TPMS Question.

[CUMan]

For most of the time I have owned the Genesis (since May, 2009), I kept the tire pressures around 30 lbs. The reason was to keep the ride as smooth as possible, given the stiff suspension and the Dunlop tires (225-55-17, in my case). During the warm months, the TPMS indicator never came on.

In October, my wife and I traveled up to the Smokey Mountains. On the first morning in the mountains, it was fairly cold (in the mid-30's, I would guess). As soon as I started the car, the TPMS indicator was on. I checked the tire pressures, and they showed about 28 lbs. on each tire. I had a battery operated compressor with me, and I raised the pressures to about 32 lbs. When I cranked the car, the TPMS indicator was still on; however, after driving a few miles, it went off. Since that time, I have closely checked the tire pressures and maintain them at 32 lbs. This has meant adding a bit of air as the temperatures have gotten cooler.

It appears to me that the indicators come on when the tire pressures fall to the area of 28-29 lbs. I don't really agree with the system being programmed to turn on the indicator at those pressures; however, that is apparently the way it it set up.

 

[taxicab]

As a follow up to CUMan and an apology to blasterguam, here is how my TPMS saga evolved. Up in the Smoky Mts like CUMan on his getaway, and yes it dropped into the 30's. TPMS warning on 3 tires upon start up. Drove a 20 mile stretch of windy mountain road, still all 3 tires warning. All the next day including driving to my office and back, still all 3 tires warning. 2 of them measured 31 on my gauge, 1 measured 29 in the cold of the morning before going anywhere (vs 33 in the manual). Finally today on the way to town, the indicator changed to only 2 tires flashing, and a later drive in the day showed no more warnings. So the TPMS does reset, but I find them very sensitive. I guess it will be a long winter of flashing warnings up here in the mountains.

 

[blasterguam]

As a follow up to CUMan and an apology to blasterguam, here is how my TPMS saga evolved. Up in the Smoky Mts like CUMan on his getaway, and yes it dropped into the 30's. TPMS warning on 3 tires upon start up. Drove a 20 mile stretch of windy mountain road, still all 3 tires warning. All the next day including driving to my office and back, still all 3 tires warning. 2 of them measured 31 on my gauge, 1 measured 29 in the cold of the morning before going anywhere (vs 33 in the manual). Finally today on the way to town, the indicator changed to only 2 tires flashing, and a later drive in the day showed no more warnings. So the TPMS does reset, but I find them very sensitive. I guess it will be a long winter of flashing warnings up here in the mountains.

Hang in there..the TPMS is a good thing

 

[ASHDUMP]

Hi everyone - I finally had my new tires and wheels put on for the winter months. I bought a new set of "take offs" from a dealer on ebay and Falken Eurowinter tires from www.discounttiredirect.com along with the TPMS for each.

I had my local auto body do the work because they are good and pay attention to detail. At the moment, the TPMS sensor is on. Not the one that tells you which tire is low, but the actual illuminated icon above the DIS. I have a 4.6 tech so how come its not telling me what tire is low?

Also, I have not checked the tire pressure but I have a feeling that might be the problem. The shop might have filled them up a little less for better traction.

Thanks,

 

[ASHDUMP]

OK. I did a quick check of tire pressure and they are actually filled like 45 PSI which seems high. I have to take some air out and hopefully it will take the illuminated TPMS light off.

Any thoughts?

 

[Mark_888]

ok. I did a quick check of tire pressure and they are actually filled like 45 psi which seems high. I have to take some air out and hopefully it will take the illuminated tpms light off.

Any thoughts?

33 psi.

 

[PLO5]

Question on replacing tires.. Does the TPMS have to be adjusted by the dealership when you replace tires that require a different psi.?

Ok. Called Hyundai Motors of America, they didn't know the answer, just said to call the dealership. So I called my local dealership and they stated that I would need to bring in the vehicle so they can adjust it to the new tire pressure. However, the sounded hesitant in their answer, but I'll have to go by what they said.

