ACDelco GM Original Equipment 25774006 Black Tire Pressure Monitoring System (TPMS) Sensor

Received four- they look ok, new in AC Delco bags, but I have not installed them yet so unable to test them.Will be getting them installed with new tyres at the end of November.December 1st: had new tyres installed yesterday with these new TPMS sensors. Worked straight away and so far have not triggered any warning, so good! (My original sensors kept triggering warnings; likely because batteries were old)

If you are a person that only puts OEM parts (like myself) on your GM when repairs are needed then these TPMS sensors are worth the $$. I got almost 16 years on the original TPMS sensors before the batteries started to act up. I figured putting the correct ones back in will pay off and probably be the last set I ever have to replace. You do not need a TPMS tool to program for the relearn procedure once installed. On most 2006-2009 GM's there is a horn sequence to follow once the vehicle is put into TPMS program mode.***On a side note, you will have to have these installed at a shop that has tire mounting/balancing equipment. The labor is not much to do this. I paid about $60+tax for all 4 existing tires to be dismounted, TPMS installed and tire mounted to rim. I told the shop I would do the relearn procedure and once the job was done it took 5 minutes in the parking lot to do the relearn. Make sure you are near an air pump when doing the relearn because it involved letting a few pounds of air out of each tire so the TPMS module knows the tire position of where each sensor is located. Also the AC Delco warranty always is a perk to buy there parts as well. LOL....

I bought four of these to use in a set of winter wheels/tires on my 2007 Trailblazer SS. These installed perfectly on Trailblazer 17" OEM wheels which originally didn't have the sensors.After running the calibration, everything is working great. The only catch is the nut/collar didn't come with these. I had to pick those up at the dealership, and they were $8 each. Overall it's nice to have the psi monitored on the dash, but the price is a little high for the entire setup.

I kept getting a warning on my DIC for my 2007 TrailBlazer telling me to service tire monitor. This happens when one or more TPMS sensors loses signal with the system. You can tell which TPMS sensor is going bad by scrolling through the DIC after receiving the message. Go to tire pressures and you will see "-- --" for one or more of the tire pressures on the DIC. This is due to the battery dying within the sensor. Sadly, due to NHTSA and DOT regulations, the design of the sensor is such that the battery cannot be replaced, but the entire sensor. The battery used is said to have a 10 year life span, but I only got about 8 years out of mine. Also, it is best to replace all (4) TPMS sensors at once especially is they are closing in on the 10 year mark.There are a few GM specific TPMS sensors out there, but you can determine which TPMS sensor that you need by looking at your RPO code list that is typically on a data plate inside of the glove box. If you have an RPO code of "UJ6" then this sensor will work on your GM vehicle.Also, do not forget to purchase a new ACDelco 15234846 sensor lock nut as well. You can possibly reuse the old lock nuts, but a lot of times they are corroded or damaged during removal. The lock nut is only an additional $6 each.

$200 later these did NOT correct the problem, the light has come back on each time these have been reset. I bought them primarily because they are “OEM” but they do not work correctly and the light keeps coming back on. I have reset the system manually twice (by the owners manual) and after that failed I went to Pepboys and had them reset them with a scan tool. Nothing works. Just a lot of money and time wasted to get nowhere. And had no product support or help. Todd S.

This is the best price that I could find for an AC Delco sensor for my GMC Envoy, so I bought four and had them in three days. I thought that since the price was so much lower than others that they might be old stock(not good because of the unchangeable battery)this however is NOT the case since the date code told me that they were made less than 1 year ago.Some have mentioned the mounting nuts not being included, well I bought the kit at Autozone at $1.99 per wheel,so $8.00 total. The reason for not reusing the old nut is that being aluminum on aluminum corrosion can cause the nut or shaft to be damaged when removed also there is a captive seal in the nut which is usually destroyed too. Just remember to get the mounting kit(some call it service kit)in advance because a tire store will charge you $5 a wheel or more.

Tire pressure monitoring device worked as advertised. I Had the mechanic install the device with no issues. Tire had to be removed.

These fit the Bill perfectly and programmed instantly on an 07 Envoy