My display reads perform service how do i go about performing service on it

U110C-NO FUEL LEVEL BUS MESSAGE
When Monitored and Set Condition:
U110C-NO FUEL LEVEL BUS MESSAGE
When Monitored: Ignition on.
Set Condition: No fuel level BUS messages received by the PCM for 20 seconds.
POSSIBLE CAUSES
DTC RESET
COMMUNICATE WITH BCM
FUEL LEVEL BUS MESSAGE
PCI BUS CIRCUIT OPEN FROM PCM TO BCM
BCM
TEST ACTION APPLICABILITY
1 NOTE: If a fuel level circuit or performance DTC is set along with P1681,
diagnose the circuit/performance DTC before continuing.
Turn the ignition on.
With the DRBIIIt, erase DTCs.
Start the engine on and off several times. Leave the engine running for at least 20
second each time.
With the DRBIIIt, read DTCs.
Does the DTC reset?
All
Yes ! Go To 2
No ! Refer to the INTERMITTENT CONDITION symptom in the
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER - 1 - NGC.
2 Ignition on, engine not running.
With the DRBIIIt, attempt to communicate with the BCM.
Can communication be established with the BCM?
All
Yes ! Go To 3
No ! Refer to the Communication Category and perform the appropriate
symptom related to no communication with BCM.
Perform POWERTRAIN VERIFICATION TEST VER - 1 - NGC.
3 Turn the ignition on.
Using the DRBIIIt, read the Fuel Level parameter in the PCM.
Does the DRBIIIt display a fuel level value?
All
Yes ! Replace and program the Powertrain Control Module in accordance
with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 1 - NGC.
No ! Go To 4
287
DRIVEABILITY - NGC
TEST ACTION APPLICABILITY
4 Turn the ignition off.
Disconnect the PCM harness connectors.
Disconnect the BCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMINALS
RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the PCI Bus circuit from the BCM harness connector to the
appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
All
Yes ! Replace BCM in accordance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 1 - NGC.
No ! Repair the PCI Bus circuit between the PCM and the BCM for an
open.
Perform POWERTRAIN VERIFICATION TEST VER - 1 - NGC
__________________

Hello
When the service engine soon light (Also called the check engine light or engine management light) is turned on this is to alert you to the fact that Powertrain Control Module (computer) has detected a failure somewhere in the systems it controls you may not feel any difference in the way the engine runs, this can be the transmission or the engine or emission system, there are fault codes set in the modules memory for these faults. What needs to happen now is to have the powertrain control module scanned with a special tool called an OBD2 electronic engine control scanner or a OBD2 code reader. Once the code(s) are read then you must perform the diagnostics for each code and make the appropriate repairs based on the findings of the diagnosis that was performed, this is called doing "Pinpoint" testing.

The perform service message tells you when you need to change oil. To reset it turn the key on and press the step button until miles to service is displayed (it should say 0 underneath). Then press and hold the reset button until it changes from 0 to 3,000 miles. Then start the vehicle. The message should no longer be displayed.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

It means you need to perform diagnostics scan on your car to read error codes ,to determine what the service light has detected.

If it is only "perform service", this is likely your mileage counter telling you to get an oil change. If it was a "check engine light" it would be amber in color and would require use of a scanner to acquire codes and check for faults. Here's how to reset:
On a 1997 Jeep Grand Cherokee Laredo if the "Perform Service" light is in the middle of the dash Simply press the "SET" button until the display shows the "0 miles to service", Then hold the other button below it down until it resets to "3000".

performance service relates to air intake filter/plugs/leads(petrol).basically anything that dont move but has a bearing on performance.

Take it back to the mechanic and have him turn it off or finish repairing it.

Actually the newer cherokees are a little more complicated, it's not a reminder for an oil change. It is for an emssions service that should be performed according to the dealer. Here is the rest procedure

Turn ignition to on position, but do not start.
Depress brake pedal fully twice.
depress excellerator very slowly twice
Turn ignition off & that will reset the perform service indicator.
I am mechanic & we are getting frustrated because the dealers do not want to release this info to anyone, they want your money! Can you believe if you did not get them to perform the service they charge you a 1 hour shop rate??

To reset the perform service message , is as follows , turn ignition switch to the ON position , depress and release MENU push button until SERVICE INTV . = is displayed , press and release STEP button to step through available options. the last selected distance option displayed becomes the service interval at which the PERFORM SERVICE message will be displayed . if a new distance interval is selected , RESET SERVICE DISTANCE ? with a yes or no option. when yes is selected the accumulated distance since the last previous PERFORM SERVICE message will be set to zero because the service interval has been changed . when NO is selected , the distance until the next PERFORM SERVICE message is reduced by the accumulated distance since the last previous message . EVIC exits programming mode and returns to its normal operation mode when the C/T button is depressed or when the end of the programmable feature menu list is reached , whichever comes first .

Thanks for asking .

It is the perform service indicator that is telling you it is time for service.
If you do not want to have car serviced right now, just just hit the reset button. You can also go thru the menu and set the mileage you want the Perform Service warning to come on.