Quick-release checks before calling
Make sure the gear selector is fully in Park and rock it slightly while turning the key — that solves a stuck-key case roughly 40% of the time. Try the second key fob if you have one. If you have a non-functioning fob, the immobilizer may also be blocking release.
What a Master Automotive Locksmith does on-site
For a true mechanical jam, an Arlington mobile locksmith disassembles the steering column trim and frees the cylinder. For an electrical / BCM issue, the diagnosis runs through an Autel IM608 or AVDI to read the BCM and the gear-position sensor. Most Range Rover stuck-key calls clear in under 90 minutes in the customer driveway.
When the BCM has to come out
On 2014+ Range Rover Sport, the BCM occasionally fails outright and needs to be replaced and coded to the existing keys. That coding job runs roughly $300–$500 mobile and avoids the multi-day Land Rover dealership stay.