I have had several Nissan's and 1 other G35 so this is not right to me.

While on cruise control the speed varies by 5 or so MPH on hills.
Going downhill it coasts but does not accelerate until I am 5mph under the set speed going back up-hill

Same for going up hill-no acceleration until I get behind 5mph


Is it time to take it to the dealer?

 

beav626,

Do you have Intelligent Cruise Control or the Standard Cruise control? If you have the ICC, the speed will vary based on your distance from the car in front of you.

Regards,

 

Forgot to mention

No ICC

 

Our 08 G35X does the same thing!

 

To the OP, manual or auto? We have an 08 G35X auto and it's rock steady on the set speed unless I have ICC switched on. In which case it blissfully removes me from the whole brake, resume, coast, accel loop caused by idiots who can't maintain speed on a highway. The 5 spd auto will downshift/upshift as needed to maintain speed. If you've got a manual, is the RPM drifting outside the powerband in the gear you've chosen on steep hills?

Funny but I remember an effect like you describe in all Japanese cars from the 80's & 90's. They would always drift a few MPH above / below the set speed while domestic cars would lock onto a speed and stay within 1 MPH. I assumed it was a design choice in Japan since they pretty much all did it. But, I haven't encountered that in years.

 

we have the Auto w/out ICC and all my other Nissan's and Infiniti's have been rock steady on set speed

All my GM Trucks have done this speed varying so I expected with GM products but not with the Nissan's.

 

mine does the same thing +-5 miles depending on hills w,e.

 

has anyone spoke to the dealer regarding this?

 

I have to say I experience the same exact thing with my cruise control!

I just traded my '07 G35 Sport with ICC for an '08 G35 Journey without ICC. The '07 with ICC was rock solid on cruise control and never faltered uphill or downhill. My '08 without ICC struggles with consistency both uphill and downhill.

 

same here, had all nissans and acuras and toyotas, always rock solid, not this 08 g35S MT =(

 

Spoke to the dealer today and they said this is comon with the 07+ G's due to the dual throttle body.

There is no TSB yet but maybe in the future.


I think this is BS

 

Same here with my 08 automatic. Glad I am not the oly one. I had an 03 FX35 before and the cruise control was much more stable. Kind of dissapointing. I keep having people change lanes and pass me as I go down hill when the cruise control drops about 4 mph.

 

Same here. I have the standard cruise control and the car cant deal with hills. Most annoying!

 

ITB-07-28A

http://x.infinitihelp.com/forum/loca...d&pp=12&page=3

 

Mines an 08 and still exhibits the problem but I dont see a TSB about it for 08.