TPMS only reading 15lbs... Help please...

[nc6600]

I put the oem 20's on my truck and the light stays on i just try not to look at it.

 

[MikeTheApeman]

Can the sensors be reset?

Found this in my manual:
TPM Sensor Identification Codes

Each TPM sensor has a unique identification code. Any time you rotate your vehicle's tires or replace one or more of the TPM sensors, the identification codes will need to be matched to the new tire/wheel position. Each tire/wheel position is matched to a sensor, by increasing or decreasing the tire's air pressure. The sensors are matched to the tire/wheel positions in the following order: left front (LF), right front (RF), right rear (RR) and left rear (LR).

You will have one minute to match the first tire/wheel position, and five minutes overall to match all four tire/wheel positions. If it takes longer than one minute, 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 TPM sensor matching process is outlined below:

1. Set the Parking brake.
2. Turn the ignition switch to RUN with the engine off.
3. Turn the exterior lamp switch from "Off" to "On" four times within 3 seconds. A double horn chirp will sound and the TPM low tire warning light will begin to flash. The double horn chirp and flashing TPM warning light indicate that the TPM matching process has started. The TPM warning light should continue flashing throughout the matching procedure. The SERVICE TIRE MONITOR message will be displayed on the Driver Information Center (DIC).
4. Start with the left (driver's side) front tire.
5. Remove the valve cap from the valve cap stem. Activate the TPM sensor by increasing or decreasing the tire's air pressure for 10 seconds, then stop and listen for a single horn chirp. The single horn chirp should sound within 15 seconds, confirming that the sensor identification code has been matched to this tire and wheel position. If you do not hear the confirming single horn chirp, you will need to start over with step number one. To let air-pressure out of a tire you can use the pointy end of the valve cap, a pencil-style air pressure gage or a key.
6. Proceed to the right (passenger's side) front tire, and repeat the procedure in Step 5.
7. Proceed to the right (passenger's side) rear tire, and repeat the procedure in Step 5.
8. Proceed to the left (driver's side) rear tire, and repeat the procedure in Step 5.
9. After hearing the confirming horn chirp for the left rear tire, check to see if the TPM warning light is still flashing. If yes, turn the ignition switch to 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

 

[OKLAGMCRUISER]

Found this in my manual:
TPM Sensor Identification Codes

Each TPM sensor has a unique identification code. Any time you rotate your vehicle's tires or replace one or more of the TPM sensors, the identification codes will need to be matched to the new tire/wheel position. Each tire/wheel position is matched to a sensor, by increasing or decreasing the tire's air pressure. The sensors are matched to the tire/wheel positions in the following order: left front (LF), right front (RF), right rear (RR) and left rear (LR).

You will have one minute to match the first tire/wheel position, and five minutes overall to match all four tire/wheel positions. If it takes longer than one minute, 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 TPM sensor matching process is outlined below:

1. Set the Parking brake.
2. Turn the ignition switch to RUN with the engine off.
3. Turn the exterior lamp switch from "Off" to "On" four times within 3 seconds. A double horn chirp will sound and the TPM low tire warning light will begin to flash. The double horn chirp and flashing TPM warning light indicate that the TPM matching process has started. The TPM warning light should continue flashing throughout the matching procedure. The SERVICE TIRE MONITOR message will be displayed on the Driver Information Center (DIC).
4. Start with the left (driver's side) front tire.
5. Remove the valve cap from the valve cap stem. Activate the TPM sensor by increasing or decreasing the tire's air pressure for 10 seconds, then stop and listen for a single horn chirp. The single horn chirp should sound within 15 seconds, confirming that the sensor identification code has been matched to this tire and wheel position. If you do not hear the confirming single horn chirp, you will need to start over with step number one. To let air-pressure out of a tire you can use the pointy end of the valve cap, a pencil-style air pressure gage or a key.
6. Proceed to the right (passenger's side) front tire, and repeat the procedure in Step 5.
7. Proceed to the right (passenger's side) rear tire, and repeat the procedure in Step 5.
8. Proceed to the left (driver's side) rear tire, and repeat the procedure in Step 5.
9. After hearing the confirming horn chirp for the left rear tire, check to see if the TPM warning light is still flashing. If yes, turn the ignition switch to 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

i'M not sure this will reset the tpms, but will just re assign them to the wheel in which they are installed, but it's worth a shot!

 

[NathanJax]

Found this in my manual:
TPM Sensor Identification Codes

That's what I meant by, "I tried resetting all the sensors. We heard the horn honk and all was well."

i'M not sure this will reset the tpms, but will just re assign them to the wheel in which they are installed, but it's worth a shot!

Your correct. it "assigns" the sensor in the rim to the receiver on each corner

 

[OKLAGMCRUISER]

i thought the dealer had a wand/scanner that could reset them...