 

[missilemonger]

I just had four OEM chromed wheels put on my 2015 Genesis (got them from oemrims on ebay and the look great!) and had new TPSMs put on the new wheels because I put snow tires on my factory wheels. Got the TPMS from genuine_mobis_parts, also ebay. Genuine Hyundai TPMS in factory packaging for $33 each rather than $90 at the dealer (part#52933-3n100). You will also need valve stem caps (part#52934-a500). When I picked up my car the tire installer said they didn't have the correct tool to sync the TPMS and I would have to go the dealer; BUT the TPMS display on the dash was blank except for a message to drive a few miles. I did, and after less than ten miles the tire pressure for all four tires was displayed.

 

[bigpapainscotia]

I don't think that it matters when you rotate the tires . I sensor and computer will automatic pick up the location after you driving the car a few miles.

 

[savemoresaveoften]

Put on new snow tires and rim (with TPMS) on the G70 by tire shop. TPMS light looked fine but after about 2 weeks, get the dashboard message check TPMS system, and it wont show tire pressure on any of the wheels either (under system diagnostic, it wont show anything at all and ask to take car back to dealer to perform full system check). Tire Shop already rechecked and sensors are sending signals. Dont know if shop did a program and then relearn or just relearn on the new sensors. My question is would the TPMS function well for 2 weeks and then just go dark if they were not program properly to begin with ?? Since its aftermarket rims and sensors, not sure if dealer will even look at it. Any advice / suggestions appreciated.
I am trying to avoid to put original wheels back on to see if TPMS clears to isolate its not the car itself...

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[nandita agarwala]

OK guys. I've never had the TPMS light come on, but it is my understanding that when the pressure in a tire gets low, not only does the TPMS light come on, it also tells you which tire (corner of car) is the low tire. (I think this is correct, but not sure).

If this is true, what happens when you do a tire rotation. I.E. If a tire was on the left front, and is now rotated to the right rear (example), and that tire goes low, what does the dash light tell you? How does the TPMS know what corner the tire is on?

the sensors will reset the system automatically - no issues - just ensure you have the Schrader 433 hz sensors that also are standard on Kia Stinger. If your getting winter tires it works best to clone the new 'clonable'sensors eg Wurth so the car has no issues with identifying the sensors. It does not matter what tires carries what sensor - the system reads 4 sensors in 4 corners and if you rotate tires you again have 4 sensors in 4 tires

 

[Spanky61]

Unless you replace the TPMS Sensor with a new one. Then it needs to be register in the ECU. It's a small handheld unit used to identify the TPMS sensor and registration number. Then they add it to the ECU manually via the SAE unit.

Ditto as above.

If they are low it will tell you so and the screen will pop up. Keeping in mind in colder weather you can lose as much as 5 psi per week per tire. Doesn't matter which wheel on which hub, left or right forward or back it will read the sensors the same.

 

[g_58919]

Unless you replace the TPMS Sensor with a new one. Then it needs to be register in the ECU. It's a small handheld unit used to identify the TPMS sensor and registration number. Then they add it to the ECU manually via the SAE unit.

Ditto as above.

If they are low it will tell you so and the screen will pop up. Keeping in mind in colder weather you can lose as much as 5 psi per week per tire. Doesn't matter which wheel on which hub, left or right forward or back it will read the sensors the same.

So if I have 2sets of rims, does it mean only way for it to work is have it cloned exactly to the factory wheel sensor ID’s etc for TPMS not to throw malfunction code ?

 

[nandita agarwala]

Unless you replace the TPMS Sensor with a new one. Then it needs to be register in the ECU. It's a small handheld unit used to identify the TPMS sensor and registration number. Then they add it to the ECU manually via the SAE unit.

Ditto as above.

If they are low it will tell you so and the screen will pop up. Keeping in mind in colder weather you can lose as much as 5 psi per week per tire. Doesn't matter which wheel on which hub, left or right forward or back it will read the sensors the same.

You are 100% correct - just that some shops use a cloning tool to clone your existing sensor with the same number/s as on the original tires - now the system will read as the same sensor and NOT register a new sensor in ECU