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Cabin Overheat Protection almost stranded us

Discussion in 'Model X' started by teethdood, Jul 11, 2018.

  1. teethdood

    teethdood Member

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    We dined at a restaurant last night with 40 miles rated range left. The supercharger was 9 miles away from the restaurant. Outside air was 102F. After an hour and a half, we came out to find the car with 16 miles range left. We limped to the SC without AC; got there with 5 miles left. During the limp, I got a message saying Cabin Overheat Protection is now off due to low charge (at 15 miles range). I think the Cabin Overheat Protection was the culprit to the 24-mile range reduction.

    I'll have to remember to turn off the cabin overheat protection when running low on range going forward. I think Tesla should turn that off not at 15-mile range but at like 50-mile range, or even better, turn it off if the SC is X-miles away from the current location.
     
    • Informative x 2
    • Disagree x 1
  2. GlmnAlyAirCar

    GlmnAlyAirCar Member

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    It turns off at 20%, which is much higher than the 40 miles you quoted. There must have been some other reason for the loss of range.
     
    • Informative x 9
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  3. Peteybabes

    Peteybabes redneck drivin' a tesla...

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    also it sounds as though you were bitten by the range anxiety bug?

    i've driven for several miles at 0% a few times and my power has never been reduced until i was around 0-3% and A/C shuts off around 5% like you say, then power slowly starts backing off, even then i was able to maintain 55-60MPH to get me off the highway. then power and top speed got reduced to the point where i could only go maybe 40MPH but still made the charger! the longest i've driven at 0% is 8 miles...
     
    • Informative x 2
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  4. dhanson865

    dhanson865 Active Member

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    I live and work less than 15 miles from a supercharger and the trip from home to work or work to home is only 15 miles. No matter which of your suggested methods I wouldn't want overheat protection turned off if I had 50 miles range left.
     
    • Disagree x 1
  5. dlsspy

    dlsspy Member

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    I don't think it's helpful to think of range in terms of "miles" especially for making decisions like this. I do tend to find the estimated charge at destination to be useful (and conservative -- I typically beat it).

    I just finished a ~5500 mile road trip. At one point, I charged to ~95% and within a few minutes of driving, I was at 85%. I stayed around 85% for at least a half hour on the interstate. It was a hilly area. At one point, the nearest supercharger was a couple hours drive away from me. It estimated I'd get there at 2%. I got there at like, 4%. :)
     
  6. TexasEV

    TexasEV Well-Known Member

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    Just because you got lucky doesn’t mean you should recommend it. You’re more likely to get stranded at 0%.
     
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  7. travwill

    travwill Active Member

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    Try to find out the real cause as agree, cabin heat protection is disabled <20% battery left (say above your 40 miles). Had to be another reason... did you say leave climate on when exiting, a door open or something, etc. or something odd. Def check the app next time to see if something is going on.
     
    • Like x 1
  8. Peteybabes

    Peteybabes redneck drivin' a tesla...

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    i agree, and i never once recommended it did i?
     
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  9. X Fan

    X Fan Supporting Member

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    Haha, 0% several times; a brave man!
     
  10. Peteybabes

    Peteybabes redneck drivin' a tesla...

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    these damned 22" wheels :rolleyes:
     
    • Funny x 2
  11. P85_DA

    P85_DA Supporting Member

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    What’s with the troll titles ? Overheat protection won’t “strand” you ...it’s lack of understanding on how the car works that will put you in a bad situation ...
     
    • Like x 7
  12. hill

    hill Active Member

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    doesn't that 20% amount of mileage turn on battery pack size? we've noticed as much as 30 miles loss when there is an update in progress and even before it downloads. I wonder if the same protection works for that comma because we've had the mileage drop in that scenario just 50 miles .... that's pretty close to the 20% mark.
     
  13. Uncle Paul

    Uncle Paul Active Member

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    Had my X in Dog Mode last week on a road trip. At 20% I got a notice on my smart phone that the climate control was being discontinued.
    Worked great, and dog loves traveling in the deep back well of the X.

    Love the fact that I can leave the dog in the back when I am Supercharging and the interior will keep the pooch cool. Allows me go go out for a cup of coffee or bathroom break while the dog stays comfy and cool.

    G/F's i3 BMW shuts down while charging. Gotta take the dog with you :(
     
  14. TexasEV

    TexasEV Well-Known Member

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    You certainly did, when you ridiculed the OP for having “range anxiety” with a few miles left and bragging about how far you’ve traveled at 0%.
     
    • Like x 3
    • Disagree x 2
  15. tpham07

    tpham07 Active Member

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    cabin overheat protection does not turn on when the battery is below 20%. You can't even turn on your HVAC remotely when the battery is below 20%.
     
    • Helpful x 1
  16. invisik

    invisik Supporting Member

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    Minneapolis
    I turned it off right away. It should maybe use no more then X percent of available charge. It could also alert the phone app if it's not going to cool any more.....

    -m
     
  17. Icey

    Icey Member

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    Just be careful.

     
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  18. Mrcook4590

    Mrcook4590 Member

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    Virginia
    I don't know how well this video is made. The thermometers aren't even where the kids sit. They're in full sun while the seats aren't necessarily all of the way in the sun. Also, aren't some S's better equipped with air ventilation? I know our S needs a boost of fans in the back to circulate, so I am sure it is definitely hotter in the back, but I do not think this video accurately portrays the rear temperature in an S.
     
  19. Terthen

    Terthen Member

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    San Diego
    Happened to me as well when I was 20 miles from an SC on a hot day. It used up my battery until I had 30 miles left instead of 50 which i had calculated. Definitely had range anxiety and I did not anticipate that would happen, which is important because I only have a 60d. I have it turned off now.
     
  20. Cycle11111

    Cycle11111 Member

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    Jun 25, 2018
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    Location:
    Truckee
    I leave Cabin Overheat off as I live on CA and cabin temp is always going to 105F+. Clearly if you have dogs and/or children that maybe in the car I understand. However running to 0% is the best way to reduce battery capacity. See attached url on this.
    MaxRange Tesla Battery Survey
     

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