My car did not change gear from the parking position. on 2005 Jaguar S-Type

After refueling with regular gas my 05 Jaguar S-type with only 53K miles did not change gear from the Parking position despite the fact that the engine was running. I had to tow the car. What is the most likely problem?

Asked by for the 2005 Jaguar S-Type
1 answer
Should have put premium gas in it i guess... read on here somewhere that is what this vehicle has to have!....... Oh well, possible brake light switch or fuse problem that is not releasing the shifter interlock.