After recently stomping hard on the brakes on my 2008 G35xSport, my brake pedal no longer comes up far enough to touch two brake sensors resulting in engine management cutting power. Brake lights stay on even if I turn off the car and lock the doors. However if I push the pedal up, it goes away.

I've temporarily fixed the problem by taping thick piece of paper where pedal comes in contact with sensors. However, that doesn't solve the issue. I've called Infiniti for consultation and they suggested replacing the sensors, but it can't be it because sensors still work when the pedal is pushed up far enough. I've looked on ebay at used brake pedal assemblies, but I'm not sure if that's the problem.

Has anyone experience same issue? I wasn't able to find anything online regarding this issue for my car. Does any one have any ideas what could've broken and how to fix it?

Any help will be greatly appreciated.

 

Typical dealership response, every neighborhood has a reliable independent brake/alignment shop you need to find yours! Talk to friends, neighbors or the counter guy at the local auto parts store. Your problem isn't the sensor, there's a reason your pedal isn't working correctly and it probably has something to do with the master cylinder. Have you checked your brake fluid level, that's a place to start...Gary

 

When you called Infiniti did you speak to the service manager or just the person that answers the telephone?

With a 2008 I'm sure the experienced techs at the dealer have seen this issue before.

There are also many unqualified independent shops with poorly trained and poorly paid kids working there.

Agreed and the place to start is reading the FSM

http://www.nicoclub.com/FSM/G35/Sedan/2008/BR.pdf

I no longer trust any independent shop to work on my vehicle.
Your life may depend on those brakes and I'd rather spend a little more to have a trained Infiniti technician do the work rather than some young poorly trained kid.

Telcoman