, Percy sees it and says, "Milo." The audio sync is off.
Answer: Uber has multiple rules regarding the cars drivers are allowed to use, and the van wouldn't meet most of them. Ex. It's not technically her car, so her name wouldn't likely be on the insurance policy, which is one of the requirements. It doesn't have a proper passenger seatbelt. The condition of the van itself doesn't seem to line up with what they want in terms of cosmetics and accessibility. Etc. You can't just drive any old car you want with Uber. If she tried to, she'd probably just immediately get reported by a rider, given the van's condition.
TedStixon