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About mopac

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  1. TJay74 - I have to disagree based on my playing around with these settings. Try it yourself on your 16 Sierra. Go into the infotainment system and set the auto fan speed to low. (I think the truck needs to be running to change this or at least with key in on position) Then remote start you vehicle and you should still have the fan going at the highest speed until you put the key into the ignition and turn it to on. At that point the fan will immediately slow down. The fan is on high under a remote start for my 18 Silverado no matter what I set the infotainment auto fan to. But once I put the key in and turn to on then the fan speed will vary depending on what I have the auto fan speed in the infotainment set at. Try it.
  2. I'm continuing to play with this. I think I'm understanding the auto fan setting LO-MED-HIGH in the infotainment settings. I think it might be better labeled SLOWER-NORMAL-FASTER. I think it works as a modifier for the fan speed the computer would otherwise select based on outside temp, inside temp, sun loading from the dash sensor etc. The MED or "NORMAL" setting is essentially just whatever the computer would choose for the fan speed. LO or "SLOWER" just tweaks down the speed the computer would otherwise have selected and HIGH or "FASTER" just tweaks up the speed the computer would have selected. I think it's meant to "dial in" your comfort relative to the "standard" person the computer is programmed for. I'm also now questioning whether the system might be slow to recognize a change in outside temperature from when the car was turned off. So if you turn it off at 5pm at the outside temperature is 60 and overnight a cold front moves in and when you go to start the vehicle and its 31 outside perhaps for a few minutes the computer still thinks it's 60? I'm also wondering if the fast fan speed when I started it a few days ago could have been user error in my canceling auto control accidentally. Selecting any of a number of HVAC buttons on the dash can have the effect of cancelling auto control. Perhaps I did that. This morning at least, it did seem to be working more along the lines of the Nissan.
  3. SK - Based on my playing around with the system, I think the fan blows full blast WHEN YOU REMOTE START no matter WHAT you have the Auto Fan Speed set at. The manual is as obtuse and unhelpful as one could possibly imagine on the Auto Fan Setting. On page 163 it says only this about the Auto Fan Speed: "This feature will set the auto fan speed. Select Low, Medium, or High." WTF is THAT supposed to mean? My system this morning with a huge variant in outside temp (31) to inside auto temp setting (72) did seem to vary the fan speed higher as the engine warmed up and then lower it as the inside temp was reached. The whole concept of "auto fan speed" seems a complete oxymoron to having a low, medium, high setting for said "auto fan speed." I wonder if anybody understands how exactly those 3 values impact how the auto fan speed works.
  4. Well, based on this and others suggestions I made sure my fan "auto" setting on the infotainment menu was "medium" and I bumped up the temp auto setting to 72. It was 31 outside this morning and I didn't use autostart so I could hear the fan from the moment the engine started up. This morning it seemed to work as I'd originally expected and as my Nissan does. This is the first day it's been below freezing. When I thought it aptly less than intelligently, blowing cold air on me at a pretty high speed when the engine wasn't near warm yet, I think the outside temps were in the 50s and I had the auto temp control set to either 68 or 70. Perhaps it needs a much larger gap in temperature to do well in regulating fan speed. So, at least this morning with the outside temperature at 31 (and the truck was sitting outside all night) and the dial set to 72 it performed intelligently enough for my comfort. Thanks guys.
  5. I'm going to have to dig through the owners manual again. (And yes, I read it cover to cover.) I don't remember any explanation on this auto fan setting. It's not intuitive as to why you're setting a fan speed relative to auto. Just doesn't immediately make sense.
  6. My 2010 Nissan Cube at HALF THE PRICE of this 2018 Silverado handles automatic temperature control like a genius. Virtually no fan at all when I start it up on a freezing day. But as the engine warms up the fan gradually blows harder and harder and you feel the cabin slowly warm up. As you're feeling it get warm you notice the fan is starting to ramp back down and the temperature of the air coming out of the vents is going down as well. It's really "smart" whatever the algorithm they've programmed to look at outside temperature, engine temperature and inside temperature and adjust the HVAC air temp and fan speed in response. The AC in the summer is similarly intelligent. In 8 years of driving this Nissan I've basically had the temperature set to 68 all year long and I never have to mess with it. Not so the Silverado, not so. Seems like such a simple thing really.
