TPMS keeps coming back

tC_Crazy · 04-23-2008, 10:15 PM

Well, I'm having trouble with the tire pressure monitor. The light keeps coming on, even after I reset the system (glovebox button) with cold tires. It will stay off for a couple days, but within 72 hours it always returns. I gave up on turning it off, so it just sits on my dash all the time. Pressure is 40psi all around so there's definitely no way the tires are low. Does anyone have suggestions before I waste a few hours at the dealership?

I'm not sure this is the cause, but I seem to have noticed it twice after using cruise control. Could just be a coincidence though.

bflythe · 04-23-2008, 10:37 PM

It may be a computer problem. You may need to take it to a mechanic and see if the computer itself needs to be reset

buderic · 04-23-2008, 10:47 PM

QUOTE (tC_Crazy @ Apr 23 2008, 10:15 PM)

Quote:

Well, I'm having trouble with the tire pressure monitor. The light keeps coming on, even after I reset the system (glovebox button) with cold tires. It will stay off for a couple days, but within 72 hours it always returns. I gave up on turning it off, so it just sits on my dash all the time. Pressure is 40psi all around so there's definitely no way the tires are low. Does anyone have suggestions before I waste a few hours at the dealership?

I'm not sure this is the cause, but I seem to have noticed it twice after using cruise control. Could just be a coincidence though.[/b]

What year?

Eric

Scion08 · 04-23-2008, 11:01 PM

my tc did this the first couple of months too. checked all the tires and they were fine so i took it in and it happened to be the spare. i guess theres a sensor on there too. check that.

Dr. Isotope · 04-23-2008, 11:27 PM

Are you resetting the system, or just pushing the button whenever the light comes on?

To reset the system:

--Turn the ignition switch to the ON position. If the low tire pressure warning light comes on, push and hold the tire pressure warning reset switch (in the glove box) until the warning light turns off and then release the switch.

--Now press and hold the tire pressure warning reset switch until the low tire pressure warning light blinks three times.

Note: initialization is *not* completed until driving at a speed of 19 mph or over for more than one hour. The tire pressure monitoring starts when initialization is completed.

SquallLHeart · 04-24-2008, 05:06 AM

there's also the possibility that the pressure is TOO high.

32/29 as recommended... and re-initialize as Doc mentioned. (hold until it blinks 3 times)

donutman · 04-24-2008, 06:52 PM

check your tires for a nail AND/OR if you got a tired patched before, you might want to repatch it. I had this problem as well.

rice eater · 04-25-2008, 03:52 AM

i had this problem in the beginning. Check the spare. Thats what my problem was

rice eater · 04-25-2008, 03:53 AM

OH yeah, your car cant be that old, take that beast back to the dealer and say HEY! where the eff is my warranty service. or something of the sort.

SquallLHeart · 04-25-2008, 06:13 AM

uhh yea....... that's a great way to get any work done to your car....

"hmm.. we may need you to leave it overnight for us to really diagnose the problem"
*you drive off*...

(few hours later...)

*work done and completed*
*technicians take it on a "test" drive*
"weeeeee!"

04-23-2008, 11:01 PM	#4 (permalink)
Scion08 RIP George James Join Date: Nov 2007 Location: Los Angeles Posts: 6,061	my tc did this the first couple of months too. checked all the tires and they were fine so i took it in and it happened to be the spare. i guess theres a sensor on there too. check that. __________________ My tC Picture Thread

04-24-2008, 05:06 AM	#6 (permalink)
SquallLHeart LED Maniac Join Date: Sep 2005 Posts: 2,957	there's also the possibility that the pressure is TOO high. 32/29 as recommended... and re-initialize as Doc mentioned. (hold until it blinks 3 times) __________________ your "friendly" ystc OG 2011 tC Light Runner project in progress *There's "STRONG", and then there's "RETARD* STRONG".**

04-24-2008, 06:52 PM	#7 (permalink)
donutman Pick your own - you deserve it. Join Date: Mar 2006 Posts: 9,389	check your tires for a nail AND/OR if you got a tired patched before, you might want to repatch it. I had this problem as well. __________________ RIP G

04-25-2008, 03:52 AM	#8 (permalink)
rice eater tC Freak Join Date: Mar 2008 Location: Fort Huachuca, AZ Posts: 334	i had this problem in the beginning. Check the spare. Thats what my problem was __________________ Race Inspired Cosmetic Enhancements. Rice. TRD Supercharger, NST 65mm Overdrive Pulley, MMW 4-2-1 Header / S pipe , Catback Exhaust, TRD struts, TRD springs, TRD front strut tie bar, TRD rear sway bar, DME engine torque damper, Viper 791XVR remote start system, Pioneer F700 Navigation / Video System, 2 12" alpine type R subs, and Two dollars worth of 91 octane california gas.

04-25-2008, 03:53 AM	#9 (permalink)
rice eater tC Freak Join Date: Mar 2008 Location: Fort Huachuca, AZ Posts: 334	OH yeah, your car cant be that old, take that beast back to the dealer and say HEY! where the eff is my warranty service. or something of the sort. __________________ Race Inspired Cosmetic Enhancements. Rice. TRD Supercharger, NST 65mm Overdrive Pulley, MMW 4-2-1 Header / S pipe , Catback Exhaust, TRD struts, TRD springs, TRD front strut tie bar, TRD rear sway bar, DME engine torque damper, Viper 791XVR remote start system, Pioneer F700 Navigation / Video System, 2 12" alpine type R subs, and Two dollars worth of 91 octane california gas.

04-23-2008, 10:15 PM	#1 (permalink)
tC_Crazy Scion Guru Join Date: Jul 2006 Posts: 105	Well, I'm having trouble with the tire pressure monitor. The light keeps coming on, even after I reset the system (glovebox button) with cold tires. It will stay off for a couple days, but within 72 hours it always returns. I gave up on turning it off, so it just sits on my dash all the time. Pressure is 40psi all around so there's definitely no way the tires are low. Does anyone have suggestions before I waste a few hours at the dealership? I'm not sure this is the cause, but I seem to have noticed it twice after using cruise control. Could just be a coincidence though.

04-23-2008, 10:37 PM	#2 (permalink)
bflythe Newbie Join Date: Apr 2008 Location: Roxboro, NC Posts: 9	It may be a computer problem. You may need to take it to a mechanic and see if the computer itself needs to be reset

04-23-2008, 11:27 PM	#5 (permalink)
Dr. Isotope Pick your own - you deserve it. Join Date: Mar 2005 Location: SoCal, USA!! Posts: 4,296	Are you resetting the system, or just pushing the button whenever the light comes on? To reset the system: --Turn the ignition switch to the ON position. If the low tire pressure warning light comes on, push and hold the tire pressure warning reset switch (in the glove box) until the warning light turns off and then release the switch. --Now press and hold the tire pressure warning reset switch until the low tire pressure warning light blinks three times. Note: initialization is not completed until driving at a speed of 19 mph or over for more than one hour. The tire pressure monitoring starts when initialization is completed.

04-25-2008, 06:13 AM	#10 (permalink)
SquallLHeart LED Maniac Join Date: Sep 2005 Posts: 2,957	uhh yea....... that's a great way to get any work done to your car.... "hmm.. we may need you to leave it overnight for us to really diagnose the problem" you drive off... (few hours later...) work done and completed technicians take it on a "test" drive "weeeeee!" __________________ your "friendly" ystc OG 2011 tC Light Runner project in progress *There's "STRONG", and then there's "RETARD* STRONG".**

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