Turn the key and it says Perform Service on the overhead center

Programming Theft Deterrent System Components
Important: When replacing a body control module (BCM) with an GM Service Parts Operation (SPO) Replacement Part, set up the replacement BCM prior to the 10-minute relearn procedure or the 30-minute relearn procedure. Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System.
Important:
• When replacing a BCM with an GM SPO Replacement Part, the module will learn the keys immediately. The existing powertrain control module (PCM) must learn the new fuel continue password when you replace the BCM.
• When replacing a PCM with a GM SPO Replacement Part, the new PCM will learn the incoming fuel enable password immediately after programming and upon receipt of a password message. A PCM which had been installed in another vehicle would have learned the fuel enable password of the other vehicle's BCM. Perform either the 10-minute relearn procedure or the 30-minute relearn procedure to learn the fuel enable password of the current vehicle's BCM.
• When performing either relearn procedure, all previously learned keys will be erased from the BCM memory.
• Additional keys may be learned. Refer to Adding Keys .
Tools Required
• Scan tool
• Techline Terminal with current Service Programing System (SPS) software
10-Minute Relearn Procedure
Use this procedure after replacing the following components:
• The passkey III (PK3) keys
• The BCM
• The PCM, see Important above
Important: If replacing a BCM with a GM SPO Replacement Part, perform the procedure to setup a new BCM prior to the 10-minute relearn procedure. Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System.
Connect a scan tool to the vehicle.
Turn ON the ignition, with the engine OFF.
Insure that all power consuming devices are turned OFF on the vehicle.
With a scan tool, select Request Info. under Service Programming System and follow the scan tool on-screen instructions.
Disconnect the scan tool from the vehicle and connect the scan tool to a Techline Terminal with the current Service Programming System (SPS) software.
On the Techline Terminal, select Service Programming System and follow the Techline Terminal on-screen instructions.
Disconnect the scan tool from the Techline Terminal and re-connect the scan tool to the vehicle.
With a master passkey III key, turn ON the ignition with the engine OFF.
With a scan tool, select Program ECU under Service Programming System.
At this point the scan tool must remain connected for the duration of the 10-minute relearn procedure.
Observe the scan tool, after approximately 10 minutes the scan tool will display "Programming Successful, Turn OFF Ignition". The vehicle is now ready to relearn the key information and/or the passwords on the next ignition switch transition from OFF to ON.
Turn OFF the ignition and wait 5 seconds.
With a master Passkey III key, start the vehicle. The BCM has now learned the key transponder information and the PCM has now learned the fuel continue password.
Important: Perform this step ONLY on vehicles with EXPORT configured BCM's.
Turn OFF the ignition and wait 15 seconds minimum.
Important: Perform this step ONLY on vehicles with EXPORT configured BCM's.
With a second master passkey III key, start the vehicle. The BCM has now learned the second master Passkey III key transponder information
With a scan tool, clear any DTCs.
30-Minute Relearn Procedure
Use this procedure after replacing the following components:
• The passkey III (PK3) keys
• The BCM
• The PCM, see important above
Important: This procedure is not available on vehicles equipped with option code (Z49).
If replacing a BCM with an GM SPO Replacement Part, perform the procedure to setup a new BCM prior to the 30-minute relearn procedure.
With a master passkey III key, turn ON the ignition, with the engine OFF.
Observe the STARTING DISABLED DUE TO THEFT message on the drivers information center (DIC), after approximately 10 minutes the STARTING DISABLED DUE TO THEFT message on the DIC will turn off.
Turn OFF the ignition, and wait 5 seconds.
Repeat steps 1-3 two more times for a total of 3 cycles or 30 minutes.
Important: The vehicle learns the key transponder information and/or passwords on the ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.
With a master passkey III key, start the vehicle. The vehicle has now learned the key transponder information and the PCM has now learned the fuel continue password.

If you press and hold (at least 3 seconds) the button (overhead) that you use to change what is displayed overhead it should reset the perform service reminder.

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

Diagnostic check from Jeep dealership will access issue.

