Tundra Tow/Haul Mode D, S4, S5
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- Опубликовано: 27 авг 2021
- A lot of debate about the proper way to Tow with your Tundra. Here I explain Tow/Haul mode and describe how it should be used with the transmission and when it is supposed to be used. I also review of appropriate use of Drive, S4, and S5 and discuss engine braking available in lwer gears beginning in S3.
Thanks for the video. Learned a lot that I wasnt aware of with my Tundra.
I am always learning new things about this truck myself, hope it was helpful.
Same
Just got my '21 TSS - and this was very helpful. Thanks for great tutorial...
Glad it helped
Thanks for the on hands video. I'm new to Toyota Tundra 2021 so i get my education from RUclips. Very good video and I subscribed
Thank you! This is what I was looking for. Simple explanation
Appreciate it, trying to focus on presenting the type of info that I like to know.
I agree with you on everything. I've got a 2020 trd pro and I had a tranny cooler added to mine because of temps. Between the cooler and manually shifting the truck to 4th the temps stay in a very safe place. 4th gear I believe is 1 to 1 direct which is why it tows great in that gear. By keeping it in say 4th gear it allows the torque convertor to stay locked which decreases temps big time. If you move it to 5th it does the same thing and keeps the tranny from hunting for gears which keeps those temps down.
The reason it has 6th is so when you're towing you can leave it in 6th and as soon as you hit a hill you can bump It into 5th and then 4th. When you clear the hill bump it back to 6th and it's just like having it in drive. The reason is if you're in drive and then move it to to manual mode it automatically goes to 4th gear which may be too low moving down the highway which will Rev the engine too high. When I tow I automatically put it in 6th to start and manually control it from there.
Man, that is a great explanation of S6. Hadn't really thought about S6 that way. This is the type of info I love to gain. Makes perfect sense to me.
@@kedrevs4037 These trucks are amazing. When I bought mine I wanted something that would last a lot of miles. Out of all the trucks Tundra was the only one that would fit the bill. Of course any truck can go a lot of miles if you pump enough money into it but I wanted one with the reliability to do it on the cheap. It's a great truck.
@@jamesvaldez4093 Toyota Says it doesn't need a cooler but I added one also and so far when not towing my pan temps have never gone over 200 degrees even in 95 degree weather. BTW I have 2020 Tundra TRD PRO also in MGM
@@dalephillips8250 It's great insurance and I plan on keeping my trucks so it's a good investment.
@@jamesvaldez4093 Same here sir.
Excellent period of instruction!
Thank you. Appreciate the feedback.
Thank you, great explanation. I subscribed.
Thank you, it helps a lot.
@@kedrevs4037 👍
Very helpful leanings!
Thanks for watching
I got a 2012 Tundra & I never could get an answer on the "S" modes. I was told by the dealer that if you get a squat on your rear end whil towing/hauling then use the tow/haul mode. Thanks for the tips, Drive safe. 🤠🤠
Saying the "dealer" doesn't mean anything. LOL
Great video. Have a 2021 Limited Crewmax. This really makes the S mode make sense. I do tow 6,000 lb. travel trailer. What weight distribution hitch would you recommend?
I actually have 3 separate WDH systems. Two are Fastway E2s, one is a Curt. I have both a trunnion and round bar system in the Fastway, I have WDH only in the Curt. The two brands are so similar, their parts are actually interchangeable.
It is very important is to get one with Sway Control or to get added Sway Control with the WDH hitch. I find for a load your size (and mine), GVWR 600lbs, the Round bar was (2 points ) vs the trunnion (4point) Fastway E2 to be very efficient. The key is to make sure you have adequate pressure restored to the front end when you set it up. Fastway has a great video on how to do this.
That was informative and simple Tku
glad it helped
Great video!
thank you, appreciate it
Looks like a Lance 2375 yes? I've got the same trailer towing with a 2016 Tundra. Tows nice. To make a comment on S6. If you stay in "S" mode, you would use S5 and S6 based upon terrain. Better than jumping back and forth between D and S. Better control while towing. That's what I do. Thx!
It is indeed a 2375. Appreciate the explanation for S6.
Toyota recommends tow haul mode and locked in s4 when towing a significant amount of weight to maintain the engines torque curve and engine braking. I pull my rv all the time on the interstate cruise set at 70 running 3k rpms has zero issues cruises right along.
Per the owner's manual for 2018, Toyota definitely recommends being in D with Tow Haul mode.
@@kedrevs4037 2019 owners manual, p187 under "trailer towing tips"...."to maintain engine braking efficiency and charging system performance when using engine braking, do not use the transmission in D. Transmission shift range position must be in 4 in the S mode."
P.199 under "Tow/Haul switch"....."Use TOW/HAUL mode when pulling a trailer or hauling a heavy load."
