DaveK

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

engine2

yep

engine2

page 519

tahoe07

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 vehicle’s 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: driver’s side front tire, passengers side

front tire, passengers side rear tire, and driver’s

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 tire’s air pressure. If increasing the tire’s

air pressure, do not exceed the maximum inflation

pressure indicated on the tire’s 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 driver’s side front tire.

6. Remove the valve cap from the valve cap

stem. Activate the TPMS sensor by

increasing or decreasing the tire’s 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 passenger’s side front tire, and

repeat the procedure in Step 6.

8. Proceed to the passenger’s side rear tire, and

repeat the procedure in Step 6.

9. Proceed to the driver’s side rear tire, and

repeat the procedure in Step 6.

10. After hearing the confirming horn chirp for the

driver’s 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

OSU_07Hoe

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.

73shark

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?

engine2

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.

73shark

How does one drain all of the air out?

engine2

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.

bimmerborn

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.