The tire pressure monitoring system (TPMS) alerts drivers if the tire pressure drops by more than 25% below the recommended level. The pressure light serves as a medium for conveying this data to the driver. Direct and indirect TPMS are the two main forms of TPMS.
The anti-lock braking system is used to implement an indirect TPMS (ABS). It estimates the diameter of the tires based on the rate at which they turn. When a tire spins faster than suggested, it quickly sends out a warning to the driver.
Sensors installed at each tire assembly help with direct TPMS. When the tire’s air pressure is out of whack, they send a signal to the car’s computer system.
So, why tire pressure light is on after changing tires?
It is possible that the pressure monitoring device itself is faulty if your tires have been replaced and the pressure won’t drop. This vehicle’s tires each have their own sensor that connects with the vehicle’s main computer. The TPMS light may come on if one tire is low or a sensor is not communicating properly with the vehicle’s main computer. Some systems may need to be reset after changing tires, and this could be the problem.
It’s also possible that your mechanic installed an aftermarket tire pressure sensor that isn’t able to communicate with your vehicle’s computer. This could happen if the sensor was broken during the tire swap.
You should get the automobile checked out to find out which sensor is faulty. ‘ A sensor replacement may be necessary if this is the problem. Keep in mind that the TPMS should be reset before considering faulty sensors.
Causes Of TPMS On After You Have Installed A New Set Of Tires
The Tire Pressure Sensor Could Be Malfunctioning
After about 8-10 years, the tire pressure sensors should be replaced. If your vehicle is more than 10 years old, you should have the sensors checked. Both normal wear and tear and the battery’s depletion could be to blame.
The presence of anything other than air and nitrogen in the tire could also be a contributing factor. It’s best to avoid using patches to fix sealants on tires with tire pressure sensors if you want to keep them from ever needing replacement.
Change In Temperatures
In comparison to cold air, warm air occupies more tire space. The tire pressure will rise after a few hours of driving if you measure it on a cool morning and then drive.
As the tire spins, the air in it warms up, too. The tire’s pressure will rise as the air warms up. Tire pressure decreases as the temperature drops.
You’ll be filling up your tires on a hot afternoon just to have the temperature shift and you’ll wind up with lower pressure even if the tires and sensors are working well. Tire pressure typically drops by 1 psi for every 10 degrees of temperature decrease.
You Might Have Changes Or Rotated The Tires Recently
Tires are swapped out for fresh ones and rotated. If you buy new tires that don’t come with TPMS sensors, your car may need to be re-calibrated to accommodate the new changes.
Slow driving for a few minutes can reset some autos, while others require the services of a mechanic. A copy of the manual can be found at your local library.
The Spare Tire Might Have Low Pressure
Make sure that the air pressure in the spare tire you use to repair a puncture is correct. Because spare tires rarely contain sensors, the only choice is to keep them properly inflated.
Is It Normal For Tire Pressure Light To Come On After Getting New Tires?
After changing the tires, you don’t anticipate the tire pressure light to come on, but it’s not a big concern. This can happen for a variety of reasons.
Do You Need To Reset TPMS After Adding New Tires?
After changing or rotating your tires, you must reset your TPMS. Even after you’ve added air, some manufacturers advocate resetting the device. Retraining the system to detect the new sensors or their new placement is all that is required.
How to reset the TPMS after changing the wheels
To some degree, this approach is arbitrary, although it involves a number of steps such as altering the dashboard’s settings, using a reset tool, and so on. The following methods are available to you.
If the problem persists, take the drive to a service center for assistance.
How Much Does It Cost To Replace TPMS?
Tire pressure sensors can be replaced for as little as $6 and as much as $260, depending on the brand and model.
Can The TPMS Sensor Be Installed On A New Set Of Wheels?
You may not need to buy new sensors if you replace all of your tires at once.
Bottom line
When the tire pressure light comes on, it usually means that the tire pressure is too low. One tire or several tires could be involved. Many car accidents have been avoided thanks to TPMS. Not all lights are serious, but they should not be ignored.
