apart from radio channels and clock and some random lights with system low voltage codes
ls 460, is 250, 300 and 350 200t remove battery terminals without completing the remove procedure and navigation, radar cruise and afs gone you want it to run go to dealer or use techstream
lc and lexus later models remove battery terminal and sometimes the a/c servo motors go cucu you have to initialize them or they be blowing mixed or hot air or the foot side air might come through the defogger vents
hiace,camry and rav the latter drive by wire ones remove battery terminal and most of the times its stalling until it gains back with a/c and without a/c isv values,transmission shift points and fuel mixture settings had a tough time convincing the customer that nothing is wrong but you need to drive the car only and in the end had to drive the thing myself for around 2 hrs until it stopped stalling
most toyota and lexus clean the throttle body and the rpm can go up as much as 2.5k and gives bad jerks at shifts might even break weak mounts until relearns new values
most of nissan's and infiniti's clean throttle body or change the accelerator pedal or throttle body and the rpms get messed up use manual trick or use scanner to program the idle air volume
the nissans and infinitis specially those with the capsule type black keys they have a nasty habit of forgetting the key programs when removing the battery terminals
some american cars go into immobilizer lock down mode when removed battery
some german cars not shifting above 1st gear after removing the battery terminal
the range rover terminal removal had ended up in complete no shift with funny slipping noise which was sorted by removing a fuse and fixing it back
i usually check if they have a procedure then do that its better and for other cars that i don't have access to oem tools i put a keep alive 9 v battery connected to the cigarette lighter place and then work my way around it its way better than discovering that the shit has hit the fan and you wasting time to clean that up...
above all data has been collected by personal experience