Stucjk in 4WD Low

I would think so. I have, as several others have reported, had the worm gear get really gummy stalling the motor. Others have used a shot of WD40, I used 3in1 oil.

Lubricating the worm gear requires disassembly of the motor itself. To reassemble, you will have to mess with the business of getting the brushes back on the armature while ballancing the whole thing in a rather awkward position. Recommend lots of patience. But I and others have done it.

The problem has corrected itself. I spun the wheels on some ice and it disengaged. It made a grinding noise for a second and it has been fine since. Lucky me I guess. John