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Discussion Starter #1
2010 RTL with nav. 172.000 miles.
Yesterday was out doing errands and the TPMS light came on. At first I thought no big deal. It has come on before with one tire being low on air. So checked all the pressures and all 4 tires at 32psi. The weird part was the message was "TPMS System Error" which I don't remember ever seeing. The other weird thing is that the picture that shows a view of all 4 tires normally shows the pressure in each tire. Now it shows all 4 tires but there is no number next to each one. Just a blank line. So I unplugged the battery and waited a few minutes and plugged it back in. No change. Still got the system error and no pressures on the picture.

Now it was time to reset the radio. I typed the 4 digit code and hit 'enter;. The GPS booted up but the radio head unit is asking for the code. I cant get back to the screen that has the numbers to choose. Tried unplugging the battery again and the same thing.

AND the VSA button does nothing now. No light appears showing it is on or off.

Battery shows 12.6 volts after running and 12.4 in the morning when the engine is cold.

Worse case I can take it to the dealer but I would like to fix it myself. Any suggestions to try?

Rick
Murphy, NC
 

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Wish I had an idea for you, but this is a unique situation that I don't recall ever seeing mentioned here.

If you're a DIY kinda guy, do you have a copy of the Factory Service Manual?

Edit: I had to Google Murphy, NC. You are about as far west as you can go and still be in NC!
 

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Discussion Starter #3
Wish I had an idea for you, but this is a unique situation that I don't recall ever seeing mentioned here.

If you're a DIY kinda guy, do you have a copy of the Factory Service Manual?

Edit: I had to Google Murphy, NC. You are about as far west as you can go and still be in NC!
speedlever thanks for at least trying. No I don't have a service manual. Yeah we are 30 mins from TN and 30 mins from GA. Murphy is a small town but we have a Walmart and a casino!
 

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Discussion Starter #5
Few things

  • How old is your battery?
  • Is the car running when you do these tests or is it on the ACC2 mode?
smufguy the battery is about 4 years old. When engine is running it gets 14.6 volts. I have done all tests with both the ACC2 and engine running. No difference.
 

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Your original TPMS issue sounds like what my 06 RTS did when its sensors started to die out. Sensors have lifespan of roughly 8-10 years so yours are likley at the end of their life cycle particularly with the relatively high mileage on your vehicle.

When the TPMS system is showing low tire pressure (and probably when it is showing an error like on yours) the VSA system cannot be disabled. This is a common problem for those who air down their tires to travel on sand. For sand driving, the VSA fuse can be pulled to prevent the system from killing power due to wheel slip.

I have no idea what is going on with your head unit as it sounds like a navigation type unit and I have no experience with that. I don't think your head unit reboot issue is related to your initial problem. Your other issue sounds like bad TPMS sensor(s) to me. Most tire places should be able to connect to the TPMS sensors and check battery life / opperation.
 

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Discussion Starter #7
Your original TPMS issue sounds like what my 06 RTS did when its sensors started to die out. Sensors have lifespan of roughly 8-10 years so yours are likley at the end of their life cycle particularly with the relatively high mileage on your vehicle.

When the TPMS system is showing low tire pressure (and probably when it is showing an error like on yours) the VSA system cannot be disabled. This is a common problem for those who air down their tires to travel on sand. For sand driving, the VSA fuse can be pulled to prevent the system from killing power due to wheel slip.

I have no idea what is going on with your head unit as it sounds like a navigation type unit and I have no experience with that. I don't think your head unit reboot issue is related to your initial problem. Your other issue sounds like bad TPMS sensor(s) to me. Most tire places should be able to connect to the TPMS sensors and check battery life / opperation.
eurban that makes total sense about the TPMS and VSA being linked. It's just weird that all 4 would go out at the same time. I will find a local tire place. Thank you. Now on to the radio error...
 

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eurban that makes total sense about the TPMS and VSA being linked. It's just weird that all 4 would go out at the same time. I will find a local tire place. Thank you. Now on to the radio error...
Its not that all 4 went out. I believe is that all it takes is one to go out for you to get a TPMS system error. Once there is an error it may well be that the system won't / cannot display any of the tire pressures even though some of the sensors may still be working.\
Just FYI, it's only on the Nav Ridges where you can actually display the tire pressures. On the non Nav Ridges, all you see is a the truck graphic and the particular wheel that is low . . .no actual tire pressure.
 

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I would recommend getting your battery tested. Looks like your alternator is fine, so no worries there.
The one time I had the TPMS warning on is when my spare, that was brand new, was installed and the other 3 had around 50K+ miles on it and thus pretty worn out.

Unfortunately, as you may have known, the batteries on the tire pressure sensors cannot be replaced, they need to be fully changed out. You need not go with OEM as I have aftermarket sensors through Discount Tire Direct, and they are working perfectly fine; though the OEM and aftermarket are about the same price.
 

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Discussion Starter #10
I would recommend getting your battery tested. Looks like your alternator is fine, so no worries there.
The one time I had the TPMS warning on is when my spare, that was brand new, was installed and the other 3 had around 50K+ miles on it and thus pretty worn out.

Unfortunately, as you may have known, the batteries on the tire pressure sensors cannot be replaced, they need to be fully changed out. You need not go with OEM as I have aftermarket sensors through Discount Tire Direct, and they are working perfectly fine; though the OEM and aftermarket are about the same price.
Thank you. I am heading out today to try and find a tire place.
 

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Eurban was right. I finally found someone (besides Honda) that had a scanner. I live in a small town in the mountains of North Carolina so it took a while... plus I was not in a hurry. The front passenger tire sensor was dead. He ordered a OEM and installed it. Problem solved. System error gone and now it shows tire pressure on all 4 tires. He said he didn't have luck in the past with aftermarket sensors so he installed the Honda one. $100 for everything.
 
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