Have a diagnostic test ⦠Alright well yesterday i got in my truck to go down to the farm and when i cranked it it didnt want to turn over at first, so i tried it again and it struggled but started up, looked at my dash my tow/haul light was on so i clicked it off shut off my truck and it started just fine, no more tow/haul on. Pressing the switch a second time restores normal operation. decided to work a small knife edge into the sides of the button to work it free, after a bunch of attempts the button started to work like a button switch, seems from years of non use and sticky beverages the button was stuck down. Tow/Haul mode alters the shift schedule, not the actual gear ratios, but this makes it easier to get a kickdown (to a lower gear) and may hold you in a lower gear longer as you accelerate. Go from pulling a lowboy to towing a disabled truck with the touch of a button. As for the Tow/Haul/Performance Mode switch it can be either hardwired or via a serial message from the BCM. Itâs designed to make hauling a big cargo easier, but certain drivers get more comfortable with it than others. These are controlled by the BCM and I did want to retain that. And my cruise control light is now off when I click it. When tow haul mode was off I felt like the transmission was shifting way too often. I can jiggle the shifter and it goes off. Leave the Tow/Haul switch off all the time. Pulled this off jeep .com hope this helps. As for lighting, there are several methods to get hooked up, ranging from connecting at the front of the first trailer, to finding the wires at the back of the first trailer, to installing the bulbs with the pigtails in the lights of the first trailer (U-Haul has them). Is there a fuse to de-activate? In my F150 it seems to make a bigger difference. The âTOW/HAULâ light will illuminate in the instrument cluster to indicate that the switch has been activated. To use the Tow/Haul mode, use the selector button found at the end of the shift lever. U-Haulâs second type of trailer is the utility trailer, designed to haul bulkier landscaping items and building supplies. 5.3 V8. Vehicle: 2007 ford f250 super duty 5.4L tow; haul; flashing; light; 1 Answer. Your truck has the LM7 which engine comes with the 4L60E tranny which is a light ⦠If the light is on and it does not respond to pressing the button on the end of the shift stalk, then there is probably an issue with the switch. After a trailer almost came off my hitch due to an employee giving me an undersized tow ball,I would recommend not going to U-Haul for trailer rental either. Tow/haul Mode locks out the overdrive on the transmission so when you are pulling a load it does not do that "hunt" for gears thing that it will do when pulling a load under a load. Pressing the switch a second time restores the ⦠You will know if you have press the button and activated this mode correctly, as you will see a cluster of indicator lights labeled Tow/Haul illuminate on the instrument panel. Happens only when slowing down in tow/haul in 3rd - ⦠My advise to customers who have questions about the Tow/Haul mode switch or when to turn the overdrive switch on or off is to forget you have them, leave overdrive on all the time, donât get on the highway and forget to pop the overdrive switch on or you will lose as much a 4 or 5 miles per gallon. It DOES NOT lock out the 4th gear, or lock it in, meaning you can still get the "hunting for gears" while towing up hills, etc. 02-15-2016 #2. nannerhammock. I now have a 2015 F150 and did some towing today with and without the tow haul mode on. You could try disconnecting the switch and momentarily grounding the light blue wire, that should signal to Powertrain Control Module to the tow/haul off state. The TOW / HAUL mode inhibits fourth gear and allows upshifts to third gear during higher speed / lighter loads. I need to try and flash it back to stock to see if it gets rid of it, just thought I'd share in case anyone else is noticing this. Sometimes when I start up my 2007, when I put the transmission into drive, I notice the tow haul light on and the shifting is in tow mode. While many trucks have the ability to haul a trailer, some have a special tow/haul mode that helps you tow heavier ⦠I can press the button and it will go off. Whatever works for you is good. If the TOW/HAUL mode is desired, the switch must be pressed each time the engine is started. Answer: The switch and function are controlled by the body control module (BCM) Possible switch or bcm faulty. 