Greg_E

https://www.corvetteforum.com/forums...lve-stems.html

Post #9 by BC shows the 2001-2004 sensor with the clock face date code in the lower right.

MSG C5

Thanks again. I received the four sensors today via Amazon and without taking them out of each individual bag, by using a magnifying glass, I was able to see the arrows in the lower corner of each sensor. Based on what I saw, below are the manufacture dates...

Sensor 1: April 2010
Sensor 2: April 2010
Sensor 3: March 2012
Sensor 4: June 2012

So based on this, they sold me two sensors that are already over 6 years old. I'm not sure if these suppliers rotate stock, however based on these dates, should I return the sensors? If so, what is the best way to order sensors to confirm that the manufacture date is a recent as possible?

Greg_E

I would send all of them back.
See if you can can find the Schraeder aftermarket sensors. They make the GM sensor. If your buying from a company that specializes in tire sensors, the stock probably turns over faster. I've read where others have had the same problem when buying the GM sensors.

MSG C5

Thanks. Typically, what is the oldest manufacture date that I should accept? Or, how long can these sensor batteries stay dormant?

Greg_E

I wouldn't accept anything older than a year, but that's just me. I can't say how long an unused sensor will last but the battery will degrade over time whether it's used or not.
TPMSDirect sells the Schraeder 20117 for a 2004 for about $70. Give them a call and ask if they have fresh stock. I've never purchased from them so I can't speak on that.
Tirerack has what looks to be the same sensor for $42 P/N 9117. They probably have good stock turnover.

QCVette

Rock Auto has Schrader's for $30 on a "closeout". They have closeouts fairly often though. I got mine as a closeout a couple of years ago.

I think they go through a lot of sensors so they should be fairly current dates. When I got mine they were all about a year old.

Good luck.

stc

I have a RR Tire Pressure Low sign on my 2004. I have put the pressure up to 40lbs and the display stays on.

Am I correct to assume I need a new sensor.If I do I keep seeing reference to using a magnet to program the sensor. How do I do this?

Thanks,

Stephen

stc

The pressure was at 30, similar to the others and I did drive it around but with no success.

MSG C5

Update - I sent the original 4 sensors I received back to Amazon for a refund and I ordered 4 new sensors through Forum Vendor GM Partshouse. I sent them an email confirming that I need "fresh" sensors and they sent me four new sensors. They arrived today and they all appear to have been manufactured in 2015 so good news. Also note that the sensors manufactured after 2012 now show the two digit year date embossed on the little clock, so all mine list "15". The arrow then points to the month manufactured since the clock displays 1-12.