: Registering Tire Pressure Sensors



New Bee In New York
09-20-10, 10:28 PM
In the not too distant future I'll be installing new wheels fitted with winter tires and pressure sensors. Can the registering of the new sensors be as easy as it is on my C5 (magnet) or will I need to find someone with a Tech I or II?

neuronbob
09-20-10, 10:59 PM
I'm not sure how to use a magnet to register the sensors, but I had to do this a few weeks ago after having aftermarket wheels with new sensors installed. The entire procedure is in the owner's manual. Lots of secret handshakes but it works. From page 5-79 of my manual:



TPMS Sensor Matching Process
Each TPMS sensor has a unique identification code. Any time you replace one or more of the TPMS sensors or rotate your vehicle’s tires, the identification codes need to be matched to the new tire/wheel position. The sensors are matched to the tire/wheel positions in the following order: driver side front tire, passenger side front tire, passenger side rear tire, and driver side rear tire using a TPMS diagnostic tool. See your dealer/retailer for service.
The TPMS sensors can also be matched to each tire/ wheel position by increasing or decreasing the tire’s air pressure. If increasing the tire’s air pressure, do not exceed the maximum inflation pressure indicated on the tire’s sidewall. To decrease the tire’s air-pressure use the pointed end of the valve cap, a pencil-style air pressure gage, or a key.
You have two minutes to match the first tire/wheel position, and five minutes overall, to match all four tire/wheel positions. If it takes longer than two minutes, to match the first tire and wheel, or more than
five minutes to match all four tire and wheel positions, the matching process stops and you need to start over.
The TPMS matching process is outlined below:
1. Set the parking brake.
2. Turn the ignition switch to ON/RUN with the engine off.
3. Press the Remote Keyless Entry(RKE)transmitter’s lock and unlock buttons at the same time for approximately five seconds. The horn sounds twice to signal the receiver is in relearn mode and Tire Learning Active message displays on the DIC screen.
4. Start with the driver side front tire.
5. Remove the valve cap from the valve stem. Activate the TPMS sensor by increasing or decreasing the tire’s air pressure for 10 seconds, or until a horn chirp sounds. The horn chirp, which can take up to 30 seconds to sound, confirms that the TPMS sensor identification code has been matched to this tire position.
6. Proceed to the passenger side front tire, and repeat the procedure in Step 5.
7. Proceed to the passenger side rear tire, and repeat the procedure in Step 5.
8. Proceed to the driver side rear tire, and repeat the procedure in Step 5.
9. After hearing the confirming horn chirp, for the driver side rear tire, the horn sounds two more times to signal the tire learning mode is no longer active. Turn the ignition switch to LOCK/OFF.
10. Set all four tires to the recommended air pressure level as indicated on the tire and loading information label.
11. Put the valve caps back on the valve stems.

Hope this helps. It's a little cumbersome but it works.

cbloveday
09-20-10, 11:00 PM
The process is listed in the manual. I do it everytime I switch from summer, winter and drag wheels.

