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Tire Pressure Sensor Calibration


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Join Date: Dec 2006
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March 27th, 2007, 2:48 PM   #1  
Tire Pressure Sensor Calibration

Will be rotating wheels/tires on my 07 Hoe and was wondering how to reset the sensors to read the correct tire location. Is this covered in the Owner's manual?

Regards,
DaveK

 
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March 27th, 2007, 3:49 PM   #2  
RE: Tire Pressure Sensor Calibration

ORIGINAL: DaveK
Is this covered in the Owner's manual?
yep

 
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March 27th, 2007, 9:46 PM   #3  
RE: Tire Pressure Sensor Calibration

page 519

 
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March 27th, 2007, 11:26 PM   #4  
RE: Tire Pressure Sensor Calibration

Make sure you are close to a location where you can refill the air in your tires. I had to let alot of air out of each one and wouldn't want to drive very far before refilling...
Resetting the TPMS Identification Codes
Each TPMS sensor has a unique identification
code. Any time you rotate your vehicleís tires or
replace one or more of the TPMS sensors,
the identification codes will need to be matched to
the new tire/wheel position. The sensors are
matched to the tire/wheel positions in the following
order: driverís side front tire, passengers side
front tire, passengers side rear tire, and driverís
side rear tire using a TPMS diagnostic tool.
See your GM dealer for service.
The TPMS sensors may also be matched to each
tire/wheel position by increasing or decreasing
the tireís air pressure. If increasing the tireís
air pressure, do not exceed the maximum inflation
pressure indicated on the tireís sidewall.
You will 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 will need to start over.
The TPMS sensor matching process is outlined
below:
1. Set the parking brake.
2. Turn the ignition switch to RUN with the
engine off.
3. Using the DIC, press the vehicle information
button until the RELEARN TIRE POSITIONS
message displays. If your vehicle does not
have the DIC buttons, press the trip odometer
reset stem located on the instrument panel
cluster until the RELEARN TIRE POSITIONS
message displays.
4. If your vehicle has the DIC buttons, press the
set/reset button. The horn will sound twice to
indicate the TPMS receiver is ready, and
the TIRE LEARNING ACTIVE message will
display. If your vehicle does not have the DIC
buttons, press and hold the trip odometer
reset stem until the horn chirps twice and the
TIRE LEARNING ACTIVE message is
displayed.
5. Start with the driverís side front tire.
6. Remove the valve cap from the valve cap
stem. Activate the TPMS sensor by
increasing or decreasing the tireís air pressure
for five seconds, or until a horn chirp
sounds. The horn chirp, which make take up
to 30 seconds to sound, confirms that the
sensor identification code has been matched
to this tire and wheel position. To decrease
air-pressure out of a tire you can use the
pointed end of the valve cap, a pencil-style air
pressure gage, or a key.
7. Proceed to the passengerís side front tire, and
repeat the procedure in Step 6.
8. Proceed to the passengerís side rear tire, and
repeat the procedure in Step 6.
9. Proceed to the driverís side rear tire, and
repeat the procedure in Step 6.
10. After hearing the confirming horn chirp for the
driverís side rear tire, the horn chirp will sound
two more times to signal the tire learning
mode is no longer active. Turn the ignition
switch to LOCK.
11. Set all four tires to the recommended air
pressure level as indicated on the Tire
and Loading Information label.
12. Put the valve caps back on the valve stems

 
Join Date: Mar 2007
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March 28th, 2007, 12:14 AM   #5  
RE: Tire Pressure Sensor Calibration

Is there any other way to do this relearn process? I was thinking about putting nitrogen in my tires, but don't want to be letting it out and filling with regular air after each rotation.


 
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March 28th, 2007, 12:33 AM   #6  
RE: Tire Pressure Sensor Calibration

I think the dealer has a widget that can interrogate the sensors and do it without releasing pressure. Do a search on this forum. I just don't remember the name of the tool.

But when you fill with N2, aren't you going to have to fill and release a couple of times to purge out atmospheric air and moisture?

 
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March 28th, 2007, 4:24 AM   #7  
RE: Tire Pressure Sensor Calibration

ORIGINAL: 73shark
But when you fill with N2, aren't you going to have to fill and release a couple of times to purge out atmospheric air and moisture?
The process for filling with N2 involves draining all the air out before refilling with N2 (Mixing N2 with regular air kinds of defeats the purpose). It is actually pretty cool how the N2 machine fills all 4 tires at once.

I have not had to use the relearn process yet, but I would probably just put in extra N2 before you start the process or just do it while the guys are filling you tires with N2. The N2 fillling station at my dealer is right out front in the drive in service lane (Not sure if yours is) so it would be easy for me to do without having to go in the back / service bay.

 
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March 29th, 2007, 1:00 AM   #8  
RE: Tire Pressure Sensor Calibration

The process for filling with N2 involves draining all the air out before refilling with N2
How does one drain all of the air out?

 
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March 29th, 2007, 2:15 AM   #9  
RE: Tire Pressure Sensor Calibration

ORIGINAL: 73shark
How does one drain all of the air out?
The N2 machine is hooked up to all 4 tires which then sucks (removes, drains or whatever the correct word is) all the old air out and then fills them all with N2.

 
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March 23rd, 2008, 2:43 AM   #10  
RE: Tire Pressure Sensor Calibration

I am pissed. I rotated my own tires yesterday. I was not sure if I wanted to re-train TPMS. However I said lets do it, how bad can it be. So first I read the threads in our forum, and the manual, and started the job. After training the third wheel, BAM! I timed out. And then I was not able to excite any sensor. Believe me I did it right. I took it to the dealer today, and they charged me $20 to re-train the TPMS. First they tried with the procedure on the manual and sure enough it did not work. Then they used a special tool for exciting the sensors. That worked.

Do I have to pay $20 to the dealer to do this? Shouldn't this be covered by the warranty? It is a procedure stated on the manual, but that does not work. I have the new series of rubber stem TPMS sensors.

 
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