Cruse control. problems...

[wiliam the first]

So my new/old 2015 Q50 Hybrid is great, lovin it, but it seems the cruse control does not want to play; I followed the manual on how to turn it on and set the required speed, lights up, does everything it suppose to do, but will not engage. Some guy on the Tube said, most of the time it’s down to adjustment its quite a common thing he says, and offers the solution with adjustment on the break peddle, says the switches should closed to engage, Umm my break peddle switches are closed, Umm on my car, so thats not the reason. Are there any other known reasons they do not want to play, if anyone knows of course.

[VStar650CL]

It might not be adjustment, it might be a bad switch. Most of them will flash the CC indicator or give you some sort of warning when there's a problem, and the ECM/VCM should both throw codes if there's a detectable issue. Generally the only thing which will cause no-engagement without any of that is the brake switch, because the systems mostly won't cross reference it with the brake lamp switch as a double-check. On Nissan products that's probably a good thing, because the brake lamp switches are notoriously unreliable. The switch with only 2 wires is your CC switch, the 4-wire switch is for the lamps. To check it, use a test lamp. The Green wire should be lit with the ignition, if it isn't then fuse #12 might be blown (but I kind of doubt that, there's a lot of other stuff on #12). The Beige wire should toggle hot/cold with the pedal, if not then the switch is shot.

[wiliam the first]

It might not be adjustment, it might be a bad switch. Most of them will flash the CC indicator or give you some sort of warning when there's a problem, and the ECM/VCM should both throw codes if there's a detectable issue. Generally the only thing which will cause no-engagement without any of that is the brake switch, because the systems mostly won't cross reference it with the brake lamp switch as a double-check. On Nissan products that's probably a good thing, because the brake lamp switches are notoriously unreliable. The switch with only 2 wires is your CC switch, the 4-wire switch is for the lamps. To check it, use a test lamp. The Green wire should be lit with the ignition, if it isn't then fuse #12 might be blown (but I kind of doubt that, there's a lot of other stuff on #12). The Beige wire should toggle hot/cold with the pedal, if not then the switch is shot.

Hi, I kind of follow you, makes sense. Its going into Infiniti service in 2 weeks, as its a new car, well for me anyway, full service, inc Spark plugs and good look around to make sure everything is doing what it should, Cruise control is on the list to be looked at and resolved along with timing belt inspection, new engine oil, gear box oil, check diff oils, and all new filters.

[VStar650CL]

Tell them you want a copy of the code sheet from the Consult3+. You're paying for diagnosis, so technically it's as much your property as theirs. If they don't resolve your issues, post the codes and I'll give you an opinion.

[wiliam the first]

Tell them you want a copy of the code sheet from the Consult3+. You're paying for diagnosis, so technically it's as much your property as theirs. If they don't resolve your issues, post the codes and I'll give you an opinion.

Thanks, yes knowing this lot here without asking for it, I would NOT be Surprised they would just keep it and I would be non the wiser, thanks....

Question, Connected to this cruse switch issue, the 3.5 Hybrid-S Q50 version, RPM question, what would be a comfortable RPM for the engine not to get too stressing, on a highway run 2000/3000RPM for example or ?

[VStar650CL]

Nissan doesn't do a lot of HEV's like Infiniti so my expertise is limited, but chances are the overall gearing on the Q50h won't be any different from the base Q50. They both use a 7-speed with a 0.776 top ratio, the big difference is the electric motor sandwiched between the engine and transmission with a pair of clutches instead of the normal torque converter. That means the HEV is essentially running in "lockup" whenever it's moving.

[wiliam the first]

Nissan doesn't do a lot of HEV's like Infiniti so my expertise is limited, but chances are the overall gearing on the Q50h won't be any different from the base Q50. They both use a 7-speed with a 0.776 top ratio, the big difference is the electric motor sandwiched between the engine and transmission with a pair of clutches instead of the normal torque converter. That means the HEV is essentially running in "lockup" whenever it's moving.

Yes, I think I get what your saying. For me where I think the Hybrid system wins over near every other model of Nissan, inc Infiniti except maybe the GTR Skyline, is the instant punch off the line specially having AWD. Even the twin turbo red sport 400 off the line can’t keep up, yes things begin to change after 30 or 50 MPH they can begin real the Hybrid version in, but its a little, small bit of Tesla action going on. But on an open road I have no interest in driving at 120 or 130MPH for 5 or 6 + miles. 70 to 90MPH on the open road is my average which seems to put the rev counter 2 to 3K ish which is not putting the car under any real level of stress, sometime the odd burst for about 5 or 10 seconds to the 120 to 130mph ish then back down to my average speed again. But so far from my limited experience of these Q50 365 BHP type models, I am very impressed with them, It’s a nice balance between umm a sports up market Sedan, and a higher quality ride. And the fun bit is, they are way, way faster than they appear to those who do not know these cars. That’s my take on it so far ....

[VStar650CL]

Stoplight to stoplight, there's no substitute for an electric motor. Anyone who's driven a 63kWH Leaf can tell you it will yank your head clean off your neck without ever screeching a tire. Well-constructed hybrid systems give you the best of both. Nissan has had a few clunkers like the HEV Rogue where the motor was too undersized to perform well, but on the whole the Infiniti systems seem pretty good. As a tech, my only knock on HEV's has always been the complexity. It's axiomatic that more stuff always means more stuff to go wrong. Get a good aftermarket warranty, because the stuff that does go wrong can be mighty expensive.

[wiliam the first]

Stoplight to stoplight, there's no substitute for an electric motor. Anyone who's driven a 63kWH Leaf can tell you it will yank your head clean off your neck without ever screeching a tire. Well-constructed hybrid systems give you the best of both. Nissan has had a few clunkers like the HEV Rogue where the motor was too undersized to perform well, but on the whole the Infiniti systems seem pretty good. As a tech, my only knock on HEV's has always been the complexity. It's axiomatic that more stuff always means more stuff to go wrong. Get a good aftermarket warranty, because the stuff that does go wrong can be mighty expensive.

Agreed; at the moment anayway, my one has done low milage 110500 klms umm about 68000 miles from new well maintained in near every respect. so I am hopping its good one and not a Dog, so far its playing very nice lol. except the cruse control bit. but yes they can be a nuke on the wallet. But as I say, no such thing as the perect car with no weak points. Mec, BMW, Audi can be just as nasty if the wrong bits break. When I was looking for a new/ used car, I went through near the whole spread sheet of options. round and round, even new cars with 50 miles can tun out the be a devil. I was going for the BMW 550D or the 335D but then found out, at around 100,000 to 150,000 miles, expect to pay a a complete engine rebuild due the timing chain wear, quite big money... thats normal for most of those BMW stright 6 engines. But you have low fuel costs, about the same performance as the Infiniti. But I don't have turbo's to go pop, instead a hybrid system. Many say the Q50 Hybrid they have/ had had done 150 to 200K miles in them, and have had no major issues just normal stuff we all have to pay for. My one will probably do about 6 to 7000 miles a year, most those miles will be on open roads and motorways, as said, I tend not whip my cars to death, so hopping its going to be a good one, service it about every 7k miles.. I should get about 5 or 6 + years before having to put good money out on it, If I even have it then. So I keep them fingers crossed. And of course the other factor is, this insane world is so screwed up, will there even be a world left then, that we recognise. MAD MAX

[wiliam the first]

Should I say this, after all this about the cruse cont, turns out I was the dumb a**, took it to the guarage , yes they said, we can see the problem, I said is it ? They said " YOU", WHAT, your pressing the wrong button they said.... Oppps. hahahha.