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RivNut

E-Z Pass problems

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I found out today, after the third try, that the 1991 - 1996 Buick Roadmasters and other Buicks that have a windshield that is covered with the special metal oxide coating cannot have E-Z Pass tags scanned through that windshield.  If you travel on toll roads often and have an E-Z Pass or other state issued passes, you might want to check out other ways of mounting your tag. You can find lists on the internet of other cars that have the same problem.  I only found out because my account with the state had me entering the turnpike at a point before the booth through which I actually entered.  That costs me a couple of extra bucks because they billed me based on my license plate rather than the Pass tag.

 

Ed

 

Here's a link that lists automobiles with windshields that won't allow E-Z Pass tags to be scanned.

https://ezpassmaineturnpike.com/EZPass/Page.do?id=extTags

Edited by RivNut (see edit history)
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Thanks for the information.  Did not know that  but it makes sense with the tinted and solar ray windshields.

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I remember when Kansas first started the K-Tags, they had front license plate frames with transponders built-in for cars with incompatible windshields.  Great for a state that doesn’t require front plates, huh?  lol

 

No idea if they still have anything like that today...

 

 

Edited by SpecialEducation (see edit history)

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1 hour ago, SpecialEducation said:

I remember when Kansas first started the K-Tags, they had front license plate frames with transponders built-in for cars with incompatible windshields.  Great for a state that doesn’t require front plates, huh?  lol

 

No idea if they still have anything like that today...

 

 

They do. One is on the way.  The representative waived the fees because of the situation.  Now I need to find a front license plate bracket. 🤔

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That's quite a windshield. With the placement of the defroster the driver can't see out on a humid day and the reader can't see in through the outside coating.

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I have found that if you hold the ezpass right against the windshield, they will scan.  Never had one not work driving the Roadmaster 

Edited by Y-JobFan (see edit history)

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21 hours ago, Y-JobFan said:

I have found that if you hold the ezpass right against the windshield, they will scan.  Never had one not work driving the Roadmaster 

What year?  

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As of yet, I haven't encountered a problem with my 2000 Eldorado.

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Roadmaster not the same windshield as my '95 Fleetwood Brougham??

 

EZ-PASS works on my '95 Fleetwood Brougham - likely the same as a Roadmaster,

also works in '02 Suburban and '06 Avalanche,

and in '00 Excursion

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Maybe there was some shield option available in the time frame?  

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More likely there's a difference in the tags themselves.  

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What is the purpose of the coating?  Part of the uv filtering?

 

I remember the "fluidic control sweep" of the defroster vent, side-to-side, rather than in a dedicated place as most other cars.

 

NTX5467

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In MD if the EZ Pass machine doesn’t detect the transponder then it automatically takes a scan of your rear license plate and matches up the account.

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On 9/8/2019 at 8:45 PM, RivNut said:

More likely there's a difference in the tags themselves.  

 

Despite Federal law that requires all toll road authorities to use a unified national standard by last year, there are a number of incompatible systems around the country. It is my understanding that the frequencies and RF protocols are pretty varied and it would not surprise me if some toll road tags would work and others not. As time passes, more and more toll road/bridge authorities will be migrating to systems that are nationally compatible. If/when that happens your local transponder will work on any toll road or bridge in the country. Don't hold your breath waiting for it to happen though.

 

37 minutes ago, Crazyfamily said:

In MD if the EZ Pass machine doesn’t detect the transponder then it automatically takes a scan of your rear license plate and matches up the account.

 

Also true in California for FasTrak. For at least the SF Bay Area FasTrak (might vary based on the toll authority in the State) you can register any number of vehicles on one transponder. If the transponder is not in the car or the battery in it has failed, etc. then license plate readers will detect the car. When I moved to SoCal I kept my Bay Area transponder and it works just fine here. But eventually I noticed that it no longer beeped when I went through the detectors. Come to find out they were billing my account based on license plate rather than on transponder which had died.

 

I know a number of people in the SF Bay area who added their antique cars onto their FasTrak account and never put the transponder in their old cars, just relied on the license plate readers. Seemed to work just fine for them. Actually, better than just fine for at least a while: Apparently there was a window where the license plate detectors on the Golden Gate Bridge had some sort of trouble reading the really old YOM license plates so a few people I know were not billed for using the bridge in their old cars.

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14 hours ago, Crazyfamily said:

In MD if the EZ Pass machine doesn’t detect the transponder then it automatically takes a scan of your rear license plate and matches up the account.

Kansas does that also, but the license is read as the car exits.  Not knowing where you got on, you may be charged from a point farther up the road than where you got on.  I got charged once for getting on 50 miles farther back than I actually did.  

 

On the Roadmaster Estate wagon, I've since found out that a number of owners of other RMEW put the transponder in the forward facing bulge of the moon roof.

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21 hours ago, ply33 said:

 

Despite Federal law that requires all toll road authorities to use a unified national standard by last year

Actually Oct 2016.

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