“Service Tire Pressure System” is a warning message that shows up on your Jeep dashboard along with the tire pressure light. Jeeps come with this safety feature called tire pressure monitoring system (TPMS).
This feature lets you know when there is something wrong with the tires of the jeep to take immediate action. So without wasting time, let’s figure out what this system warning means along with the reasons for its appearance.
What Does the “Service Tire Pressure System” Jeep Warning Mean?
The service tire pressure system in your jeep refers to a system in which there are TPS sensors, located in each of the tires.
There is a TPS module that sends the signals needed for the warning when there is an issue.
Lastly, the tire pressure indicator light is on the dashboard which illuminates and signals the issue.
This system is a vehicle’s safety feature that monitors the air amount and pressure inside the tires.
If the system detects a lack of pressure in the tire, the system sends a warning signal and message to the dashboard. The same happens when the tire is not adequately inflated for safe driving.
How Does the Tire Pressure Monitor System Work in Jeep?
The sensors in the TPMS can measure the required internal pressure in each tire.
The proper and wrong psi for each tire is already set up inside the sensor so it can recognize both.
Whenever the pressure drops below the threshold, the service tire pressure light is illuminated.
Inflating your tires should be the first course of action when you detect the system warning you.
While driving, the presence of this message means you should pull over to a gas station. Then get the air pumped inside all four of your tires for the best solution.
5 Possible Causes of Tire Pressure System Warning Light On
Now that we know which component triggers this warning message, let’s take a look at the possible issues that show up in a TPMS.
1. Failure of the Tire Pressure Sensor
The most likely cause is the sensors in charge of the system going bad. These sensors usually monitor the pressure of the tire and send signals when the pressure drops.
Dead batteries or driving too roughly can damage these sensors.
Most of the time, one or more damaged sensors are the reason for the service tire pressure message popping up. It shows up when the sensor fails to do its job.
2. Low Tire Pressure
When one of the four tires of your jeep has less amount of air than usual, the TPMS alerts you.
This signals that you need to fill up the tire with air soon to inflate it again. Lack of air also leads to less tire pressure.
So, measure the tire pressure in the jeep when the warning comes on in order to check if the tire pressure is alright.
3. Dead Sensor Battery
Each of the TPMS sensors need a 3V lithium ion battery constantly. Some of the sensors might also use a 1.250-volt nickel metal hydride battery.. These batteries usually have a lifetime of 5 years.
So, after constant use, the batteries keep getting drained. A low voltage or dead battery won’t be able to run the sensors.
As a result, there will be a service tire pressure system alert. Since the sensor batteries are fixed, you’ll need to change the whole TPMS sensor.
4. Faulty TPMS Module
The TPMS module is the heart of the entire system. This module is the receiver of signals sent from the TPS sensor.
It processes the information and forwards the signal to the car computer. When the TPS module fails, the resulting error message is also Service tire pressure system.
However, it is very rare for the TPS module of a jeep to fail. But if you have checked the other components and even replaced the sensor, then the module is likely faulty.
5. Blown Fuse
There is a fuse inside the TPS module to protect the electrical system from other current flow.
When a current more than the maximum tolerance passes through the fuse, it blows.
So, the TPS module can’t work properly. Therefore, the service TPMS light comes on as a warning.
How to Reset the “Service Tire Pressure System” on a Jeep?
Changing your faulty tire or inflating it might be enough in order to reset the service tire pressure system warning on your jeep.
If it still persists on your dashboard, you can manually reset the message. Check out the jeep’s manual for the proper instructions on how to reset this. You can follow these steps to reset the system:
- At 50 mph, drive your jeep for ten minutes and turn it off. The next time you start the engine, the TPMS sensor should be reset automatically.
- Turn the ignition switch to the ON position first.
- Press and hold down the TPS sensor reset button. You will find it under the steering wheel.
- The tire pressure light will start blinking. Wait for it to blink three times and then release the button.
- Drive the jeep once again for 20 minutes this time in order to complete the resetting process.
What to Do When the Service Tire Pressure System Light Comes On?
The first course of action upon noticing service tire pressure lights is to pull over to a safe place.
Next, check out the air pressure in the tires and then proceed to do the following steps:
- Consult a TPMS programmer to know if the sensor needs to be reprogrammed.
- All of the tires on your jeep should be inflated but 3 psi more than the recommended value. The next step is to deflate them all entirely.
- Inflate the tires once again but this time, only go up to the recommended psi.
- Check the TPS battery voltages. If they are too low or dead, replace the entire sensor.
- Look out for blown fuse, damaged TPS module and replace them if necessary.
Let’s take a look at some more information regarding the service tire pressure system on jeep. This will come in handy when you face situations such as this.
How much does a TPMS Sensor cost to replace?
A TPMS sensor will cost you around $50-$100 to replace. This cost range has the labor cost included. In case you need to replace the tires along with the sensor, the cost will increase noticeably.
Can I drive with my TPMS light on?
No, it is not safe to drive with your TPMS light on. You would have no idea how much air is in the tire. The tire could be too deflated for the jeep to handle and cause dangerous accidents.
How to test a service tire monitor sensor battery?
You can test a service tire monitor sensor battery with the help of a scan tool. Scan the TPMS scan tool along the tire and it will let you know the battery percentage.
How long does it take for the TPMS light to go off?
When the tires are inflated with the correct pressure and air, the TPMS light goes off after driving a few miles. Drive for around 20 minutes and wait for the light to go off.
The correct inflation of the tires is necessary in order to attain a safe driving experience.
While driving, the right air pressure in the tire is vital to turn corners and make clean brakes.
So, properly maintaining the service tire pressure system of your jeep is absolutely essential.