IS there a way to turn an '08's tpms off?? I tried to use the Z06-style rims and tires that I bought for my C5 but found out that the computer would not let the car go faster than 65 because it thought the car had 4 "flats". I know that I can buy another set of monitors and have them installed but I thought there must be someone who know how to or if the TPMS can be turned "off". If that don't work then I would have to decide whether I want the new monitors or sell the wheel/tire set.

thanks

 

There is NO WAY to turn off, disable, deactivate, incapacitate, invalidate, switch off, etc., etc., etc. the TPMS.

Well.....if you're gonna turn the car into a track only car, you can take out the RCDLR and BCM and that might do it.

Get sensors.

Bob

 

hi Bob, there was a guy on here last week saying his tuner turned the tpms off

 

Hmmmm.....was that forum member patton?

I exchanged some posts with him and he implied that something like that was forthcoming from some tuner he knew.

The TPMS CANNOT be tuned out with HPTuners, EFILive, LS2Edit, a Predator, or any other tuning software - they do not work on the BCM where I believe the computer code resides that controls the TPMS.

The Tech 2 can program stuff into the BCM. If you get a new BCM your VIN and all your RPO codes have to be programmed into it so that all the features of your particular options will work properly.

If it can be done then it's a REALLY big deal and whoever knows how to do it could make a ton of money modding BCM's.

Except.....you're messing with a federally mandated system. A shop that knows how to do it would run into all kind of liability problems unles they get you to sign all kinds of notarized legally binding forms that you'd never run your car on the street.

I don't believe anybody has done it. We've had some really heavy-duty code writers working on the Nav for almost 4 years now trying to do away with something as simple as the "I Agree" button, and they haven't been able to crack GM's proprietary code.

I think it would be a very daunting task to hack into the BCM and rewrite GM's proprietary code to do away with the TPMS/sensor inputs. If it was Phoenix I might believe it.

I'd like to see it, but I won't believe it until I do!!

Bob

 

Looks like new monitors.

 

i know it cant, but this guy says they did. i guess thats why he is having this problem
1FastC61
CF Senior Member





Member Since: Aug 2005 Traction Control/ active handling

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Yeah.....I've read those stupid interchanges a couple of jerks had in that thread.

They're talking about AH rather than the problems caused by the TPMS when there are no sensors.

You can tune out TM (Torque Management), but you cannot tune out TC or AH, and you don't need to, because you can turn TC and AH off any time you want (if you have sensors ).

Butt... you can't tune out AH or the TPMS functions with any tuning software.

Bob

 

There was a guy here a few months ago that posted pics of a 'canister' he made from 4" PVC that he put his four sensors in to fake out the fact that he had none in his wheels. You can search for it if you like.

My thoughts are the benefit of having sensors in the wheels is a good thing and I would recomend that you purchase a set for your other wheels. I want to know if I lam oosing presure at the track so I don't tear a fender off when the tire shreads or leaves the wheel in a turn.

My 2c

 

my understanding is you can trick the car into thinkin it has them with a presurized canister. if you have to have the sensors though just put them in the wheel IMO.

I am not quite sure why you would not want them. I kind of like seeing my tire pressure change as they come up to temp. although I don't like the error at 40psi when my tires are rated at 44psi.

 

Wanting to fool the TPMS can be justified by something as simple as wanting to run 18psi at the dragstrip.

 

actually anything under 24 rear and over 42 front

 

I was using an arbitrary number that someone is likely to try at the strip, but nonetheless, I wasnt aware of the exact threshold till now. Thanks.

 

If you put DR's on the rear that have no sensors, or you're going to run less than 24 psi, AND you still have sensors in the front tires, you're probably going to have problems with messages and alerts on the DIC and , perhaps, a limp mode power reduction under hard launches.

I think the best thing is to not have ANY sensors at all if you run DR's at low pressure or with no sensors.

If you have NO sensors at all in any of your 4 wheels/tires, you will have approximately one hour from every time you start the car before you will have any problems - that's one hour of steady engine running time without shutting off the ignition. There's no drag racing event where you're going to have to start up and keep the engine running for an hour before you launch.

Even if you're doing HPDE or road racing events you won't have a problem unless you're running a session longer than one hour.

If you leave your street wheels/tires/sensors on the front and switch to DR's on the rear with no sensors, you'll get messages and probably the limp mode very soon after you start up and begin driving.

So.....I believe that you won't have any problems at the drags if you get another set of front wheels/tires with no sensors, and you run your DR's with no sensors - i.e., you don't have any sensors at all. Your TPMS will "remember" the last known pressures sent by your sensors and all should be okay.

However......if you disconnect your battery, the TPMS will lose the last known pressures and display "xx psi" and you'll have limp mode problems.

At least I think that will work for ya - just don't disconnect the battery!

Bob

 

Why not move the sensor's from old set of wheels to new set of wheels?

not sure which ones GM uses but they aren't permanently attached

 

Some people have two set of wheels, its annoying to ahve to spend $200 on each additional set of wheels. I am not happy I have to do that to my wheels and buy the stupid tool, $400 for something I use a few times a year.

I dont buy into the federal mandated system thing like the other poster said. If people are so worried, they wouldn't sell parts that temper with the emission system at all.

