Kenkosto

08 G37S Coupe

So woke up, had a dead battery, was hoping that was the issue. Get a new one in and notice my brake lights aren't going off. From what I've gathered it seems like its a brake light switch that has probably gone bad. I also noticed that when I push the start button, it immediately turns on, as if the brake were pressed, would that still be an issue caused by a brake light switch or could it be something else? I also intend on replacing the part myself so am curious if there is any How-To's around.

Any insight is highly appreciated

Ken

slartibartfast

iTrader: (7)

You have it figured out. Check the DIY forum to see if someone has documented changing the switch.

Kenkosto

I didn’t see any there, but I’m going to upload what I’m seeing and have someone coming out to verify. I believe they’re both missing the rubber pieces?

To clarify I have what appears to be two switches after a fork from the pedal, one is the brake light switch and I’m unsure what the other is and curious if it also needs replacing?

slartibartfast

iTrader: (7)

The other switch is for the cruise control, I believe.

Kenkosto

Thats correct. So ironically enough the rubber piece that pushes the bottom of the brake light switch up was missing. Put a push clip in there after testing with a quarter and it fixed the issue.

ro0kie

Hi, apparently I’m having a similar issue and looks like I already fixed but just to be sure I’ve come here for advice.
what happen was I got my G37 6MT from my mechanic cuz I had a exhaust leak and it was triggering my o2 sensor and SES was coming on.
picked up the car took it for a test drive and no issues, all was fixed until, but later I went to grab a coffee and and noticed the 2 top led from the smaller circle in the tail lights were on, all the other off, coming home I felt the acceleration sluggish around 3k rpm, right after I got the Slip, VCD and ABS light on, so I got my scanner and got 1 fault at the abs, “stop light switch”
went to check it and everything seemed alright, just wiggle the wire and pressed a couple times the switch, erased the code, went for a short drive to test it, no more sluggishness and after locking the car all lights were off.
could it be just some kind of glitch or it’s a kinda of a warning that the switch is going bad??

thank you