Hello all,

New to this forum. I bought a titanium 13' G37x with low miles. Since i got it from the dealer a few months back, i've been noticing a slight humming vibration at 65-70 mph... not lower nor higher than that. Been checking around on my mitchell on-demand and saw something about bolts on the driveshaft that need to be tighten or fix... can'remember the buletin..but it seems to affect tbe 2011 models and lower.

Anybody have their Gs suffer from this humming vibration ?



Another question is about the firmware update on the transmission. I have seen that Infiniti did quite a few over the years.. is there a way to know if i have the most recent one ?

Many thanks

 

Here is the bulletin i found so far

PD11-001 ITB11-019 March 4, G37 AWD; VIBRATION AND / OR BOOMING NOISE AT HIGHWAY SPEED APPLIED VEHICLES: 2009 – 2011 G37 Sedan and Coupe (V36); AWD only APPLIED VINs and DATES: 2009 – 2010 G37 Sedan and Coupe; ALL 2011 G37 Sedan; Vehicles built before JN1CV6AR(*)BM 402938 and Oct 4, 2010 2011 G37 Sedan; Vehicles built before JN1DV6AR(*)BM 652280 and Oct 4, 2010 2011 G37 Sedan; Vehicles built before JN1CV6AR(*)BM 350939 and Oct 4, 2010 2011 G37 Sedan; Vehicles built before JN1DV6AR(*)BM 451028 and Oct 4, 2010 2011 G37 Coupe; Vehicles built before JN1CV6EL(*)BM 260030 and Oct 4, 2010 IF YOU CONFIRM: One or more of the following during highway speeds: • Vibration felt in the seat and / or floor • Inside rear view mirror vibrates, causing blurred reflection • Vibration heard from the rear parcel shelf • Booming noise heard NOTES: All incidents become more noticeable as vehicle speed increases. All incidents are more noticeable on smooth roads. ACTION: “Free up” the rebro joint in the rear propeller shaft.