 

I don't care whether you wear a helmet when riding your motorcycle, wear a seat belt while driving your car, take off your Cats when you mod your exhaust, or run with no sensors in your tires, speeding, DUI, stopping at stop signs, etc., etc., etc. (Well....I do care if you're driving around drunk or otherwise a hazard on the streets)

However, the government does. There are laws that require those things - some are local and some are federal. If you don't want to comply with them, I don't care - just don't crash into me.

Due to Explorers flipping over and killing people about 10 years ago, Congress got with the DOT and NHTSA and a Federal law was enacted. It requires tire sensors in all 4-wheeled vehicles less than 10,000 pounds starting in September 2007 with the introduction of the 2008 model year.

Whether you like it or not, you're dealing with a system that is required by the federal government. Part of the law required dashboard alerts that could not be disabled. Likewise, they don't want it to be easy to disable or defeat the system and required the vehicle manufacturers to build it so it couldn't be turned off.

Again, I don't care if you don't want to run sensors but, if you don't, you'll have to deal with problems such as DIC messages and issues with not being able to go into Comp mode or turning off AH completely.

To my knowledge there is no known way to disable the TPMS in our C6 Corvettes. If somebody comes up with a way they can market it for off-road use only, such as they do for Cat-less exhausts. If you put in race seats you can have a problem with the airbag light being illuminated all the time and the telescoping steering column being inop. There is a wire harness you can buy that will bypass some of the OE restraint system stuff to put out the light and allow you to adjust the steering column in and out, but it's sold with provisos that it's for use in race cars and they're not responsible for you bypassing any required/installed restraint system safety equipment such as the airbags.

So far no one has come up with any way to disable the TPMS so you won't have the Comp mode/AH issues with no sensors.

There is no way to disable the system.

No one knows how to turn off the TPMS in a C6.

There is no way to tune out the TPMS with a Tech 2 or any tuning software.

Someday somebody may come up with a way to defeat the problems you encounter when running with no sensors, but at this time I have not heard of anyway to do that.

So.....don't blame me for GM (and all other manufacturers) complying with the Federal law to build a TPMS into ALL cars or for the requirement to make it so it can't be disabled. I'm just telling you that no one has spent the time trying to rewrite RCDLR and BCM code to change how it works.

I'm gonna say it one more time - I don't care if you run sensors or not, but you've got a system that may give you some problems if you don't, and there is no way to disable it.

Let us know if you come up with a way to disable the TPMS.

Me....I've got 3 sets of wheels. I run sensors in all my street and track wheels/tires, and I got a tool to do the reset every time I swap wheels. If you want a tool I've got a great one for $185 shipped, and one of the forum vendors (Katech) has one for $140 plus shipping, so it's expensive but not as bad as you mentioned.

Bob

Was that too redundant?

 

Calm down, I wasn't questioning about the motive of the TPMS. I was simply disagreeing with what you said about why people are not touching the TPMS system. They are probably not doing it because it's either too expensive or too hard, it's not because of some federal law mandate. If that was the case, no vendors would make straight pipes. Emission laws are even tougher than the TPMS law, go read what the penalty is for removing cats. Heck, they don't even allow you to buy a used one or wrongfully dispose of one.

I personally don't care one way or another, but I certainly don't get worked up over it. I don't like the fact I have to buy the tools, but it is what it is.

 

BINGO!!!....That is EXACTLY the reason they are not doing it!!!!!!!!!

It is TOO EXPENSIVE and TOO HARD!!!!!! And the reason is because the government mandated that the vehicle manufacturers build it that way.

I've seen you ask in several threads about how to disable the TPMS, and I've mentioned numerous times that it cannot be done.

I'm going to PM you a link to a thread that was put up by a forum vendor that prepares race cars. About 5 months ago they posted a message in the Auto-x/RR section asking about interest in a way to tune out the TPMS. Very little interest was expressed in that thread, although perhaps they had a lot of PM's, emails, and calls.

I called them, and as I recall, they needed about 20 people to pony up about $2,000 each. They were going to hire a computer code writing expert to try to reverse engineer the code in the TPMS (which is comprised of the RCDLR, the BCM, the PCM, and several different links on the data busses that run throughout the car and connect various computers together). They figured that maybe within 4 to 6 months of work a computer expert might be able to rewrite the code to disable the TPMS.

AFAIK, they never got the project off the ground, but you can contact them and see if you can get in on it.

I don't think they will have any success. The C6 has been out for just about 4 years now. There is a huge long thread that has been going on for several years now about people trying to hack the Nav system to get rid of the "I Agree" button and to be able to make entries while moving. There have been some very, very knowledgeable computer whizzes that know a great deal about similar systems to ours on other vehicles and no one has been able to do anything with regard to hacking into the C6 system.

So......up until now it has been too expensive and too hard to come up with some way to disable the TPMS.

Bob

 

? I am not the original poster? I gave up on trying to bypass sensors a long time ago.....

 

Sorry - I was thinking of that TC/AH thread where people were bitchin' about not being able to go into Comp mode or turn off AH. I purposely stayed out of that thread, but all the problems those guys were having were because they refused to run sensors.

Bob