Most of the "electronic" issues in the LS can be traced to the CAN bus network - its level of sophistication, its susceptibility to RFI/EMI "noise" and the fact that Ford/Jaguar decided to use the spot welded unibody as a ground path back to the battery. Remember that the design of the LS dates back over 20 years now. The Gen II electronic parking brake control was one of the first on the market. "Bugs" that we see on a daily basis with our cars electronic systems have been addressed and for the most part engineered out of more modern and sophisticated vehicles.
As an aside, I personally think that running a heavy ground wire from the battery negative contact point in the trunk up to the engine block may help with potential multi-plane grounding issues in our LS. There is just way too much resistance through all the spot welds in the unibody, especially as the vehicle ages and micro point corrosion become apparent. It may have been quick, easy, cost less and overall expedient to do so when designing and building the car, but 11-18 years (and wet, salty winters) later after 50-200K miles, maybe not so much for the owners. I have relocated batteries in several vehicles over the years for different reasons and I have always had the best results when I run both cables to the relocated battery location. As always of course, YMMV.