2007 yukon tpms keeps blinking to check tire pressure

Just drive it. Sometimes it just takes a little time for the system to update

Step 1:

You could have a bad tpms sensor in one of the tires here's how to check it

Step 2:

Reading TPMS codes and clearing them
There is a simple procedure to perform a self diagnostic and clear the codes.

1) Turn IGN switch to ON.
2) Locate the TPMS warning check connector. It is a single loose wire with a connector located under the dash next to the steering column. It may be bundled with the OBDII diagnostic connector.
3) Using a suitable piece of bare wire inserted into the connector (a paperclip will do), momentarily ground the wire to the chassis.

NOTE: If you are uncomfortable doing this, then don't. You could damage your vehicle if the wrong wire is grounded.

Step 3:

4) The TPMS low tire pressure warning light will blink error codes as follows:

5sec. ON - 5sec. OFF
Long (1 sec) blink = First digit (2 blinks = 2)
Short (0.2 sec) blink = Second digit (ie 3 short blinks = 3)

There is a 2 second pause between multiple codes.The cycle will keep repeating starting with 5sec. ON

Codes:

15 - Front LH tire pressure drops to 26 psi or less.
16 - Front RH tire pressure drops to 26 psi or less.
17 - Rear RH tire pressure drops to 26 psi or less.
18 - Rear LH tire pressure drops to 26 psi or less.
21 - Data from front LH transmitter can not be receive.
22 - Data from front RH transmitter can not be receive.
23 - Data from Rear RH transmitter can not be receive.
24 - Data from Rear LH transmitter can not be receive.
31 - Checksum data from front LH transmitter is malfunctioning.
32 - Checksum data from front RH transmitter is malfunctioning.
33 - Checksum data from rear RH transmitter is malfunctioning.
34 - Checksum data from rear RH transmitter is malfunctioning.

5 short blinks - System is OK.

5) To clear the codes, turn the ignition OFF.

All you have to do to reset the TPMS light is make sure all your tires are set around 35-38 psi then drive it a a couple miles and the light will turn off. If it is blinking then you have a sensor issue and you will have to take it to the dealer. The tire pressure warning light is yellow not red."Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system is not operating properly. The TPMS malfunction indicator is combined with the low tire pressure telltale. When the system detects a malfunction, the telltale will flash for approximately one minute and then remain continuously illuminated. This sequence will continue upon subsequent vehicle start-ups as long as the malfunction exists. When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire pressure as intended. TPMS malfunctions may occur for a variety of reasons, including the installation of replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels allow"

If it is on steady it means you need to check the air pressure in your tires. If you open the drivers front door there will be a sticker that says what the tires are supposed to be inflated to. If one tire is low and the others are fine you have a leak and need to get the tire looked at for a repair.

If it is blinking it means there is a problem with the TPMS system and needs to be looked at by a shop that is capable of diagnosing this system.

TPMS stands for Tire Pressure Monitoring System.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

TIRE PRESSURE MONITOR SYSTEM
The Tire Pressure Monitor System (TPMS) uses radio and sensor technology to check tire pressure levels. If your vehicle has this feature, sensors are mounted on each tire and wheel assembly, except the spare tire. The TPMS sensors monitor the air pressure in your vehicle's tires and transmit tire pressure readings to a receiver located in the vehicle.

The TPMS is designed to alert the driver, if a low tire pressure condition exists. This system also allows the driver to check tire pressure levels using the Driver Information Center (DIC).

When a low tire pressure condition is detected, the TPMS displays the "CHECK TIRE PRESSURE" warning message on the DIC, and at the same time illuminates the low tire pressure warning symbol.

You may notice, during cooler weather conditions, that the tire pressure monitor light, located on the instrument panel cluster, and the "CHECK TIRE PRESSURE" message will appear when the vehicle is first started and then turn off as you start to drive the vehicle. This could be an early indicator that the tire pressures are getting low and need to be inflated to the proper pressure.

Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire inflation pressure label. (If your vehicle has tires of a different size than the size indicated on the vehicle placard or tire inflation pressure label, you should determine the proper inflation pressure for those tires.)

