2005 lighst problem

hi,
can someone please help me with my 2005 quest problem? the lights,inside, the screen lights and headlights look like they shake and sometimes turn off and then when they come back after a couple of seconds the overdrive light is alaways on...I already changed he battery and it was ok for a few days and now it is coming up with the same problem. thank you in advance for your helo

Nissan Quest 99
Hi ,
I have a Nissan Quest 99 model.Whenever I first start on it press the gas pedal.I hear a grinding sound on one of the front wheels.It seems tha there is a lock on the break.Is this normal?
Thank you,