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Hello, thanks for posting
It sounds like a couple of fuses may have blown to cause the throttle control system to go into limp mode, this can also be caused by the check engine light being on, the other lights, vsc,track, 4x4 will turn on automatically when the computer has detected and engine control malfunction. The first thing I would like to ask you to do is to open the fuse cover under the hood and have a look at the fuse marked ETCS, try a new fuse there and see if the throttle returns to normal, if it does but the engine light and others still remain on I would need to have the diagnostic codes from the computer, most autoparts stores like autozone can help you get the codes at no charge.
While under the hood, check some of the other fuses as well, let me know how this goes and please get the other codes for me if the warning lights remain on, thanks.