If you are getting the “service tire pressure system” on your Jeep, then you are at the right place!
I have worked on Jeeps with a similar problem and in this article, I am going share the main causes from my experience and how to solve the issue and reset the fault message on your dash.
What Does Service Tire Pressure System Mean on a Jeep?
“Service tire pressure system” simply means your Jeep is telling you that there is a problem with the Tire Pressure Monitoring System.
What is a Jeep Tire Pressure System
This system is built into your Jeep to help you keep an eye on your tire pressure and avoid getting stuck out in the middle of nowhere due to a flat tire.
The TPMS consists of tire pressure sensors (TPS) that are installed in each wheel, a TPMS module that is responsible for sending out tire pressure warnings, and a dashboard indicator light that lets you know if your tires are low on air.
The system is designed to prevent you from driving with under-inflated tires, if one of the components above goes bad, a service tire pressure system will appear.
Now let’s look at the common causes of the Jeep service tire pressure system warning main causes.
Jeep “Service Tire Pressure System Causes”
From my experience with Jeeps, there are a few things that can trigger the fault message but here are the most common causes:
1. Tire Pressure Sensor Failure
The most common cause is one or more of the tire pressure sensors going bad.
This is usually due to age and exposure to the elements and is often a result of driving on potholed streets or under heavy load conditions (such as when pulling a trailer). The sensors can also fail if the battery in them goes bad.
Tire pressure sensors are small electronic devices that monitor the pressure in each tire, sending a signal to the car’s computer when they detect a drop.
If one/more tire pressure sensors fail then the “Service Tire Pressure System” message on your dashboard will come on.
From my experience 90% of the time this is caused by a bad sensor, not a problem with the tire pressure monitoring system itself.
2. Bad TPMS Module
The Tire pressure system module is responsible for receiving the tire pressure information from each sensor, processing it, and sending it to your car’s computer.
If this module fails then you will get a “Service Tire Pressure System” message on your dashboard.
The module itself rarely fails on jeeps but it does happen, if you replaced the sensors and still get the fault message then the TPMS module is likely malfunctioning.
3. Low Tire Pressure
Sometimes when one of your Jeep tires is underinflated, it can cause the TPMS to activate. The system is designed to alert you when your tires are low on air so that you can stop and fill them up.
If you’re not getting a “Service Tire Pressure System” message then check your tire pressure before assuming there is an issue with your Jeep’s TPMS system.
4. Blown Fuse
Again this rarely happens but fuses do occasionally blow. The TPMS module uses a fuse to protect the system from getting damaged by other electrical components in your jeep. If it blows, then the system will not activate and you won’t get any error messages on your cluster display.
5. Low Battery Voltage/Bad Battery
The Battery in your jeep controls a lot of electronics. If the voltage is low or the battery is bad then it can cause some issues with your TPMS system. The TPMS module requires a minimum of 12 volts to operate correctly so if your battery is low, then this could cause an issue.
Another thing could be a bad battery itself, batteries do deteriorate over time and if yours is old then it may not be able to keep up with the demands of your Jeep’s electronics.
How to Reset the “Service Tire Pressure System” on a Jeep
Here are a few things you should do in order to fix and reset the message.
- Replace Tire Pressure Sensors: Fortunately, these are relatively inexpensive and easy to do, like I mentioned above 90% of the time this will solve the problem.
- Check the Battery Voltage: If replacing the TPS doesn’t solve the issue, then I recommend that you check the condition and voltage of your battery.
- Check the TPMS module and Fuse: If the battery is good, then I recommend that you check for a TPMS fuse and see if it’s blown. If it is, then replace it and see if that helps.