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-   -   Cruise control annoyance (https://www.myg37.com/forums/general-tech-questions/291323-cruise-control-annoyance.html)

Spgoode 01-10-2019 07:14 PM

Cruise control annoyance
 
I have a 2011 S sedan with an auto. For an example, I am on the highway cruising at 60 with cruise engaged. I enter a downhill part of the road and my car is coasting. When I reach the bottom my speed will drop to 57 or 58 before the throttle kicks in and raises the speed back to 60. My car does this all the time and it's so annoying that I don't use cc. Does anyone have any ideas what could be causing this?

dkmura 01-10-2019 07:35 PM

Get used to it- the CC is set to close any throttle opening on a downhill stretch to save fuel. Once it reaches the bottom of the hill, speed has to bleed off by 3-5% before the CC system kicks on the throttle again. It works consistently, and doesn't deviate much, so what's the problem?

slartibartfast 01-10-2019 08:08 PM

Nissan had "adaptive" cruise control a long time. It was the same with my '94 Sentra SE-R. It's supposed to be a tad more fuel efficient.

ILM-NC G37S 01-11-2019 08:40 AM

Every car I have ever owned had cruise control (even my '75 Olds Toronado) and they all had a small differential that was barely noticeable- especially in hilly conditions. Some CC systems are more responsive/smoother than others but this behavior is completely normal.

Spgoode 01-11-2019 09:06 AM

Thanks for all the responses. I've owned many cars and usually swap them out every couple years. My last car was a '04 G35 6MT sedan, I loved that car and kept it for 5 years. I never noticed the cc acting like it does in this car, very disappointing.

telcoman 01-11-2019 11:28 AM


Originally Posted by Spgoode (Post 4227442)
I have a 2011 S sedan with an auto. For an example, I am on the highway cruising at 60 with cruise engaged. I enter a downhill part of the road and my car is coasting. When I reach the bottom my speed will drop to 57 or 58 before the throttle kicks in and raises the speed back to 60. My car does this all the time and it's so annoying that I don't use cc. Does anyone have any ideas what could be causing this?

I never use cruise control as it takes 1-2 MPG off my long road trips

Telcoman

slartibartfast 01-11-2019 06:16 PM

It's better if you run in manual, then the trans won't downshift two gears at the hint of an rising slope.


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