This is both somewhat weird and interesting.
Per an updated Apple Pencil support document published last week, Apple has warned that the second-generation version of its Apple Pencil stylus on a compatible iPad Pro might interfere with signals from nearby key fobs, preventing users from opening their car door.
The problem appears to be restricted to the second-generation Apple Pencil when mounted on a third-generation iPad Pro.
Per the support document:
“If you’re charging your Apple Pencil (2nd generation) with your iPad Pro and your car’s keyless entry device (key fob) is nearby, signal interference might prevent you from unlocking your car with your key fob,” Apple notes.
Apple has suggested moving the iPad Pro away from the key fob or removing the Apple Pencil from the iPad to resolve the issue.
The Apple Pencil uses wireless charging standards, including Qi, which rely on electromagnetic fields to provide power to electronic devices. Depending on its configuration, an inductive technology can in some cases cause interference with low-power radio signals.
This issue may affect “smart keys,” which are designed as transponders, or passive remote systems, that allow users to unlock their car door simply by walking within range of onboard antennas. Due to their design as short-range radio solutions, generated signals from smart keys are more susceptible to electromagnetic interference.
Apple has noted that the signal interference will generally stop once the Apple Pencil is fully charged.
Stay tuned for additional details as they become available.
Via AppleInsider, Apple, and iGeneration