New Z Owners - Check your tire pressure

LenZToy · 03-14-2009, 04:15 PM

I lowered the tire pressure to 35 on all tires, went for a drive to reset the warning light, but it's still on. I drove about 5 miles, stopped and cut off the engine. When I started up the car, the warning light blinks for about a minute then stays on...just what the manual says if there is a problem with the system or sensor. Guess it'll be a trip to the dealership.

Anyone else having a problem with the warning light staying on?

chibbell · 04-07-2009, 05:56 PM

Quote:

Originally Posted by LenZToy

I lowered the tire pressure to 35 on all tires, went for a drive to reset the warning light, but it's still on. I drove about 5 miles, stopped and cut off the engine. When I started up the car, the warning light blinks for about a minute then stays on...just what the manual says if there is a problem with the system or sensor. Guess it'll be a trip to the dealership.

Anyone else having a problem with the warning light staying on?

The light came on for me on the way to work yesterday. Stopped and checked pressure on warmed up tires. All at 42. When I left work the light was off. Got back in later and it came off again.

Going to check pressure when cold and set to 35. If the light stays on I guess its to the dealer for me too.

LenZ - did you have to go into the dealer? Any word on what was up?

ChrisSlicks · 04-08-2009, 10:12 AM

Quote:

Originally Posted by chibbell

The light came on for me on the way to work yesterday. Stopped and checked pressure on warmed up tires. All at 42. When I left work the light was off. Got back in later and it came off again.

Going to check pressure when cold and set to 35. If the light stays on I guess its to the dealer for me too.

LenZ - did you have to go into the dealer? Any word on what was up?

Your cold pressures were probably at around 39/40 which isn't enough to throw the alarm, as you drove and warmed up the tires the pressure climbed to 42 which set off the alarm. Sitting parked they cooled back down again and the pressure dropped below the threshold again. Just drop the cold pressure to 35 and you should be fine.

chibbell · 04-08-2009, 01:35 PM

Quote:

Originally Posted by ChrisSlicks

Your cold pressures were probably at around 39/40 which isn't enough to throw the alarm, as you drove and warmed up the tires the pressure climbed to 42 which set off the alarm. Sitting parked they cooled back down again and the pressure dropped below the threshold again. Just drop the cold pressure to 35 and you should be fine.

That's what I'm hoping for. I meant to bleed off the extra pounds last night but forgot. I did start her up this morning. Alas, completely cold, the light was flashing. It could be just because it hasn't reset yet.

I'll definitely drop the pressure when I get home from work and take it from there. Hopefully a few miles of driving will reset it.

Does anyone know if the TPMS monitors the spare?

SoCal 370Z · 04-08-2009, 01:40 PM

Quote:

Originally Posted by chibbell

Does anyone know if the TPMS monitors the spare?

No. There is no TPMS sensor in the spare.

chibbell · 04-08-2009, 03:05 PM

Quote:

Originally Posted by SoCal 370Z

No. There is no TPMS sensor in the spare.

Thanks again for the info. I assumed not, but it was worth checking.

NeedforZ · 04-08-2009, 09:20 PM

Finally got around to checking mine. 45psi all around. Will probably drop it to 40.

texmedic · 07-08-2009, 10:23 AM

Hey not to bring such an old thread but I got a low pressure light a couple weeks after getting the car and after researching I read that a lot of 350 guys [350 forum] had switched to nitrogen and the problem cleared up. I went to the dealer and it cost me 23$ for life time nitrogen which was reasonable, but a couple of days ago I got another low pressure light. Although I havent had a chance to check the pressure in the last 2 days yet, I was curious if anyone else has the recurrent light issue?

Modshack · 07-08-2009, 11:26 AM

Quote:

Originally Posted by texmedic

Hey not to bring such an old thread but I got a low pressure light a couple weeks after getting the car and after researching I read that a lot of 350 guys [350 forum] had switched to nitrogen and the problem cleared up. I went to the dealer and it cost me 23$ for life time nitrogen which was reasonable, but a couple of days ago I got another low pressure light. Although I havent had a chance to check the pressure in the last 2 days yet, I was curious if anyone else has the recurrent light issue?

Ummmmm...Did you ever think you might have a leak? Nitrogen is not a cure for anything. Look for a Nail...You've got one in the tire somewhere..

texmedic · 07-08-2009, 11:41 AM

I checked for nails when i switched to the nitrogen, but not since the new light coming on. thats a good call though!

LenZToy · 04-08-2009, 08:50 PM

Quote:

Originally Posted by chibbell

The light came on for me on the way to work yesterday. Stopped and checked pressure on warmed up tires. All at 42. When I left work the light was off. Got back in later and it came off again.

Going to check pressure when cold and set to 35. If the light stays on I guess its to the dealer for me too.

LenZ - did you have to go into the dealer? Any word on what was up?

I haven't been to the dealer yet. Waiting for the first oil change. I know what the tire pressures are so I'm guessing the TPMS malfuntion is somehow related to when the wheels were moutned or something. Biggest concern is when the service department removes the wheels to check the system and some young kid scratches it either taking the lugs off or putting them on!

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03-14-2009, 04:15 PM	#1 (permalink)
LenZToy Base Member Join Date: Jan 2009 Location: Mechanicsville, Va. Posts: 143 Drives: 2013 370Z Black 6SP Rep Power: 270	I lowered the tire pressure to 35 on all tires, went for a drive to reset the warning light, but it's still on. I drove about 5 miles, stopped and cut off the engine. When I started up the car, the warning light blinks for about a minute then stays on...just what the manual says if there is a problem with the system or sensor. Guess it'll be a trip to the dealership. Anyone else having a problem with the warning light staying on?

04-08-2009, 09:20 PM	#7 (permalink)
NeedforZ Base Member Join Date: Mar 2009 Location: DFW Texas Posts: 163 Drives: 370z Touring 7AT Rep Power: 18	Finally got around to checking mine. 45psi all around. Will probably drop it to 40.

07-08-2009, 10:23 AM	#8 (permalink)
texmedic Base Member Join Date: Jun 2009 Location: Austin Texas Posts: 192 Drives: 09 370Z Rep Power: 18	Hey not to bring such an old thread but I got a low pressure light a couple weeks after getting the car and after researching I read that a lot of 350 guys [350 forum] had switched to nitrogen and the problem cleared up. I went to the dealer and it cost me 23$ for life time nitrogen which was reasonable, but a couple of days ago I got another low pressure light. Although I havent had a chance to check the pressure in the last 2 days yet, I was curious if anyone else has the recurrent light issue?

07-08-2009, 11:41 AM	#10 (permalink)
texmedic Base Member Join Date: Jun 2009 Location: Austin Texas Posts: 192 Drives: 09 370Z Rep Power: 18	I checked for nails when i switched to the nitrogen, but not since the new light coming on. thats a good call though!