2002 Suburban LT Autoride 4x4 5.3. There are like 4 small wires in the lever and one is probably not connected . If your concern is your transmission when you tow, turn off overdrive to stop the transmission from constantly hunting the higher gear. It still works, but the indicator doesn't light ⦠The tow/haul switch is part of the shift lever and is not replaceable without changing the shift lever. try removing the power wire off your battery then re-connecting it. Other times it doesn't come on. this should re-set your computer thus not showing you in tow haul mode untill you push it ⦠This page describes what was done to enable the Tow / Haul function on my 2001 Crew Cab. The tow/haul feature changes the shift patterns to make better use of engine torque while towing. tow/haul button Thanks for your reply's, tried to remove button from the top, wouldn't come out. Question = No tow/haul light on, the system does not activate when I push the button on the shifter. A multi-use towing and hauling machine, the TowHaul Gooseneck is the one piece of equipment that makes it all possible. The electrical connector is located inside the steering column covers. The light would come on and go off randomly (only when turning off/turning on truck, not change while driving). In ERS mode, gears 1 though 3 are underdrive gears, and ERS 4 is direct drive. Simply disconnecting the switch will not turn your tow/haul light off. Engine light starts blinking on my 2002 Silverado (5.3 l) when towing 4000 lb trailer in Tow Haul mode in 3rd gear. sounds like when you pushed the button it might of lost contact so you cant turn it off. The tow/haul mode only changes the shift points, to allow more bottom end when starting out, it allows the transmission to stay in the lower gear longer before it shifts to help get the load moving. This additional gear can improve vehicle performance and cooling capability when towing a trailer on certain grades. The third type of trailer offered by U-Haul is the companyâs car trailer. The donor vehicle in this case was a 2000 Blazer 4 door with the factory fog lights and Tow / Haul. I can't seem to find a common cause for it to come on, it is just random. Just remember if youâre going to be traveling over hills or any kind of steep or uneven terrain, tow/haul lets your transmission shift a little sooner and compensate for the extra weight, preventing wear and tear on your engine. I might be wrong, but I think the tow haul mode would disable overdrive which is probably why my gas mileage stunk. The tow/haul featuremay suddenly come on or if i try to activate it wont come on. When i shift from park to drive the tow haul light comes on sporadically. Another important factor is your truck's power. The Tow-Haul light flashing indicates something is going wrong, and it is going into the memory of the TCM (Transmission Control Module). Good Morning, My 2001 z71 Tahoe has 312,000 miles on her so I know things will arise that will need to be fixed. U-Haul rep and trailer nerd Sperry Hutchinson showed us exactly what can happen when a trailer is loaded incorrectly, and how to make sure your rig doesn't start the truffle shuffle next time you tow. I have a 01 sierra, could be a coincidence nut but since a heavy rail storm a few weeks ago my tow/haul mode goes on by it's self,(has never happened before) this ⦠0 votes . U-Haul will be able to advise you on the limits. My truck has the factory fog lights. Push the TOW / HAUL button next to the shifter for improved vehicle performance and fuel economy while minimizing engine noise during trailer towing or heavy-load hauling. Now my tow/haul light flashes on and off, but not really in a sequence, just whenever it feels like it (No fault codes). Re: tow haul light turns on but does not work Apr 05 2014, 1:32am I know with my 2008 if I turn on tow mode while on a hill I usually dont notice a change either. My 2001 Chevy 1500 Express Van. tow haul light flashing and transmission gauge is not working. The Performance Mode Option setting decides which it is. Chevy Express Van Tow / Haul Light. U-Haul trailers are pretty heavy, so unless you are hauling pretty light cargo, you won't be able to use a very big trailer. Replace swith lever? Use of ERS (or TOW/HAUL mode) also enables an additional underdrive gear which is not normally used during through-gear accelerations. Light off, back to normal. this is the glove box code list: In this list For awhile now my tow/haul button on the column shifter doesn't work and the truck goes into it on its own and I can't get it to come out, sometimes I can turn the truck off and restart it and it will not be in tow/haul mode but sometimes it stays in it. As the mode is expected, it became active when the light was on. Stay away from the large U-Haul on Route 1 North in Edison,NJ. 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