If you can rev your car without it loading up on the brakes (up to ~3000rpm, but even higher on initial spikes), then LC is enabled. If the car loads up against the brakes, then LC has deactivated (shift back to D then S to reactivate in the quickest manner).
@Dyldo - that's probably help quite a bit for the 60' times. It'll allow a launch of 4750rpm, plus it gives approximately 33% faster shifts than factory.
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