With snow in the forecast for this weekend, I finally got around to putting on my second set of wheels with the winter tires last night. I read the manual but cannot find any mention of a "jack mode". On my old Audi allroad and Q7 with air suspensions, you could put the vehicle in jack mode, which would lock the suspension in place for jacking. I was very impressed with the amount of wheel travel on the LR3 but it is annoying when jacking. I tried the access level lock but it did not help. I was using a floor jack with a jack stand as backup and all went well. However, it must be some adventure changing a flat tire on the side of the road using the OE jack. Also, at the 7500 mile service, the dealer checked the brakes for wear and put on some lug nuts at about 50 foot/lbs and others at about 250 foot/lbs. Just a reminder why it is better to do the work on your car yourself.
Set the park brake and chock the wheel on both sides at the opposite end of the jacking point. The supplied scissors jack will work in an emergency, otherwise it's pretty cheap and could easily bend and fail if you don't line it precisely under the jacking "hole" or your car is not on a level surface. In understand a bottle jack is supplied in other countries. I wouldn't trust that scissors thingie much and would definitely invest in a high reach, 3-ton floor jack for the garage if you'll be lifting your car to change wheels on a regular basis (you can open the rear liftgate as additional precaution, so the car doesn't try to self level if something goes wrong with the jack and you happen to be under the car...)