Thanks for the video 💯
Can you share the link for you screen looks nice
Alpine halo9 ilx f309
Good info
I have a 17 Tundra and a 2020 Escape 19 at 3500lbs. (Fibreglass like Casita) I get 12mpg towing at 800’ elevation around the Great Lakes. I use Tow Haul and generally tow in S5, up or down depending on terrain. In S5, the transmission rarely downshifts doing 65mph. I have the TRD exhaust and it purrs. I love this truck. Bad gas mileage is cheaper than some of the repairs my friends talk about. The only other truck I would consider is a Cummins Longhorn.
I have been very tempted by a Cummins Limited near me. If it wasn't white....
I'm curious about the TRD exhaust. I have read that one gets droning noise when under load, say going up a steep grade. And also the engine makes less torque at lower RPM, meaning the torques curve is moved to higher RPM's. Did you tow the same trailer before and after the TRD exhaust and if so share the difference? Comments about the droning and torque also appreciated. Thanks.
@@truthjustice3313 I bought the exhaust when I bought the truck. If the truck makes less torque at lower RPM, it would be negligible. The exhaust doesn’t drone at all, it is wife approved. Would I buy this exhaust again? It only has a 3 year warranty, the Borla is similar and comes with a lifetime warranty. The truck barely works pulling my trailer, an Escape 19, round like an Airstream.
@@truthjustice3313 I'll second the answer as I have 2020 TRD PRo and there is no droning. I love the exhaust note of this truck but when you are driving down the road you hardly hear it unless you get on it for a while and then its like music to my ears.
Thank you
I was told not to use cruise control while towing and in tow haul mode. Thoughts?
Generally Tow Haul mode and "D" are good. Cruise is fine. S4 for a lot of hills. But i got you covered here.ruclips.net/video/7k4JNi_HzMw/видео.html
@@kedrevs4037 Thank you buddy 👍
Great data I have been looking for this info I have a 2014 4.6 Tundra and it did not come with tow haul mode so I have been using S mode shifting like a straight shift. Even the dealers have no knowledge of how to use this. More on this subject would be great for those of us that have trucks that don't come with two haul option but have s mode.
Just leave it on 4th gear and you’ll be fine.
I have a 2016 Tundra i was to add a gooseneck horse trailer that weighs 5500 dry, loaded it should weigh in a around 7000lbs. Is that too heavy for my Tundra?
i would get the pin weight of the trailer checked, then go from thee, but at that limit you will likely be right near or just over payload.
Where did you find the info on s3 engine braking?
It is in the owner's manual. It will tell you there is no Engine Braking available until you are down in S3.
Doesn't it grade brake when in tow/haul mode?
Actually the Tundra will only utilize engine braking in S3 or lower. There is no engine braking in “D” with Tow/Haul. There is also no braking in S4 or above.
@@kedrevs4037 oh figured it was like every other truck where it will downshift when in tow/haul to engine brake
Hello can you tell me what display you have in your pickup?
Alpine Halo9 Ilx F309
@@kedrevs4037 How are you displaying that OBD data? Is there an app or dongle you need to pair with it? Pretty sweet setup!
Link for display please
Respectfully I have to disagree with you and here’s why. I have a 2020 TRD Pro with a very loud OEM exhaust which reverberates off the trailer. I tow a 5,000lb trailer on the interstate several times a year. Usually it’s a 12-24 hour stint. Tow haul mode is wonderfully on the surface streets and around town as it really prioritizes gearing and throttle response. However on the highway it’s a hindrance as on the slightest incline or slightest bit of Hadwin it instantly downshifts to 3000-3500 RPMs it doesn’t upshift quickly enough even when leveling back off on flat ground. I turn off tow haul mode and it keeps the RPMs lower and the truck has no problem lugging up over an incline at 2500 RPMs as long as you stay out of the throttle and can tolerate a 5 mph speed loss. I also put it in S5. Not only does it obviously limited from going into 6th but it absolutely prioritizes maintaining 5th gear over the standard shift algorithm. This all works really well on cruise control at 70 mph. If there’s any hill it will start surging between fourth and fifth trying to go back to 5th to maintain it. At that point I drive it manually turning cruise control off and can keep it in 5th gear up most hills doing 68 to 72. Now all that being said this is why I’m getting a Harrop supercharger as manually working the gas pedal for 12+ hours is very fatiguing as is listening to a tuned exhaust above 3000 RPMs. I want to maintain 2500 at 70 mph on cruise control no questions asked on most interstate inclines. I guess we shall see🤷🏻♂️
This is one of the many scenarios that I am thinking about. I’m not in a rush, but keep looking at options. Great info by the way, really appreciate it.
