That's strange, the E-pace doesn't have IEB (Intelligent emergency brake) it has AEB ( Autonomous Emergency Braking)
here's what the owner info has to say:
Make sure the windscreen is kept clean and the cameras line of sight is not obstructed by labels, stickers, etc. Failure to do so can cause incorrect AEB operation.
When a vehicle is parked outside, in full sunlight and in high ambient temperatures, the forward-facing camera may reach an internal temperature of 99°C. In this state, the instrument panel displays the warning message AEB not available. When the forward-facing camera cools to less than 88°C, normal operation is resumed, and the warning message extinguishes.
William.