I don't know how to explain this, but I'm really confused so I'll give it a try.

On 2nd gear when I push the pedal to WOT the car seems to up shift and downshift in a horrible way, it keeps upshifting and downshifting until I take my foot off the pedal! I'm not sure if this happens only on 2nd gear because I didn't try it on other gears, I don't want to damage anything!

And I don't know if this is related but I can't switch the AH off or even select the competitive driving mode, I can only switch the TC off. I tried to turn the car off and started it again, still I'm unable to turn the AH off or select the Competitive driving mode! This is making me nervous.

Help Anyone, I'd really appreciate any replays, I'm hopeless.