Originally Posted By: Alex38
I agree, and am surprised that GM has had a system that is so much more sophisticated for a long time, and Toyota hasn't matched it.
I am surprised too that Toyota doesn't have something similar to the GM system.
I know on my 03 Buick that the OLM varies widely based on driving conditions (3,200mi all in town, 5,500 mix in town highway, and currently all highway at 8,500mi and hasn't gone off yet).
Frankly I'm surprised GM implemented such a (relatively) sophisticated and well designed system considering some of their other *gems* of engineering like the goofy way they wire up the DRLs through the BCM in some of their vehicles causing too high of a voltage (along with voltage spikes) that burn out the DRLs permaturely. At least that was an easy fix - cut the 2 input wires from the light switch to the BCM and cut the two output wires from the BCM to the DRLs/running lights and splice the wires together.