If you call for an Uber, you shouldn’t be surprised when a yellow cab shows up — the ride-share app is apparently hoping to rely on them more to ease a reported shortage of drivers, much to the chagrin of some riders.

“Why would I want a f–king yellow cab?! If I want a yellow cab, I’d walk down to the street and hail one,” an irate Uber customer told The Post on Tuesday — after receiving an email a day earlier from the rideshare-app company reminding users that yellow cabbies may be picking them up.