  7. How many are there? Are they someplace easy enough for me to reach and check or is this a warranty item?
  8. Aseibil - thanks for checking that. Mine was on Medium as well, so I'm not sure why yours seems to be working so much better than mine. I changed mine to low and I'll try that out and see how it does.
  9. I've noticed the remote start behavior relative to the fan as well. I've also experienced the fan speed reduction if I get a phone call. I appreciate that bit of "intelligence." I'm wondering if the setting on auto fan speed that m3n00b mentioned above is low for your truck. If yours is set to low than perhaps that's the remedy to my issue.
  10. I didn't realize that. But is that just set the fan to ALWAYS be that speed when the system in set to "AUTO"??? That seems crazy. What would be "auto" about that? Why not just leave the fan completely separate from the auto setting then? That's at least how the "fancy" automatic temperature control worked in my 1986 (I think I said 1984 about, but on second thought I think it was a 1986) Olds Toronado. You set the automatic temperature control and it adjusted it by vacuum control. But you still had separate control over the fan speed if I remember correctly. Nissan seems MUCH smarter here. The system recognizes the engine temperature isn't hot enough for heat when first started and it doesn't turn up the fan until it is actually warm enough. You can watch the number of bars increase on the fan display as the number of bars increase on the dash relative to the engine temp. And then the temperature of the air is eventually dialed back and the fan speed slowed back down after the cabin has gotten to the requested temp.
  11. My 2018 Silverado has auto temperature control. I've had it just a few months and this is the first time I'm getting into colder weather. With everything, including the fan, supposedly in auto mode per the infotainment display, I'm a little disappointed in it's "smarts." My little 4 cylinder 2010 Nissan was my first experience with automatic temperature control that was more advanced than the vacuum controlled slider in my 1984 Olds Toronado. And it seemed quite smart. When first starting the vehicle it has the fan on the very lowest setting even if I have the temp set to 72 and it's 25 outside. Otherwise it's just blowing cold air on me until the engine warms up. But that's exactly what the Silverado does. It starts blowing very hard (fan confirmed to be "auto") when I first get in - and it's just cold air. WTF?
  12. It's not VIN or vehicle specific. You just have to check on their site to make sure the adapter works for your vehicle. But it either does or it doesn't. There's just one. And it is supposed to monitor for signs from the computer that there has been a crash. And you can program it for who it contacts - since it links to your smart phone. My existing one makes a little beep when I start out if it's able to connect to my iPhone or a different signal if something with the connection went wrong. How well it works in the event of a crash is questionable - I've read people report airbags deploying and it didn't notice. But theoretically it's "On Star-lite" permanently for what On Star would charge for just a few months of their safety service. So although it does have the ability to read codes and clear them, it's meant to be more than just an OBD-II code reader. They are really shooting to be an "On Star-lite" type service - including for those makes/models for which On Star isn't even an option.
  13. I've had an Automatic plugged into the OBD-II port of my 2010 commuter sedan since buying it new. And it's been great for checking the occasional CEL code. I was able to immediately find out when the code thrown related to my catalytic converter, which on that car had a history of throwing metal into the engine since it was located so close to the block. So I was able to immediately get it over to the shop before it had a chance to torpedo my engine. Another code which comes up every few weeks during the spring and fall (when temps fluctuate wildly here) is a nuisance code that just needs to be cleared. And again Automatic and it's app have been great. I'm thinking of getting a new Automatic (https://automatic.com) for my 2018 Silverado LT with the 5.3L engine. Anybody have any experience with this combination or know of any problems?
  14. OK, I love my ICE truck as much as anybody, but a few points. I totally agree with your point about the "utopian" world of "social credit" systems and that it's not a positive direction. However, right now I think it's just as easy to disable a 5.3L Silverado "at the flick of a switch" as it is an all electric Bolt or the "hybrid" Volt. On Star can do that now, regardless of what propulsion system you have. There's a computer controlling them all. The limited range of electrics is currently a problem. But there a LOADS of people with their own electricity generation infrastructure (solar panels) on their homes. I don't know anybody with their own oil refinery in the backyard. So in terms of "controlling the masses" I would think it'd be easier to choke off the gas supply than get rid of all the solar panels. Finally, I think pure electrics are likely to be far more reliable than ICE given the huge reduction in the number of parts.
  15. Could one of you that has installed these post a picture of how much coverage they provide?

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