TPMS Sensor Matching Process

Each TPMS sensor has a unique identification code. Any
time you replace one or more of the TPMS sensors or
rotate your vehicle’s tires, the identification codes need to
be matched to the new tire/wheel position. The sensors
are matched to the tire/wheel positions in the following
order: driver side front tire, passenger side front tire,
passenger side rear tire, and driver side rear tire using a
TPMS diagnostic tool. See your dealer/retailer for
service.
The TPMS sensors can also be matched to each tire/
wheel position by increasing or decreasing the tire’s air
pressure. If increasing the tire’s air pressure, do not
exceed the maximum inflation pressure indicated on the
tire’s sidewall. To decrease the tire’s air-pressure use the
pointed end of the valve cap, a pencil-style air pressure
gage, or a key.
You have two minutes to match the first tire/wheel
position, and five minutes overall, to match all four
tire/wheel positions. If it takes longer than two minutes,
to match the first tire and wheel, or more than
five minutes to match all four tire and wheel positions,
the matching process stops and you need to start over.
The TPMS matching process is outlined below:
1. Set the parking brake.
2. Turn the ignition switch to ON/RUN with the
engine off.
3. Press the Remote Keyless Entry (RKE) transmitter’s
lock and unlock buttons at the same time for
approximately five seconds. The horn sounds twice
to signal the receiver is in relearn mode and Tire
Learning Active message displays on the DIC
screen.
4. Start with the driver side front tire.
5. Remove the valve cap from the valve stem. Activate
the TPMS sensor by increasing or decreasing the
tire’s air pressure for 10 seconds, or until a horn
chirp sounds. The horn chirp, which can take up to
30 seconds to sound, confirms that the TPMS sensor
identification code has been matched to this tire
position.
6. Proceed to the passenger side front tire, and repeat
the procedure in Step 5.
7. Proceed to the passenger side rear tire, and repeat
the procedure in Step 5.
8. Proceed to the driver side rear tire, and repeat the
procedure in Step 5.
9. After hearing the confirming horn chirp, for the
driver side rear tire, the horn sounds two more
times to signal the tire learning mode is no longer
active. Turn the ignition switch to LOCK/OFF.
10. Set all four tires to the recommended air pressure
level as indicated on the tire and loading information
label.
11. Put the valve caps back on the valve stems.

New Bee In New York
09-21-10, 12:11 AM
Thank you so much guys. If I remembered that it was in the manual, I wouldn't have asked. I appreciate your responses.

One more question ...
I guess it's a little easier to deflate the tire to activate the sensor. In doing so, do I continue to release air until I hear the horn beep or do I just release air for 5 or 10 seconds and wait for the beep?

Thanks again for your help.

BTW, I use a magnet on my 2002 Corvette. The sensors there are an earlier version and they were activated by simply holding a magnet (I use an old speaker magnet) near the valve stem. This activates the sensor and the horn beeps. It's a real easy procedure but, as usual, as time goes by, things usually get a lot more complicated. :bonkers:

cbloveday
09-21-10, 04:56 AM
I continue to release air til I hear a beep.
Sorry for the info repeat.
Anonfrank beat my by a full minute. Man, I just can't win can I?

ewill3rd
09-21-10, 06:47 AM
You need only increase or decrease the air pressure by 1-2 psi which should take about 8-10 seconds, then wait for the beep before proceeding.
This "pressure increase/decrease" method used to work on most everything and it still should, but on some of our new vehicles they don't list it anymore.
You sometimes need a tool that activates the sensor, and the magnet method doesn't work anymore.

wfo
09-21-10, 09:52 AM
Yes, easy...Looks worse in writing. The whole process is a five to 8 minutes. Just follow the directions in the manual. Everything's thru your key fob.

New Bee In New York
09-21-10, 10:24 AM
Yes, easy...Looks worse in writing. The whole process is a five to 8 minutes. Just follow the directions in the manual. Everything's thru your key fob.

Other than using the key fob to initiate the sensor learn procedure, does the key fob come into play in any other aspect of this process? :hmm:

wait4me
09-21-10, 11:46 AM
Dont forget that you have to first drive your car past 25mph to wake up the sensors for a few minutes, then you have a 15 minute window for the relearn.

baabootoo
09-21-10, 04:35 PM
Dont forget that you have to first drive your car past 25mph to wake up the sensors for a few minutes, then you have a 15 minute window for the relearn.

I never heard that, even with my G8 GXP. They seemed to work ok after setting them. Is this a hint or something new?

wait4me
09-21-10, 05:19 PM
The modules are in sleep mode after sitting 15 minutes to conserve power. They only update like once in 30-50 minutes during that time. When they are spinning past 25mph they are in a wake up mode and report thier values faster, Then if they see a change in pressure, they update again in a few seconds. So then you have 15 minutes before they go back into sleep mode.