rvirg

I too am experiencing this flare (surge). I happens mostly when cold, and only going up a grade. I have brought this to the attention of the dealer twice before and the first time they could not duplicate it. The second time they did a software upgrade, but that did nothing...still the same intermittant problem. I have about 50k on the vehicle, and now made another dealer appt. for next week, and I will bring them the suggested fix that someone was so kind to post on this forum. Cross your fingers for me, and thanks to all for the information.