Let’s start with my car models and issues: I have Jaguar XK / XKR ( X150 ), my passenger seat will back will not sit up correctly. It appears to only travel about 1/3 of the driver, leaving the seat and passenger leaning back very far.
I loath having to go there and have not found any indy in my area that has the diagnostic tools.
Then is solution:
If you have a spare laptop, you can get set up yourself for as little as $50.
I have had my Mangoose SDD (Chinese clone of a Mongoose) for 5 or 6 years and have been able to do most things dealers do, including updating firmware in various modules.
As you can see from the attached screen shot the seat calibration routines are in one of the menus done through SDD.
If you have a few hours to spare you could start with this thread:
Cloned dealer scan tool – Jaguar Forums – Jaguar Enthusiasts Forum
There are quite a few suppliers and some people have had mixed success with them but I think I bought mine from here:
They also do a copy of the Mongoose Pro now as well:
V145 JLR Mangoose SDD Pro for Jaguar and Land Rover
As you can see from the above I mentioned, the cable should come with a copy of SDD (Jaguar supplied diagnostic software). You may or may not be able to read the CD the software comes on and it may or may not work fully! SDD V131 seems to be the sweet spot for functionality and least issues and there may be a link to a copy in that thread somewhere.
You can buy the cable plus a complete image of a virtual PC from a few suppliers which means you don’t have the hassle of installing the diagnostic software yourself. I have not had many problems myself but some people have wasted days trying to get theirs working (Here is: how to install JLR SDD V145 on XP WIN7). Once you have it working though it is an invaluable tool and will pay for itself over and over again.
If you use it to update firmware you must make sure you have a decent (at least) 25 amp power supply connected to the battery otherwise you run the risk of bricking modules.