Per the owners manual (page #191 of mine) it states not to use cruise control when towing . On the Tundra forums most of the comments are also the Tundra seems to "hunt for gears more" when towing with CC on, I have experienced this when trying CC for a few min when towing. So when towing I never engage CC.....I own a 2020 CM Tundra and regularly tow a 7,000 lb TT.
would changing the gears make a difference in you’re opinion?
The manual specifically says use Tow/haul (over a certain weight) to avoid damaging the transmission. Not using it, is like lugging a manual transmission and it’s not good. Sometimes, mine refuses to up-shift and I need to put it in manual mode. I don’t mind…14 years and zero repairs on my 2008 Tundra. I tow much more than 5,000 pounds too. I’ve got a 9,000 camper that’s 33 feet long and I can hardly tell it’s back there. A camper is much different than a regular trailer, because of the wind it catches.
@@ellieandadambullion7708agreed, more load on the torque converter running in an overdrive gear
Tow haul does aide in braking, engine braking.
Not until you get to S3, it doesn’t .
@@kedrevs4037 So now you want to talk about specific gears, that's real smart. What ever works you pal.
S6 let's me cruise in 6th gear more often giving me better highway mileage even when towing 3000-6000 lbs on flat interstate at 55-75 mph
Yes, some others have suggested s6 is for not going back and 4th from D to S-mode
I'm mostly interstate so S3 would be way too low downhill I think.
Oof. There is no “AI” in this transmission control module. It is all deterministic.
“S” stands for sequential, not “shift.” The transmission is a direct shift transmission meaning it can skip gears to get to the right gear. Moving it into sequential, when you’re towing, will ensure the transmission does not skip gears. This is why “S6” exists.
The reason the transmission moves into “S4” when you switch it to sequential shift is because 4 is the direct, 1:1 gear ratio, and the gear you should always be towing in. If you want to heat up your transmission, tow in S5 or S6.
yes "sequential " is correct, having vehicles where the "S" stood for sport or or shift gets me to say the wrong word sometimes.
The Owners's manual disagrees with you on mode selection for towing and clearly recommends towing in D unless you are frequently climbig and descending hills. Additionally I can personally verify that towing in S4 will do little to nothing to change trans temps unless you are climbig and descending hills frequently.
Page 210, section 4-1 for my 2020 reads (just like my 2014 did):
“To maintain engine braking efficiency and charging system perfor-
mance when using engine braking, do not use the transmission in D.
Transmission shift range position must be in 4 in the S mode.”
As for heat, at constant load, a higher gear will increase transmission temps and (potentially) reduce engine temps. In the system, a transmission is a torque multiplier for the wheels. I haven’t found a way to change the laws of thermodynamics.
@@leje-zj4dr I have the same manual. Engine braking is not available above S3 because S4 and S5 don't cancel cruise control. S3 does.
The preferred method for long stretches of towing at constant speeds is the in D with Tow/Haul mode. The AI shift will still allow engine braking to occur on subtle declines, even in 4th or 5th gear without gear hunting and heating up the transmission.
@@kedrevs4037 yeah, that’s not in the owners manual, sorry.
Tundra is garbage get real truck
Thank you for adding that quality analysis.
Kenny Crawford......I bet your a Dodge fan aren't you? Tundra has been the best truck I've owned. I've had Chevy,Ford and Dodge and the Tundra is by far the better truck.
@@troyalanoutdoors907 I have owned 4 Chevys and 2 Fords. I rate them all as garbage. I have had 7 Toyotas and they have never had any problem. My son bought a Jeep and the frame is rotten. I asked the dealership about a recall, they laughed, I responded Toyota’s putting new frames under 12 year old Tacoma’s for free. I oil sprayed my Tacoma so my frame was mint. Most people who hate Toyota have never owned one. I have owned most brands and keep going back to Toyota. When my friends transmission went on his Ford for the second time he got angry and threatened to torch the car in the dealership parking lot.
I’m wondering what truck he’s considering as top notch ?!?!
I drive GM trucks at work, and have owned SO many Ford trucks through the years. My most reliable Ford was a one ton with the 7.3 Powerstroke. I put 300,000 miles on it, but not without some repairs. A few of my F150s needed engine rebuilds prior to 200,000 miles. Both my Dodge’s were junk, and one Nissan truck was as well. Every Toyota truck I’ve owned has been rock solid reliable. My current Toyota is fast approaching 300k and despite shopping new Tundras I won’t part ways with my “land crab”. I’ll keep it for muddy/rainy days or just avoiding piling extra miles on the new truck. Since I’m in my 50s now this next truck MIGHT be my last, so I’m definitely going to be picky about what I get !
I talked to 3 Silverado owners in the Fall of 2019 who had lifter failures. In the last couple months I have had friends who had issues with their F150, one had his spark plugs blow out on his 4.6L and one who had his plugs break off when he tried to change them, 5.4L. I don’t have any Dodge stories. My buddy who is a mechanic says the Ram is the what he would buy right now based on price and reliability.