TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker or making a Paypal contribution here: paypal.me/SupportTMC

Dangerous: Autopilot is nagging every 15 seconds. Why?

Discussion in 'Model X' started by Brandon332, Aug 25, 2016.

  1. Brandon332

    Brandon332 Member

    Joined:
    Apr 4, 2016
    Messages:
    166
    Location:
    Massachusetts
    Hi all,

    I love our X, but over the past several days something weird has been happening when in Autopilot. The "Hold steering wheel" alert is coming up exactly every 15 seconds without stop, regardless of any other factors. I use it on the way to work and home so it's the same route I've been using for months, clear skies, average speed, no obstructions to the camera, different lanes used etc, so it's nothing unusual external to the car. About 75% of the time it comes on every 15 seconds, the other 25% is normal.

    It's dangerous because I have to look down at the screen rather than on the road, I almost crashed once! So I put my hands on the wheel all the time, but you all know that we need to tug the wheel to silence the alert, so it still appears every 15 seconds. So I haven't been using autopilot anymore. Does anyone know why this happens and how to prevent it? Thanks so much! :)
     
    • Like x 1
  2. X Fan

    X Fan Member

    Joined:
    Sep 29, 2015
    Messages:
    488
    Location:
    Naples, FL & OIB, NC
    Used AP for almost 9K miles but haven’t seen that...it would be helpful to know your OS version and what type of road you are using it on.

    btw: have you rebooted the system with similar effect?
     
  3. BigMskiman

    BigMskiman Member

    Joined:
    Mar 14, 2016
    Messages:
    213
    Location:
    Pleasanton
    Not having that behavior on my X. It would distract me as well.
     
  4. RDoc

    RDoc S85D

    Joined:
    Aug 24, 2012
    Messages:
    1,569
    Location:
    Boston North Shore
    "Hold" means actually grip the wheel, not just put your hand on it. There's no need to tug at the wheel, just grip it comfortably and let the wheel's motion move your hand and arm. I grip the wheel at the bottom touching the bottom spoke and never get a nag.

    If you are doing that and still getting nags, talk to service.
     
    • Informative x 1
    • Like x 1
  5. kort677

    kort677 Active Member

    Joined:
    Sep 17, 2015
    Messages:
    1,858
    Location:
    florida.
    why do you need to look down? just keep a finger on the steering wheel, that said this is not normal and should get checked by a SvC
     
  6. cgiGuy

    cgiGuy Member

    Joined:
    Jul 9, 2013
    Messages:
    975
    Location:
    Sacramento, CA
    Wow. I'm somehow not surprised by how many people are crashing their cars on AP with statements like this.

    At least you weren't petting your dog and cleaning the interior of the car around a curve while on AP.
     
    • Funny x 3
  7. Brandon332

    Brandon332 Member

    Joined:
    Apr 4, 2016
    Messages:
    166
    Location:
    Massachusetts
    OS version 7.1, and the roads were main interstates. I've used the interstates every week since I got the car in July with no issues. I'll clarify, when I hold the wheel, 50% of he time the car doesn't recognize and it still gives the warning, 25% of the time it recognizes and lets me go for another 15 seconds, and 25% of the time I accidentally disengage autopilot. There's a very fine line between getting the car to notice you're holding it and disengaging it.
     
    • Informative x 1
  8. 30seconds

    30seconds Active Member

    Joined:
    Feb 28, 2013
    Messages:
    1,136
    Location:
    SF
    sounds like some sort of sensor issue
     
  9. davidc18

    davidc18 Member

    Joined:
    Apr 25, 2015
    Messages:
    806
    Location:
    So. FL
    There are no sensors in the wheel. It senses torque, not pressure. You have to apply slight torque to remove the nag.

    set up a service appt. that behavior is not normal.
     
  10. mkjayakumar

    mkjayakumar Active Member

    Joined:
    Aug 18, 2012
    Messages:
    1,725
    Location:
    Plano, TX
    You can hold the wheel as tightly as you want till your fingers turn blue. It will do nothing.

    You need to gently torque (turn) the wheel ever so slightly, just enough for the car to know you are alive and watching. If you turn too much AP will assume you want to take control and disable and give the control to you. It's easy, you will quickly learn how much to turn.
     
    • Funny x 2
  11. vandacca

    vandacca Active Member

    Joined:
    Oct 13, 2014
    Messages:
    1,947
    Location:
    Hamilton
    This is totally subjective, but it appears to me that AP will nag more when conditions are not ideal. I find that when I'm driving on a large, straight road with new asphalt and lines, I rarely get nagged. In a high-traffic area with faded lines, I appear to get nagged more often. Maybe your route is deemed not ideal?

    Note: this is not a scientific observation
     
  12. RDoc

    RDoc S85D

    Joined:
    Aug 24, 2012
    Messages:
    1,569
    Location:
    Boston North Shore
    Who said anything about sensors in the wheel?

    The torque the system senses from the inertia of your hand and arm plus the natural resistance of you arm to motion is more than enough to silence nags. There's no need to tug on the wheel.

    What won't work is lightly laying your hand on the wheel and letting it slip under your fingers. That will generate nags.
     
    • Helpful x 1
    • Informative x 1
  13. X Fan

    X Fan Member

    Joined:
    Sep 29, 2015
    Messages:
    488
    Location:
    Naples, FL & OIB, NC
    agreed....btw: OP, Q was which specific rev. level of 7.1? I have 2.32.100. In any event, SC call make sense.
     
  14. Blastphemy

    Blastphemy Member

    Joined:
    Jan 11, 2012
    Messages:
    557
    Location:
    Los Angeles, CA
    Same here.
     
  15. davidc18

    davidc18 Member

    Joined:
    Apr 25, 2015
    Messages:
    806
    Location:
    So. FL
    so we are saying the same thing differently
     
  16. systemcrashed

    systemcrashed Please Reboot

    Joined:
    Apr 7, 2016
    Messages:
    798
    Location:
    USA
    Give tech support a call and as them to push the last update to your car again. Good practice to reboot after firmware update. Check your windshield and make sure the glass is clean in front of the camera.
     
  17. Trnsl8r

    Trnsl8r Blue 85kwh since 12/8/12

    Joined:
    Aug 20, 2011
    Messages:
    1,674
    Location:
    San Jose, CA
    My car is too old for AP so I don't have the experience here, but wouldn't it make more sense to have a different function to let the car know you're awake than yanking the wheel? Could you have an alert show up on the screen or something that you have to tap to show the same?
     
  18. Pjjava34

    Pjjava34 Member

    Joined:
    Dec 10, 2015
    Messages:
    310
    Location:
    Georgia
    I've had the same observation.
     
  19. systemcrashed

    systemcrashed Please Reboot

    Joined:
    Apr 7, 2016
    Messages:
    798
    Location:
    USA
    Same here. Traffic volume change, and road conditions/contrast also triggers it for me.
     
  20. mkjayakumar

    mkjayakumar Active Member

    Joined:
    Aug 18, 2012
    Messages:
    1,725
    Location:
    Plano, TX
    #20 mkjayakumar, Aug 26, 2016
    Last edited: Aug 26, 2016
    True. I have had days when it will nag just once or twice in my 40 mile commute. Typically that would be when I am driving very early in the mornings or later at nights or weekends when there is less traffic, or on the other extreme when the traffic is just stop and go and crawling.

    It nags a bit more when there is dense traffic zipping at high speeds and folks are cutting you off in and out, traffic slowing abruptly. When the system is a bit more stressed.

    It all makes perfect sense.
     

Share This Page