Q: Faulty low air pressure sensor.

asked by on January 11, 2016

My low air pressure sensor is on, even though the tire pressure is okay.

Uneven tire wear Inspection $79.99 - $99.99 Get a Quote

The tire pressure monitoring system will only trigger a warning light for three reasons including a low tire pressure. The other two reasons are if the computer does not detect a signal from a sensor due to it being missing or if a sensor has a low battery. Assuming that all of your sensors are still present the most likely cause is a low battery in one of the sensors. Unfortunately, these batteries are not replaceable and the whole sensor must be replaced to correct the issue. I would recommend taking your vehicle to a place that services tires as these sensors can be very difficult to replace without a tire mounting machine. I would not attempt to replace a sensor on your own. Have a mechanic inspect the problem before you have the sensor replaced to make sure that you are not replacing anything unnecessary.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $65/hr

What others are asking

No heat when ideling or driving slow.

The lack of heat being generated by your system may indicate a clogged heater core. The [heater core]((https://www.yourmechanic.com/services/heater-is-not-working-inspection) is a small radiator like unit that circulates the hot coolant from the engine through the heater core which then uses this...

Getting codes P0161 and P0325

Hello. Both codes indicate a circuit failure, and I suspect that the connectors were not properly reconnected after changing the valve cover gasket. These codes are not likely actual part failures. It is a very tight squeeze to get in...

2011 Mini Cooper Countryman jerks to the left upon deceleration

Hi. We will be happy to assist you with your 2011 Mini Cooper Countryman. The issue you are describing could result from a few possible things. It may be a faulty electronic steering control module causing the jerk. The steering...

What causes a jerk when accelerating forward?

There are a few things that may cause this situation. A broken engine mount may cause a jerk or clunk noise when the throttle is applied and sometimes you will feel a second clunk when the throttle is released. The...

A/c check engine light on

If there is antifreeze inside the passenger compartment a hose to the heater core and/or the heater core itself has developed a leak. If the antifreeze has instead sprayed into the underhood area, the leak would be in the engine...

Emergency flasher won't work in 2008 Nissan 350Z

It seems that your Nissan may have an issue with the emergency flasher switch or perhaps the flasher relay itself. This is definitely both an electrical issue and safety issue that needs to be resolved as soon as possible. As...

Can I wait to get my oil changed?

Today's vehicles are generally capable of going between 5,000-10,000 miles between oil changes. I would recommend basing your oil change intervals on mileage rather than months due to fluctuation in mileage driven. You should be fine waiting until December to...

Air conditioning blows hot air

Hello. If the AC will not blow cold air, then it may indeed be low on refrigerant. Most AC systems will not allow you to simply add refrigerant without jumping the compressor to get it to turn on. If the...

Brake stuck.

From what I am reading, your vehicle seems to be experiencing a serious problem. From my years working with these vehicles, it could very well be that the brake caliper has seized in that stuck wheel. Often the brake caliper...

Related articles

How Does My Car Monitor Tire Pressure?
You’re You’re driving home from work and your steering wheel begins to pull. It gradually gets worse, then you hear a thump-thump-thump noise. You stop on the side of the highway to investigate, only to find you’ve got a flat...
Top 10 Tire Safety Issues Every Car Owner Needs to Know
Car tires are vulnerable to punctures, flats, and other failures. If you see underinflation, overinflation, or uneven tire wear, get it it inspected.
Top 10 Tire Safety Issues Every Car Owner Needs to Know
Car tires are vulnerable to punctures, flats, and other failures. If you see underinflation, overinflation, or uneven tire wear, get it it inspected.