[5th Gen : 08+]: TPMS - True or B*** S***
Hi lscman
I think you mis-understand my comment. My negativity is based on the amount of time it takes for the vehicle to recognize that either the sensors are there or not.
If we ignore what happens when the winter rims are installed (let's assume you are correct and the van cannot handle having no sensors in winter) and look at just when I reinstall the factory wheels for summer, then I do believe that there is an issue when the van takes 1 week to "re-discover" that there are four fully functioning tpms sensors now attached to the car. The electronics in a vehicle should be able to report an issue in seconds / minutes, not days/weeks later .
Put simply, when will I know in summer that I have an issue with tire pressure - when the tire looses pressure or when days later ? I do not know the answer and that is why I'm negative about the system fitted to my GC.
I think you mis-understand my comment. My negativity is based on the amount of time it takes for the vehicle to recognize that either the sensors are there or not.
If we ignore what happens when the winter rims are installed (let's assume you are correct and the van cannot handle having no sensors in winter) and look at just when I reinstall the factory wheels for summer, then I do believe that there is an issue when the van takes 1 week to "re-discover" that there are four fully functioning tpms sensors now attached to the car. The electronics in a vehicle should be able to report an issue in seconds / minutes, not days/weeks later .
Put simply, when will I know in summer that I have an issue with tire pressure - when the tire looses pressure or when days later ? I do not know the answer and that is why I'm negative about the system fitted to my GC.
My low pressure alarm operates and resets in REAL TIME!!! When the air pressure falls an alarm comes in within seconds. It also resets within seconds after the tire pressure is returned to normal. The system works beautifully with the sensors installed. If you want YOUR system to operate properly (too), I suggest replacing the four sensors you removed. You are blaming Dodge for your problems? Try removing the airbag, O2 or EGR...then complain about an erroneous or intermittent idiot light (which is not designed to detect such an event). Trouble codes are for component troubles which don't include theft or willfull hardware removal.
OK, at this point you should know the TPMS system will only work properly if you install the system components you removed.
PS: Have you ever removed the hard drive from your laptop and wondered why it does not tell you something is abnormal?? Have you ever removed your door bell and wonder why it doesn't ring? There are connectors under your hood that you can disconnect that will light up your dash like a christmas tree. Yuo wanna talk about abnormal alarms and erroneous function when stuff is removed or disconnected?
Last edited by Lscman; Jan 22, 2014 at 09:05 AM.
OK, user Montreal300 has just solved the mystery about swapping used GC TPMS sensors because he actually did it!!!!!!!!! Here's the deal:
Used or new TPMS OE-style sensors can be installed on any 5th generation grand caravan and the vehicle will relearn and accept them. No need for coding or programming tools. There are two aftermarket OE-compatible sensors available by Schrader and Dorman for about $25 each. There's another thread on that.
The only problems you will run into swapping wheels each spring and fall (4 summer wheels & 4 winter wheels) involve defective TPMS sensors (broken or dead internal battery) or non-OE universal style sensors that were installed by a tire shop. Some independent and 3rd party tire shops prefer to use non-OE style universal sensors that must be mated to the car with a special coding tool. This strategy allows them to hold the customers hostage for future repairs and it allows them to stock fewer TPMS sensors with unique part#.
Used or new TPMS OE-style sensors can be installed on any 5th generation grand caravan and the vehicle will relearn and accept them. No need for coding or programming tools. There are two aftermarket OE-compatible sensors available by Schrader and Dorman for about $25 each. There's another thread on that.
The only problems you will run into swapping wheels each spring and fall (4 summer wheels & 4 winter wheels) involve defective TPMS sensors (broken or dead internal battery) or non-OE universal style sensors that were installed by a tire shop. Some independent and 3rd party tire shops prefer to use non-OE style universal sensors that must be mated to the car with a special coding tool. This strategy allows them to hold the customers hostage for future repairs and it allows them to stock fewer TPMS sensors with unique part#.



