Bought a low mileage 2019 Limited to replace a 2012 Limited. Wasn't real excited to discover that the old 2H/4A/4H/4L was switched to the drive mode but such is life. Immediately replaced the basically stock "street" tires with Falken Wild Peak AT3W. I generally run "Normal" (2H) drive mode but if there's snow on the road, I use the "Sand/Grass/Rut" mode which I think is basically the same as the old 4A mode and have had no issues at highway speed. No traction issues at all even with really bad conditions over the Eisenhower Tunnel approaches here in CO; and if the road is variably wet/snow packed, no issues leaving it in 2WD "Normal" mode. I put that down to the tires which I've run on the old and the new Expy for several years. Same good traction goes for fairly deep/loose sand in eastern CO when hunting - the same AWD setting worked great. Call me surprised but it seems to be as efficient as the old system although I will would prefer to be able to lock in 4WD. POint is, I don't htink you need to run in the 4A mode all the time (deer avoidance is an exception) IF you have decent tires, as in not the crappy stock LT street tires that come with the vehicle.
Only two other comments - I did see a drop in mpg when I switched to the Falkens of almost 2 mpg (-10%+ drop); I'll gladly give this up for the improved traction! The other thing I notice is that if I'm in the Sand/Grass/Rut mode (basically 4A), I can't get it out of that and back to "Normal" unless I switch it to "Eco" mode. Anyone else have this issue?
Only two other comments - I did see a drop in mpg when I switched to the Falkens of almost 2 mpg (-10%+ drop); I'll gladly give this up for the improved traction! The other thing I notice is that if I'm in the Sand/Grass/Rut mode (basically 4A), I can't get it out of that and back to "Normal" unless I switch it to "Eco" mode. Anyone else have this issue?