It's important to read the instructions. Loading audio narration... On Monday, police arrested a man who they said drove a Tesla Cybertruck into Grapevine Lake in North Texas. Per the Grapevine Police Department, the man said he was trying to test the Cybertruck's Wade Mode. The only problem? Wade Mode, according to the Cybertruck owner's manual, is designed for shallow creeks or rivers that have a maximum depth of 32 inches. Grapevine Lake, on the other hand, is 65 feet deep at points.