how to fix the VDC off & Slip lights ?

 

Is your service engine soon light on as well? First and easiest thing to do is check your brake fluid level. If it's low it will trip the lights. If the SES light is on you need to pull the trouble code/s and go from there. The lights might also mean you have a camshaft position sensor that has failed or is starting to fail, especially if you're over 100K miles. Rev-up motors (05-07 coupes and 05-06 sedans with the 6MT) have 4 and the 5AT's of the same years will have 2. The sensors have been known to start to fail without tripping a SES light and if you have to purchase a new one/s ONLY buy OEM Nissan parts, the aftermarket in general are junk that won't play nice with your motor.