What does the lightning bolt light on a Jaguar XJ6 dash mean?

The lightning bolt symbol on the dashboard of a Jaguar XJ6 typically indicates a malfunction in the vehicle's electronic throttle control system. This warning light suggests that there may be an issue with the engine's performance or that it is operating in a reduced power mode. It is advisable to consult the owner's manual and have the vehicle diagnosed by a professional to address any potential problems.