2012 Tundra, Tow/Haul Mode, Cruise control

  1. Welcome to Toyota Tundra Forums : Tundra Solutions Forums – General discussion forum for Toyota Trucks

    Welcome to Toyota Tundra Forums : Tundra Solutions Forums - a website dedicated to all things Toyota Tundra.

    You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, Join Toyota Tundra Forums : Tundra Solutions Forums today!
     
Page 1 of 3 123 LastLast
Results 1 to 15 of 31
Like Tree3Likes

Thread: 2012 Tundra, Tow/Haul Mode, Cruise control

  1. #1
    Junior Member
    Join Date
    Oct 2007
    Location
    PALM DESERT
    Posts
    73
    Liked
    8 times
    Rep Power
    1301

    Default 2012 Tundra, Tow/Haul Mode, Cruise control

    I have noticed that while towing the cruise control will shut down while climbing on rolling hills. Few percent grades or so. And certainly will not activate while climbing a grade of say 5%+. I haven't tried with tow haul mode deactivated.

    Is this normal? As in a safety thing?

  2. Remove Advertisements
    Toyota Tundra Forum
    Advertisements
     

  3. #2
    Veteran Member StevJ's Avatar
    Join Date
    Feb 2007
    Location
    Poulsbo, Wa
    Age
    100
    Posts
    1,061
    Liked
    142 times
    Rep Power
    9464

    Default Re: 2012 Tundra, Tow/Haul Mode, Cruise control

    Shuts down? So the CRUISE light on the dash goes out? That's odd.

    Steve
    1. Common sense is a curse in disguise, because if you have it, you have to live with those who do not.
    2. Everything will work exactly as expected, unless your expectations are incorrect.
    3. When Noah sends his animals to go forth and multiply, a pair of snakes replies “We can't multiply, we're adders” — so Noah builds them a log table.

    ˇpןɹoʍ ǝɥʇ ɟo sɹǝpuoʍ ǝɥʇ ɟo ǝuo sı ǝpoɔıun ʞuıɥʇ ı

    Compassionate misanthropy: loving mankind selectively.


    DIY AIP BYPASS <--
    Block-Off Plate Drawings<--

  4. #3
    Junior Member
    Join Date
    Oct 2007
    Location
    PALM DESERT
    Posts
    73
    Liked
    8 times
    Rep Power
    1301
    Thread Starter

    Default Re: 2012 Tundra, Tow/Haul Mode, Cruise control

    The cruise control light stays on, but the cruise control deactivates. Its more like a gradual roll back.

  5. #4
    Veteran Member RRzxter's Avatar
    Join Date
    May 2011
    Location
    Buffalo, NY
    Posts
    787
    Liked
    118 times
    Rep Power
    5171

    Default Re: 2012 Tundra, Tow/Haul Mode, Cruise control

    I've done the opposite:
    Never used CC in tow/haul mode.
    I've used CC while driving through mountains and it doesn't kick off.
    It will downshift like crazy to maintain speed up/down the grade, but stays on.
    Going downhill, I actually had to turn it off and ride the brake.

  6. #5
    Junior Member
    Join Date
    Apr 2012
    Location
    Colo
    Posts
    120
    Liked
    8 times
    Rep Power
    87

    Default Re: 2012 Tundra, Tow/Haul Mode, Cruise control

    Most cruise controls will shut down if the speed drops by a certain amount, not sure what Toyota's setting is by my older Chevy PU this would happen to going up long grades when heavily loaded.

  7. #6
    Rookie
    Join Date
    Jun 2012
    Location
    Washington
    Posts
    4
    Liked
    0 times
    Rep Power
    0

    Default Re: 2012 Tundra, Tow/Haul Mode, Cruise control

    My 2012 tundra does the same thing. When towing my trailer up a big hill and it downshifts to 3rd gear the cruise is deactivated. Light stays on but cruise goes off.

  8. #7
    Junior Member
    Join Date
    Oct 2007
    Location
    PALM DESERT
    Posts
    73
    Liked
    8 times
    Rep Power
    1301
    Thread Starter

    Default Re: 2012 Tundra, Tow/Haul Mode, Cruise control

    @rockwarrior
    Have you spoken with anyone at Toyota about it? I am wondering if its an adjustable threshold.
    It really sucks because mine will shut down on as little as a 2-3% grade. I am pulling ~7000Klbs.

  9. #8
    Veteran Member RRzxter's Avatar
    Join Date
    May 2011
    Location
    Buffalo, NY
    Posts
    787
    Liked
    118 times
    Rep Power
    5171

    Default Re: 2012 Tundra, Tow/Haul Mode, Cruise control

    When you guys are saying that it deactivates, you're talking about while in tow/haul mode, correct?

