One problem related to rear seat belt buckle has been reported for the 2004 Jaguar XJ8. The most recently reported issues are listed below.
: the contact stated the accelerator and brake pedals were too close together causing accidental and simultaneous depression of both pedals. The dealer was notified. Updated 10/17/2006 - the driver side seat belt buckle failed to engage. A new buckle was ordered. The consumer could not remove the lug nuts from the wheel.