2008 versa hatchback with 6speed manual. Was coming home and it felt like the brakes were locking on and off plus tach was showing over reving by 1krpm and speed was showing 10mph sitting still lol. Got home, shut it off and noticed brake lights were staying on. While replacing the switch on the brake pedal, I noticed the little rubber grommet was missing. Replaced it as well and lights went out. Worked good the next day but then the Tach, Speedo, and now the Gas gauge keeping fluctuating. Most the time if I shut the car off and restart it, they reset back to normal but after awhile of driving, they mess up again. Its not always all of them at the same time either. Can be any combination of the 3. Any help would be greatly appreciated. Thanks.