As an added safety feature, your vehicle has been equipped with a tire pressure monitoring system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires is significantly under-inflated.

Accordingly, when the low tire pressure telltale illuminates, you should stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly under-inflated tire causes the tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling and stopping ability.

Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver's responsibility to maintain correct tire pressure, even if under-inflation has not reached the level to trigger illumination of the TPMS low tire pressure telltale.

The "CHECK TIRE PRESSURE" warning message and low tire pressure light (telltale) will appear at each ignition cycle until the tires are inflated to the correct inflation pressure.

The Tire and Loading Information label (tire information placard) shows the size of your vehicle's original tires and the correct inflation pressure for your vehicle's tires when they are cold.

Your vehicle's TPMS can alert you about a low tire pressure condition but it does not replace normal tire maintenance.

NOTICE: Do not use a tire sealant if your vehicle has Tire Pressure Monitors. The liquid sealant can damage the tire pressure monitor sensors.

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. 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: LF TIRE (left front tire on the driver's side of the vehicle), RF TIRE (right front tire on the passengers side of the vehicle), RR TIRE (right rear tire on the passengers side of the vehicle), and LR TIRE (left rear tire on the driver's side of the vehicle).

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 TPMS 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 headlamp switch from "OFF" to the parking lamps setting four times within three seconds. A double horn chirp will sound and the TPMS low tire warning light will begin to flash. The double horn chirp and flashing TPMS warning light indicate that the TPMS matching process has started. The TPMS 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 driver's side front tire.
5. Remove the valve cap from the valve cap stem. Activate the TPMS 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 1. To let 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.
6. Proceed to the passenger's side front tire, and repeat the procedure in Step 5.
7. Proceed to the passenger's side rear tire, and repeat the procedure in Step 5.
8. Proceed to the 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 TPMS warning light is still flashing. If it is, turn the ignition switch to LOCK to exit the sensor matching process. If the TPMS warning light is not flashing, the five minute time limit has passed and you will need to start the process over beginning with Step 1.
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. The spare tire does not have a TPMS sensor. If you replace one of the road tires with the spare, the "CHECK TIRE PRESSURE" message will be displayed on the DIC screen. This message should go off once you re-install the road tire containing the TPMS sensor. The "SERVICE TIRE MONITOR" message is displayed when the TPMS is malfunctioning. One or more missing or inoperable TPMS sensors will cause the service tire monitor message to be displayed.

You either have low tire pressure in a tire
A bad tire pressure sensor in a wheel
Or just need to reset the TPMS,if you rotated your tires.

Go to a shop with a TPMS tool or scanner with TPMS software, and have it reset.

First, check your tire pressure on all tires. If one or more are low, add air.

If the pressures are all okay, it sounds like damage was done to one of the TPMS sensors inside a tire. Go back to the place that installed the tires.

unhook the battery for 20 min hopefully this will rest the puter

TPMS Sensor Matching Procedure

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 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 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.

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 sensor 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 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 may take up to 30 seconds to sound, confirms that the sensor identification code has been matched to this tire and wheel 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. The horn sounds two times to indicate the sensor identification code has been matched to the driver side rear tire, and the TPMS sensor matching process is no longer active. The TIRE LEARNING ACTIVE message on the DIC display screen goes off.
9. 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.

You can reset the TPMS system on your Toyota Highlander. There are instructions in the owner's manual on how to do so. However, resetting the system without checking the cold-air inflation of the tires is not necessarily solving the problem. The recommended tire pressure inflation sticker is located on the driver-side door frame. On the Highlander, it calls for 30 pounds per square inch (psi) of tire pressure per tire, including the full-sized spare. If the Highlander had a donut spare tire, it will not have a TPMS sensor and subsequently will not effect the TPMS system one way or the other. To reset the TPMS system in the Highlander, there is a reset button under the driver-side dashboard that needs to be held for a period of time (a few seconds) while the ignition key is in the "key-on/engine-off" mode. The TPMS warning light will blink rapidly for a few more seconds, and the system will reset itself. Refer to the manual for the exact procedure. If the TPMS warning light reoccurs, have the system or tires checked by a professional. Good luck and hope this helps, keep me posted. Be glad to help.