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T31 Cruise control issues
I would be interested to hear from T31 owners about any issues they may have with the cruise control. I call it a "Clayton's cruise control" ... the cruise control you have when you're not having a cruise control!
Notwithstanding the owner's manual's comment about not using it in hilly areas (we're flat country around here), I find the following problems with mine:
1/. I have to activate it at a speed about 5 to 6 km/h above the speed I want to cruise at.
2/. After activation, it slowly loses speed as stated in 1/. above, but then won't necessarily maintain that speed. The slightest rise (or dip) in road slope will result in speed deviations of up to 6 km/h.
3/. If I use the speed increase/decrease switch, nothing happens for about five seconds, then it gives a sudden surge (or slowdown) which cannot be limited to a minor speed change ... again, between 5 or 6 km/h change is the minimum that can be attained.
Trying to maintain 100 k/mh on our flat freeway is virtually impossible. I have owned cruise control cars before and none of them was like this. It is quite unsuitable for avoiding speeding infringements. Cruise control technology isn't exactly "rocket surgery" these days and I'm quite disappointed considering the price of the vehicle. I intend to report it when the 10,000 km service comes up in about 3 months but expect to get fobbed off.
If anyone else has any experience with this problem (and Nissan's responses) I would be interested to hear.
---
John ... 2008 Ti, CVT, Twilight, factory nudge, roof bars, canoe/kayak carrier, colour coded door protection mouldings, tow bar, K&N air filter, HID (4300K) headlights.
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13/Jun/2008, 5:04 pm
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Re: T31 Cruise control issues
I'm not sure exactly how the cruise control works as far as recognising current vehicle speed, but it sounds like there might be a speed sensor fault, or a bad connection somewhere.
My T30 cruise control is very precise, and immediately drops or increases 1.5kph using the respective steering-wheel buttons. It is abit laggy on hill-climbs, but like you mentioned, it is not intended for that type of terrain. On flat highways and slight hills (up or down), it will precisely maintain constant speed.
As you said, you've driven other vehicles with cruise control and haven't experienced the same issues. If I were you, I'd be taking it back to Nissan to look at it as a warranty issue. Not that I would expect it to be the cause, but did you do an ECU reset after installing the K&N filter? Don't let them try to convince you that it is the K&N filter's fault 
Last edited by basshead, 13/Jun/2008, 5:25 pm
--- Rich. X-013(c)
'04 S2 ST Auto. Nudge_roofracks_tow_tints_Lightforce_GME_BFG_TBS_home-made-bashplate_50mm-spacer-lift
Click here to see >300MB of photos and videos All For His Glory. |
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13/Jun/2008, 5:23 pm
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Re: T31 Cruise control issues
quote:
basshead wrote:
but did you do an ECU reset after installing the K&N filter? Don't let them try to convince you that it is the K&N filter's fault
What's this gotta do with the cruise control Rich? LOL
I suspect a faulty cruise control throttle sensor here John, so you better take it to the dealer to fault find.
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13/Jun/2008, 6:00 pm
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Re: T31 Cruise control issues
I used my cruise control on freeway the other day.
Worked perfectly, no problems like the ones your mentioning.
I would say you have a faulty one
--- Jason X805
Diamond White
2008 T31 X Trail
CVT, Nudgebar
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13/Jun/2008, 8:52 pm
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Re: T31 Cruise control issues
Thanks for the replies guys. I'll leave it until the 10,000 km service and report it to Nissan then. That should only be about 12 weeks away. I didn't do an ECU reset after fitting the K&N filter because several days went by while we worked out where the ECU fuse was located. John.
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John ... 2008 Ti, CVT, Twilight, factory nudge, roof bars, canoe/kayak carrier, colour coded door protection mouldings, tow bar, K&N air filter, HID (4300K) headlights.
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16/Jun/2008, 7:38 pm
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Re: T31 Cruise control issues
I've had no problems with mine.
In fact its one of the best cruise control's I have ever had on a car, precise, keeps speed up and down hills and works almost imediately.
You've definately got a bug in the sensor.
Or maybe not re-setting the ECU has something to do with it.
Tony
--- Tony X-891c
2008 T31 St
HERE is my X Trail
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16/Jun/2008, 8:04 pm
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Re: T31 Cruise control issues
I have noticed the same issue with my car as well. Every time I set it on cruise it drops the speed by approx 5-7 kph. However it does eventually climb back to set speed. So Im not sure if there really is a problem. But it is annoying when it drops the speed initially, when you set it.
Cheers
---
CHRIS
2008 - X TRAIL - ST ( FLINT )
"Here I am"
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17/Jun/2008, 1:13 pm
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Re: T31 Cruise control issues
The cruise in my T30 was slow to react, typically dropped around the same speed as being said here. But I never thought anything of it because it was my frist car with CC. Now I have the Triton I can look back and say the Exy was a bit slow. The Triton kicks in immediately.
As I see it, there may be one controlling factor that makes the difference. The X-Trail has fly by wire and the Triton doesn't. I think the wire system loses time in digital to analogue conversion or something along those lines. You can feel the accelerator pedal move in the X-Trail whereas in the Triton, once you let it go it comes up to rest position and stays there until you manually use it again.
But if it is a digital, then it is tuneable... Nissan would either be using third party CC manufacturers or in house systems. You would think they make it a bit more responsive.
I don't think there are any power/torque related issues that cause the difference.
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17/Jun/2008, 1:32 pm
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Re: T31 Cruise control issues
I have found (auto T-31) that if I try to make a jump change in speed using the control column stick, there is a long lag before a sudden sharp speed increase that is very hard to control. However, minor changes (1 kph) are immediate - but you are only aware of this using the GPS which clearly registers the small speed shift. The GPS also showed how constant the speed remained (flat road) - you can really fine tune it to an exact desired kph. So use the pedal to make a step speed change and then fine tune with the stick.
---
Phil (X-852)
T-31 ST
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18/Jun/2008, 11:20 pm
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