# Low air pressure light **URL:** \ **Category:** General Discussion\ **Created:** [September 20, 2024, 4:48pm UTC](https://community.cartalk.com/t/low-air-pressure-light/196341 "2024-09-20T16:48:43Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![SteveCBT](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/stevecbt/32/3192_2.png) [@SteveCBT](https://community.cartalk.com/u/SteveCBT)\ **Post date:** [September 20, 2024, 4:48pm UTC](https://community.cartalk.com/t/low-air-pressure-light/196341/1 "2024-09-20T16:48:43Z")
2019 Dodge Caravan 70,000 miles. My low air pressure warning light has come on. I have pumped all the tires up to 36 psi per the sticker on the door (within 1/2 pound) I have had many start cycles and the light stays on… Is there anything I can do for more checks or reset? Or do I need to take it to a shop with the right scanner to check the sensors and replace if needed? ---
**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\ **Post date:** [September 20, 2024, 5:27pm UTC](https://community.cartalk.com/t/low-air-pressure-light/196341/2 "2024-09-20T17:27:49Z")
Kind of early for the batteries to wear out, generally last 6-10 years. You have several choices: Ignore the light and continue to check pressures, wait until you need new tires. Have a tire store check the monitors, then replace as necessary. If this would fail your state vehicle inspection, then you need to get it corrected before your next inspection. ---
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [September 20, 2024, 5:49pm UTC](https://community.cartalk.com/t/low-air-pressure-light/196341/3 "2024-09-20T17:49:29Z")
If the warning light is flashing for one minute after start-up, this indicates a fault has been detected by the tire pressure monitor: usually no signal detected by one or more transmitters. Time to replace the tire pressure sensors. > [@Purebred](#): > > Kind of early for the batteries to wear out, generally last 6-10 years. This vehicle is 6 years old. ---
**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\ **Post date:** [September 20, 2024, 5:51pm UTC](https://community.cartalk.com/t/low-air-pressure-light/196341/4 "2024-09-20T17:51:08Z")
My cars all have individual tire read outs. When a sensor fails it just displays dashes for that tire. I think a shop can determine which tire if any or if it is the receiver that is not receiving the signal. Like I said I had one car that would fail to read the tpms when passengers were in the back seat. The receiver was in the trunk and somehow the signal was blocked. Don’t know how you figure this out without professional help. ---
**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\ **Post date:** [September 20, 2024, 6:07pm UTC](https://community.cartalk.com/t/low-air-pressure-light/196341/5 "2024-09-20T18:07:54Z")
I proactively replaced my still functioning units at 11 years old. ---
**Author:** ![davesmopar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/davesmopar/32/41750_2.png) [@davesmopar](https://community.cartalk.com/u/davesmopar)\ **Post date:** [September 20, 2024, 11:23pm UTC](https://community.cartalk.com/t/low-air-pressure-light/196341/6 "2024-09-20T23:23:52Z")
I agree, take it to a shop and have the sensors checked out… Basically if they try to do a TPMS reset it will either turn off the light or show a failed sensor, at that time you can decide if you want to old school it and check and drive, then go for it, just remember it will not tell you if a tire is loosing air while driving, or make the decision to replace it and have a working TPMS system… ---
**Author:** ![Rainflurry](https://avatars.discourse-cdn.com/v4/letter/r/cab0a1/32.png) [@Rainflurry](https://community.cartalk.com/u/Rainflurry)\ **Post date:** [September 21, 2024, 12:00am UTC](https://community.cartalk.com/t/low-air-pressure-light/196341/7 "2024-09-21T00:00:54Z")
Did you check the pressure in the spare tire? The TPMS light came on in my wife’s Volvo a few weeks back because the spare was low. Not sure if the spare in a 2019 GC has a TPMS sensor. Also, from your owner’s manual: ![GC Tire2](https://global.discourse-cdn.com/cartalk/original/3X/6/9/695701671c4f9cc78f60cdab1a57437a567b1ea7.jpeg) ---
**Author:** ![SteveCBT](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/stevecbt/32/3192_2.png) [@SteveCBT](https://community.cartalk.com/u/SteveCBT)\ **Post date:** [September 21, 2024, 1:28am UTC](https://community.cartalk.com/t/low-air-pressure-light/196341/8 "2024-09-21T01:28:31Z")
Tires were checked and filled cold, no spare tire, light does not flash just on solid. Off to my local independent shop ---
**Author:** ![SteveCBT](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/stevecbt/32/3192_2.png) [@SteveCBT](https://community.cartalk.com/u/SteveCBT)\ **Post date:** [October 5, 2024, 5:29pm UTC](https://community.cartalk.com/t/low-air-pressure-light/196341/9 "2024-10-05T17:29:56Z")
My shop checked and fixed the problem, my gage was bad, reading 6 psi low. It was a decent but old dial type. I got a new gage. Once the pressures were up to normal the light went out