Sorry for the long post… I have a 2020 Expedition Black with the Stealth and Convenience packages. I live outside of Boston and also drive frequently North into the White Mountains (NH). I have the Drive Mode rotary switch. All page numbers refer to the 2020 Expedition Owner’s Manual. I understand the differences between 4A and 4H (4x4), in other words center transfer case verses center differential (may be able to lock). I have had other all-wheel drive cars (Audi) and 4x4 (Wrangler JK, JL has a center diff option now). Also have the Expedition FX4 take offs wheels/tires (275/55/20 Goodyear Wrangler Duratrac A/T) as I am sure the Hankook Dunapro HT would have been useless.
From my understanding I have the following controls to play with for driving in the snow/ice.
1) Drive modes (as listed on p268), note that on p205 it states the only way to get into 4H (I assume just locks the center diff) functionality is within Mud/Ruts and Sand Drive Modes. In addition, push buttons 2H, 4H, 2L switches next to Drive Mode Switch.
2) LSD locker eLSD (p212), locker switch next to Drive Mode rotary switch
3) Stability control (RSC on/off - long press) & Traction control (on/off - short press), switch is above NAV screen (p217), table of modes (p220).
Driving conditions…
1) Normal snow pack, road primarily clear
a. Drive mode - normal
b. 4A selected on push button switch
2) Normal snow pack, road snow/ice covered
a. Drive mode - Grass/Gravel/Snow (to get slippery tune), puts into 4A
3) Same as #2 but going up driveway (15-degree slope) (need to allow tires to spin)
a. Drive mode - Grass/Gravel/Snow
b. eLSD locker ON
c. Traction control OFF
Going up my drive while it is snow covered, I need to let the tires spin otherwise I get stuck half way up as power is cut. I have had to do this in both all-wheel drive and 4x4 vehicles I have owned
So, am I missing anything/setting that I should change?
From my understanding I have the following controls to play with for driving in the snow/ice.
1) Drive modes (as listed on p268), note that on p205 it states the only way to get into 4H (I assume just locks the center diff) functionality is within Mud/Ruts and Sand Drive Modes. In addition, push buttons 2H, 4H, 2L switches next to Drive Mode Switch.
2) LSD locker eLSD (p212), locker switch next to Drive Mode rotary switch
3) Stability control (RSC on/off - long press) & Traction control (on/off - short press), switch is above NAV screen (p217), table of modes (p220).
Driving conditions…
1) Normal snow pack, road primarily clear
a. Drive mode - normal
b. 4A selected on push button switch
2) Normal snow pack, road snow/ice covered
a. Drive mode - Grass/Gravel/Snow (to get slippery tune), puts into 4A
3) Same as #2 but going up driveway (15-degree slope) (need to allow tires to spin)
a. Drive mode - Grass/Gravel/Snow
b. eLSD locker ON
c. Traction control OFF
Going up my drive while it is snow covered, I need to let the tires spin otherwise I get stuck half way up as power is cut. I have had to do this in both all-wheel drive and 4x4 vehicles I have owned
So, am I missing anything/setting that I should change?