Why is my 2019 BMW X5 remote start not working?

There are a variety of reasons the remote start on Your 2019 BMW X5 Might not function properly. One thing to check off the bat is going to be a weak or dying battery in Your key FOB. Another, is the actual battery in Your vehicle. If it's been very cold for a few days, You may find the battery is too low for it to carry out the remote start sequence. This may be accompanied by an error on the instrument cluster stating that remote control hasn't been detected. If You start manually, You'll typically see a message about excessive battery discharge, but be able to start remotely again after driving the X5 around a bit and letting the battery charge. Beyond that, Your BMW can "forget" the keys that are sync'd to it, as well as experience software glitches with the onboard vehicle computer, which will require You bringing it to the dealer to have them look it over.