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How to reset TPMS on a 2008 Jeep Liberty

Temp. has been a constant 7 F outside for the last week , tire pressure on all four wheels has been stating as low as 26lbs and once I drive on them for an half an hour they are back up to 29lbs , but the system does not shut off. I know once they warm up enough ,they probably will reach the 31lbs as normal , and shut off , but is there not a way of resetting to a number I call low ? 
T.

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My only suggestion to this problem is to put the cold pressures up 5 psi to counter-act the temp. change. nitrogen filled tires are becoming more popular these days as they keep a stable pressure in a much wider temp span. and nitrogen is safer for tpms sensors in the wheels

Posted on Nov 22, 2008

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2008 Lexus ES 350 low tire pressure warning light


1) go to a gas station with an air pump. Unless u have an inflator/compressor at home with the tireattachment

2) lower all 5 air pressures including the spare in the trunk to maybe about 28 PSI

3) now reset the TPMS (on the 07 there is a button to "calibrate" the TPMS and it is located under the dash. I presume it is the same on the 08.)

4) now bring the pressue back up to 30/32 or whatever it says on the door area


If this doesn't work, it is possible u have a defective TPMS
but my bet right now would be that someone "calibrated" the TPMS to the current tire pressure so the light is constantly on. It happened to me before when my daughter was messing around and hit that button.

Oct 03, 2016 | 2008 Lexus ES 350

1 Answer

Tpm reset 2008 isuzu i290


it resets every time you key on.
the Tire pressure monitoring system. TPMS.
on good cars, the system tells you exactly what is wrong.(dash)
EG, my jeep shows, R/F tire bad. so replace that sensor
or if tad older car,? i must use my scan tool to see which sensor is failing, on mine even the spare must work.....

so if no scan tool and a "intellectually challenged")ECU.(PCM) per above....
then what to do, tool-less? (no scanner tool for pcm no scan for TPMS)
you go to any tire shop in town, and say, scan my tires.
we have this scanner and wave it over the stems.
omg one is dead.
or one reads wrong fibs.
or other errors.... (over temp, serial wrong, etc)
it's just a battery powered sensor. on each rim stem.

that be about it....

Mar 01, 2015 | 2008 Isuzu I 290

1 Answer

Tpms light stays on my vehicle doesnt have tpms on it 2006 jeep liberty


you pealed all the tires, to see them all missing? really?
that's a good one, I love the crazy symptoms like that.
my guess, is the BCM has lost its noodle?
why not scan the PCM OBD2 port and see all the errors.
i bet you have some... for sure.
using a real scan tool, that can do all jeep codes. (ask)
a cheap $25 cant do that.

according to alldata.com
the car does have it, so?
here is the TSB last line , on topic
Please be aware that if the Wireless ControlModule (WCM) is replaced, the TPM placard values may need to be reprogrammed. The
TPM placard values do NOT need to be updated if the WCM has NOT been replaced, the
TPM placard values are properly set at the factory


so if you set tire pressure to the driver door pressures stated
including spark 5 tires.
and you drive 10 miles and the lamp dont go out.
then it needs service.
do not go to a tire store, as they are required by law to fix it, then and there, (held hostage)
watch out.
I had to buy the tools for mine to find the bad sensor.
on newer years, the dash will tell you which tire fails but not my year.
if you have the EVICs option, it will tell you this vital data.

the experts say, all have TPMS this year, this car. USA.
1st google hit( luck i guess)
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=72020

cars with no EVIC just glows an idiot lamp, no facts !

rule 1:
You can also look at the valve stems. If they have a hex nut shaped piece by the wheel that's the sensor.
yes ,do look at each tire.

Apr 19, 2014 | 2006 Jeep Liberty

1 Answer

Tire Pressure Warning is on and yet the tires are full of air


Hello,
Maybe we can help.

Set your tire pressure to the recommended factory air pressures. (to find this look at the placard that is located in your driver side door jam.) After setting all 4 tires to the correct pressure drive normally. If the TPMS (Tire Pressure Monitoring System) light doesn't turn off within 24 hours have the TPMS sensors checked at a local wheel and tire retailer or at the dealer. TPMS sensors have batteries in them that last an average of 5-7 years. If one of the batteries is dead it will trigger the system.

FYI, all of our stores can quickly troubleshoot your TPMS system and we stock most replacement TPMS sensors if you end up needing a new one. To find a local Discount Tire near you please visit www.discounttire.com/.

Nov 26, 2013 | 2008 Mercury Mariner

2 Answers

My front wheel sensor shows low tire pressure, but it is fine. Is there a reset for that?


If its reading low and the tire pressure is correct there is a problem with that sensor. Typically they need to be replaced in order to correct the problem. A TPMS tool capable of displaying TPMS sensor data would confirm the bad reading.

They display the tire pressure as a convenience. They don't have to display the pressures and many makes/models do not.

The level of sophistication with these systems is slowly improving. Many newer models will automatically know where the tire is and display it correctly. Unfortunately yours need to be relearned manually after every tire rotation which is very common with earlier systems. It is assumed that this is done after every tire rotation which would then make the displayed tire locations correct.

If you are confident that the correct tire location is being displayed than I wouldn't see any issue with replacing that sensor. If you are not confident the correct tire location is being displayed than it wouldn't be a bad idea to do a relearn procedure.

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 and hold the Remote Keyless Entry (RKE)
transmitter's LOCK and UNLOCK buttons, at the
same time, for about five seconds to start the TPMS
learn mode. The horn sounds twice indicating the
TPMS receiver is ready and in learn mode.
4. Start with the driver side front tire. The driver side
front turn signal also comes on to indicate that
corner's sensor is ready to be learned.
5. Remove the valve cap from the tire's valve
stem. Activate the TPMS sensor by increasing
or decreasing the tire's air pressure for about
eight seconds. The horn chirp, can take up to
30 seconds to sound. It chirps one time and then
all the turn signals flash one time to confirm the
sensor identification code has been matched to
the tire/wheel position.
6. The passenger side front turn signal comes on to
indicate that corner sensor is ready to be learned.
Proceed to the passenger side front tire and
repeat the procedure in Step 5.
7. The passenger side rear turn signal comes on to
indicate that corner sensor is ready to be learned.
Proceed to the passenger side rear tire and
repeat the procedure in Step 5.
8. The driver side rear turn signal comes on to
indicate that corner sensor is ready to be learned.
Proceed to the driver side rear tire, and repeat
the procedure in Step 5.
9. After hearing the single horn chirp for the driver
side rear tire, two additional horn chirps sound
to indicate the tire learning process is done.
Turn the ignition switch to LOCK/OFF.
If no tires are learned after entering the TPMS learn
mode, or if communication with the receiver stops, or
if the time limit has expired, turn the ignition switch to
LOCK/OFF and start over beginning with Step 2.
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.

This info can also be found on page 5-66 of your owners manual.

Feb 11, 2011 | 2008 Chevrolet Malibu

1 Answer

Service tire monitor on what is the problem? how do you reset the system?


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.

Nov 23, 2010 | 2006 GMC Yukon

3 Answers

I HAVE A 2008 CHEVY COBALT, THE CHECK TIRE PRESSURE LIGHT IS STAYING ON. HOW DO I GET IT SHUT OFF?


All you should need to do is check and set all tire pressures and make sure to check the spare also, after all tires are set with air you then drive a few blocks and the light should reset if the light does not reset then you will need to find out which wheel has a bad air pressure sensor, this is done with a tool that is put on the valve stem or a scan tool to see which tire is showing the wrong pressure, hope this helps.

Oct 27, 2010 | 2008 Chevrolet Cobalt

2 Answers

I also have a 2005 jeep liberty with the same light on top left corner. horse-shoe with and exclamation in it.


That is the tire pressure sensor light. It will come on if one or more of the tires are over-inflated or under-inflated. It will also come on if there is a signal problem with one or more of the sensors.

Oct 18, 2009 | 2005 Jeep Liberty

3 Answers

How do i reset the tpms on a 08 implala SS after a tire rotation,without a owners manual


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.

Aug 31, 2009 | 2008 Chevrolet Impala

2 Answers

How to reset the tire pressure on a 08' chevy tahoe?


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.

Jul 28, 2009 | 2008 Chevrolet Tahoe

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