  10. #9
    Rookie
    Join Date
    Jun 2012
    Location
    Washington
    Posts
    4
    Liked
    0 times
    Rep Power
    0

    Default Re: 2012 Tundra, Tow/Haul Mode, Cruise control

    I'm also towing around 7,000#. Like I said mine only does it when it has to kick all the way to 3rd gear. Downshifts to 4th and works fine. Yes I have Tow/Haul Mode on. I called 2 different dealers today just kind of asking around and one place said it was normal and the other dealer where I actually bought the truck called me back but I missed the call.

  11. #10
    Veteran Member RRzxter's Avatar
    Join Date
    May 2011
    Location
    Buffalo, NY
    Posts
    787
    Liked
    118 times
    Rep Power
    5171

    Default Re: 2012 Tundra, Tow/Haul Mode, Cruise control

    I just wanted to make sure I wasn't giving false info.
    Like I said, mine stayed on and was downshifting till it sounded like it was at redline (it wasn't, just sounded like it).
    I actually had to turn the CC off.
    But, I wasn't towing anything and wasn't in tow/haul mode.

  12. #11
    Junior Member
    Join Date
    Jun 2011
    Location
    Washington State
    Posts
    95
    Liked
    6 times
    Rep Power
    16

    Default Re: 2012 Tundra, Tow/Haul Mode, Cruise control

    Personally I do not like the idea of CC while towing. I want to feel my load so to speak...I adjust my speed according to my terrain--faster if going downhill, slower if going up. This helps MPG a little and makes it so my truck is not fighting to stay at a set speed. If someone is behind me or if I'm towing with other friends towing their rigs I adjust my driving a little but I still do not use CC.
    2011 Black Tundra Rock Warrior Crewmax 5.7//Dealer Installed Leather//Wheelskin wrapped stearing wheel//Toyota hard Tonnea//TRD Anti-sway bar//Firestone Air Bags//Weathertech floor liners//MPG button mod//Viper 5601 w/auto start//Pioneer Avic-z130BT//JL Audio HD 900/5//HAT Clarus fronts (bridged)//CoAx's in rear off deck//Alpine SWR-T12 with custom box/amp rack//OnFair Headrest DVD's//Front window tint

    2012 Evergreen Everlite 32RBK-DS Travel Trailer


  13. #12
    Junior Member 11Tundra's Avatar
    Join Date
    Jan 2012
    Location
    United States
    Posts
    446
    Liked
    109 times
    Rep Power
    2817

    Default Re: 2012 Tundra, Tow/Haul Mode, Cruise control

    If one watches the upper-dash INST MPG display, it's certainly obvious why it's better to not use cruise control when climbing or going into headwinds while towing. Under these conditions, the cruise control compensates immediately and radically, with no regard to load (or fuel consumption). Under normal, low-load conditions, the engine is capable of quickly dealing with speed changes, so this M.O. works great. Under heavy-load, towing conditions, however, the engine is not capable of responding quickly enough and the cruise control could care less. It forces the engine to try to regain speed immediately, at all costs--to include application of full throttle and radical downshifts by the transmission. Pretty much a lose-lose situation resulting in increased fuel consumption and increased wear & tear to the engine and transmission.

  14. #13
    Junior Member ct03911's Avatar
    Join Date
    Mar 2010
    Location
    CT
    Posts
    242
    Liked
    12 times
    Rep Power
    6

    Default Re: 2012 Tundra, Tow/Haul Mode, Cruise control

    I agree not using CC is the better way to run rolling hills. On the flat, sure, I've done that on a long haul.
    '11 Tundra Doublecab, 4x4, SR5, TRD, Tow, Moroso Air/Oil Separator, LineX bedliner, Venture clear bra
    Coated in P21S wax, the best there is....

    '12 ZO6

    '13 Harley Street Glide

    '11 24' Featherlite enclosed car hauler

  15. #14
    Rookie
    Join Date
    Jun 2012
    Location
    Washington
    Posts
    4
    Liked
    0 times
    Rep Power
    0

    Default Re: 2012 Tundra, Tow/Haul Mode, Cruise control

    Long story short is the cruise shouldn't kick off.

  16. #15
    Junior Member hnd2hnd's Avatar
    Join Date
    May 2012
    Location
    Texas
    Posts
    74
    Liked
    20 times
    Rep Power
    1632

    Default Re: 2012 Tundra, Tow/Haul Mode, Cruise control

    If you have it...have you tried using the manual shift down to third and see if you can engage cruise.. I haven't tried CC while towing yet.. I have a 2010 Crewmax 4x4 5.7L.

Page 1 of 3 123 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •