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Discuss Low Tire pressure light on 2002 Monte Carlo in the alt.autos.gm forum at Car Dealer Forums; I recently purchased a 2002 Monte Carlo SS Pace Car version. The lot balanced the ...
  1. #1
    yezuamld
    Guest

    Default Low Tire pressure light on 2002 Monte Carlo

    I recently purchased a 2002 Monte Carlo SS Pace Car version. The lot
    balanced the front tires, then about 2 days later the low pressure
    light came on. I took and back and had it reset, but now about 2 weeks
    later the light is back on again. Is this normal or is it a bad sensor?
    Also I read a reply to a similar question on this site and the reply
    was to "reset the dash switch" to turn off the light........how do you
    reset the dash switch?


  2. #2
    N8N
    Guest

    Default Re: Low Tire pressure light on 2002 Monte Carlo


    yezuamld wrote:
    > I recently purchased a 2002 Monte Carlo SS Pace Car version. The lot
    > balanced the front tires, then about 2 days later the low pressure
    > light came on. I took and back and had it reset, but now about 2 weeks
    > later the light is back on again. Is this normal or is it a bad sensor?
    > Also I read a reply to a similar question on this site and the reply
    > was to "reset the dash switch" to turn off the light........how do you
    > reset the dash switch?


    on my '05 Impala there are no pressure sensors, they are reading the
    speeds of the wheels through the ABS computer and throwing a light if
    there is a mismatch. Is it possible that you have one new tire and one
    worn tire?

    good luck

    nate


  3. #3
    Edwin Pawlowski
    Guest

    Default Re: Low Tire pressure light on 2002 Monte Carlo


    "yezuamld" <dmauzey@msn.com> wrote in message
    news:1155666217.599951.51130@h48g2000cwc.googlegro ups.com...
    >I recently purchased a 2002 Monte Carlo SS Pace Car version. The lot
    > balanced the front tires, then about 2 days later the low pressure
    > light came on. I took and back and had it reset, but now about 2 weeks
    > later the light is back on again. Is this normal or is it a bad sensor?
    > Also I read a reply to a similar question on this site and the reply
    > was to "reset the dash switch" to turn off the light........how do you
    > reset the dash switch?
    >


    Can I assume you've actually checked the pressure? If it is down about 3 to
    5 psi compared to the tire on the other side, the light will come on.

    On my care, it does not read pressure, but the computer counts the wheel
    revolutions and compares them. The low tire will turn more revolutions than
    the higher pressure tire and give the signal.
    Assuming the pressure is OK, on my car (leSabre), you just hold in the reset
    button for about 5 seconds and it will rest itself. Yours may be different.



  4. #4
    Scott Buchanan
    Guest

    Default Re: Low Tire pressure light on 2002 Monte Carlo

    Are the tires the same brand, size and equally worn? If not, from what the
    other guys said, this could cause the problem.


    "Edwin Pawlowski" <esp@snet.net> wrote in message
    news:s8tEg.8265$1f6.530@newssvr27.news.prodigy.net ...
    >
    > "yezuamld" <dmauzey@msn.com> wrote in message
    > news:1155666217.599951.51130@h48g2000cwc.googlegro ups.com...
    > >I recently purchased a 2002 Monte Carlo SS Pace Car version. The lot
    > > balanced the front tires, then about 2 days later the low pressure
    > > light came on. I took and back and had it reset, but now about 2 weeks
    > > later the light is back on again. Is this normal or is it a bad sensor?
    > > Also I read a reply to a similar question on this site and the reply
    > > was to "reset the dash switch" to turn off the light........how do you
    > > reset the dash switch?
    > >

    >
    > Can I assume you've actually checked the pressure? If it is down about 3

    to
    > 5 psi compared to the tire on the other side, the light will come on.
    >
    > On my care, it does not read pressure, but the computer counts the wheel
    > revolutions and compares them. The low tire will turn more revolutions

    than
    > the higher pressure tire and give the signal.
    > Assuming the pressure is OK, on my car (leSabre), you just hold in the

    reset
    > button for about 5 seconds and it will rest itself. Yours may be

    different.
    >
    >




  5. #5
    ROY BRAGG
    Guest

    Default Re: Low Tire pressure light on 2002 Monte Carlo

    On Monte Carlos and Impalas, the low pressure lilght must be rest through
    the radio panel.
    Roy
    "Scott Buchanan" <t120rv@pacifier.com> wrote in message
    news:12e7so3pooapl13@corp.supernews.com...
    > Are the tires the same brand, size and equally worn? If not, from what the
    > other guys said, this could cause the problem.
    >
    >
    > "Edwin Pawlowski" <esp@snet.net> wrote in message
    > news:s8tEg.8265$1f6.530@newssvr27.news.prodigy.net ...
    >>
    >> "yezuamld" <dmauzey@msn.com> wrote in message
    >> news:1155666217.599951.51130@h48g2000cwc.googlegro ups.com...
    >> >I recently purchased a 2002 Monte Carlo SS Pace Car version. The lot
    >> > balanced the front tires, then about 2 days later the low pressure
    >> > light came on. I took and back and had it reset, but now about 2 weeks
    >> > later the light is back on again. Is this normal or is it a bad sensor?
    >> > Also I read a reply to a similar question on this site and the reply
    >> > was to "reset the dash switch" to turn off the light........how do you
    >> > reset the dash switch?
    >> >

    >>
    >> Can I assume you've actually checked the pressure? If it is down about 3

    > to
    >> 5 psi compared to the tire on the other side, the light will come on.
    >>
    >> On my care, it does not read pressure, but the computer counts the
    >> wheel
    >> revolutions and compares them. The low tire will turn more revolutions

    > than
    >> the higher pressure tire and give the signal.
    >> Assuming the pressure is OK, on my car (leSabre), you just hold in the

    > reset
    >> button for about 5 seconds and it will rest itself. Yours may be

    > different.
    >>
    >>

    >
    >




  6. #6
    Silver Surfer
    Guest

    Default Re: Low Tire pressure light on 2002 Monte Carlo

    Document ID# 751368
    2002 Chevrolet Monte Carlo
    --------------------------------------------------------------------------------
    Tire Pressure Monitor Description and Operation
    The Tire Pressure Monitor (TPM) system alerts the driver when a large change
    in the pressure of one tire exists while the vehicle is being driven. The
    TPM system uses the Electronic Brake Control Module (EBCM), ABS wheel speed
    sensor inputs, class 2 serial data circuit, and the Instrument Panel Cluster
    (IPC) message center to perform the system functions. The EBCM contains the
    software to calculate relative tire pressure differences. The software
    requires approximately 30 minutes of straight line driving in each of the
    three different speed ranges to complete the calibration process in order to
    have full capability of detecting a tire pressure condition. The speed
    ranges are as follows:

    24-64 km/h (15-40 mph)
    64-113 km/h (40-70 mph)
    113-145 km/h (70-90 mph)
    Each speed range has 2 modes of tire pressure detection:

    Monitor Mode 1
    Monitor Mode 2
    The EBCM learns the tire pressure calibration for each speed range
    independently. In Monitor Mode 1, the EBCM has only partially learned the
    tire pressure calibration for the speed range and has limited detection
    capability for a tire pressure conditions. In Monitor Mode 2, the EBCM has
    fully learned the tire pressure calibration for the speed range and has full
    detection capability for a tire pressure condition. Once the TPM system is
    calibrated the EBCM monitors the ABS wheel speed sensor inputs, which will
    all be the same as the learned calibration if the tire pressures stay the
    same. If the pressure increases or decreases in a tire, so too will that
    tires circumference and radius, which causes that wheel speed sensor input
    to change. The EBCM recognizes this change in wheel speed as a tire pressure
    condition. If the pressure in one tire becomes at least 69 kPa (10 psi)
    higher or lower than the other three the EBCM commands the IPC message
    center to display the LOW TIRE PRESSURE warning message via a class 2 serial
    data circuit. This warning message is a re-configurable telltale and is
    ranked as lowest priority and may not be displayed if a higher priority
    message is requested at the same time. This message does not appear if more
    than one tire has high or low pressure, or if the system is not calibrated
    properly. The TPM system does not alert the driver to which tire is high or
    low. To turn off the LOW TIRE PRESSURE warning message, refer to Tire
    Pressure Monitor Reset Procedure .

    Document ID# 679494
    2002 Chevrolet Monte Carlo
    --------------------------------------------------------------------------------
    Tire Pressure Monitor Reset Procedure

    Important
    There are 3 different ways to reset the Tire Pressure Monitor (TPM) system.
    After resetting, the TPM system requires up to 30 minutes of straight line
    driving in each of the 3 speed ranges to complete the calibration process,
    for further information, refer to Tire Pressure Monitor Description and
    Operation . If the TPM system does not reset, or DTC C1245 remains current,
    refer to Diagnostic System Check - Tire Pressure Monitoring .

    Using the exterior lamp switch
    Adjust all tire pressures to the recommended kPa/psi. Refer to Tire
    Inflation Pressure Specifications in Maintenance and Lubrication, or to Tire
    Placard in General Information.
    Turn ON the ignition, with the engine OFF.
    Cycle the exterior lamp switch from OFF to parking lamps 3 times within 5
    seconds.
    Use the scan tool in order to clear the TPM DTC.
    Using the RDS radio, if equipped
    Adjust all tire pressures to the recommended kPa/psi. Refer to Tire
    Inflation Pressure Specifications in Maintenance and Lubrication, or to Tire
    Placard in General Information.
    Turn the ignition to ACC or ON, with the engine OFF.
    Turn the radio OFF.
    Press and hold the DISP button until SETTINGS is displayed.
    Press the SEEK up or down arrows until TIRE MON is displayed.
    Press the PREV or NEXT button to enter the submenu. RESET will be displayed.
    Press the DISP button, A chime will sound and DONE will be displayed.
    Scroll until EXIT is displayed.
    Press the DISP button to exit the TPM reset mode. A chime will sound to
    verify exit.
    Use the scan tool in order to clear the TPM DTC.
    Using the scan tool
    Adjust all tire pressures to the recommended kPa/psi. Refer to Tire
    Inflation Pressure Specifications in Maintenance and Lubrication, or to Tire
    Placard in General Information.
    Install the scan tool.
    Turn ON the ignition, with the engine OFF.
    With the scan tool select Special Functions.
    Select TIM Reset.
    Press the Reset soft key.
    Use the scan tool in order to clear the TPM DTC.

    "yezuamld" <dmauzey@msn.com> wrote in message
    news:1155666217.599951.51130@h48g2000cwc.googlegro ups.com...
    >I recently purchased a 2002 Monte Carlo SS Pace Car version. The lot
    > balanced the front tires, then about 2 days later the low pressure
    > light came on. I took and back and had it reset, but now about 2 weeks
    > later the light is back on again. Is this normal or is it a bad sensor?
    > Also I read a reply to a similar question on this site and the reply
    > was to "reset the dash switch" to turn off the light........how do you
    > reset the dash switch?
    >




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