Intervention Regeneration Strategy - EVIC
Message Process Flow (Catalyst Full Message)
(6.7L Diesel Engines Only)

Your new Cummins 6.7L diesel meets all EPA Heavy
Duty Diesel Engine Emissions Standards, resulting in the
lowest emitting diesel engine ever produced.
To achieve these emission standards your vehicle is
equipped with state of the art engine and exhaust system.
The engine and exhaust aftertreatment system work
together to achieve the EPA Heavy Duty Diesel Engine
Emissions Standards. These systems are seamlessly integrated
into your vehicle and managed by the Cummins
6.7L engine Powertrain Control Module (PCM). The PCM
manages engine combustion to allow the exhaust system's
catalyst to trap and burn Particulate Matter (PM)
pollutants, with no input or interaction on your part.
Additionally, the overhead console in your vehicle has
the ability to alert you to additional maintenance required
on your truck or engine. Refer to the following
messages that may be displayed on your Electronic
Vehicle Information Center (EVIC):

WARNING!
A hot exhaust system can start a fire if you park over
materials that can burn. Such materials might be
grass or leaves coming into contact with your exhaust
system. Do not park or operate your vehicle in areas
where your exhaust system can contact anything that
can burn.

Perform Service
The 6.7L Cummins engine utilizes a Closed Crankcase
Ventilation (CCV) system, EGR Valve and a EGR Cooler.
This system filters and recycles gasses produced in the
crankcase during the normal combustion process. Perform
Service will be displayed on the overhead console of
your vehicle if the CCV filter, EGR Valve and EGR Cooler
is due for required maintenance. The CCV filter is located
on the top of the engine valve cover. For additional
information, see your local authorized dealer.
Catalyst Full See Owner Manual
Catalyst Full See Owner Manual will be displayed on the
overhead console of your vehicle if the exhaust particulate
filter reaches 80% of its maximum storage capacity.
Under conditions of exclusive short duration and low
speed driving cycles, your Cummins engine and exhaust
aftertreatment system may never reach the conditions
required to remove the trapped PM, if this occurs Catalyst
Full See Owner Manual will be displayed on the
overhead console in your vehicle. If this message is
displayed you will hear one chime to assist in alerting
you of this condition.
Catalyst Stat::::::::::80%
Catalyst Stat::::::::::80% will replace the message Catalyst
Full See Owner Manual after it is displayed for one
minute. The engine Powertrain Control Module (PCM)
will continue to monitor the amount of particulate matter
trapped in the particulate filter. This message indicates
the percentage of the particulate filter capacity that has
been used.

By simply driving your vehicle at highway speeds for as
little as 45 minutes you can remedy the condition in the
particulate filter system and allow your Cummins engine
and exhaust Aftertreatment system to remove the
trapped PM and restore the system to normal operating
condition.
Catalyst Stat:::::::::::80%, 90%, 99%
Catalyst Stat:::::::::::80%, 90%, 99% If you are unable to
drive your vehicle under these conditions for an extended
period of time after the initial warning notification,
the Engine PCM will continue to monitor the
particulate filter and will display the progression of
particulate filter usage (80, 90, 99%) on the EVIC message
center.

CATALYST FULL SERVICE REQD
If the particulate filter reaches 99% of it's capacity the
overhead console in your vehicle will chime twice and
display the message CATALYST FULL SERVICE REQD.
At this point the engine PCM will register a fault code,
the instrument panel will display a MIL light and the
engine PCM will derate the truck reducing its horsepower
and torque output.
The PCM derates the engine in order to limit the likelihood
of permanent damage to the aftertreatment system.
If this condition is not corrected and a dealer service is
not performed, extensive exhaust aftertreatment damage
can occur. In order to correct this condition it will be
necessary to have the truck serviced by your local
authorized dealer.

Take the negative(black) cable off and wait a minute or two then replace it. Sometimes this will reset the service light.

This is a oil change reminder. Nothing fancy about, when you get your oil change go into the menu and click reset counter and it will go off. If there was something wrong with your car the check engine light would come on.

I expect your vehicule is equipped with an EVIC (electronic vehicule information center (overhead console). Different functions and displays should be described in depth in your owner manual.
I'm not 100% familiar with your console type but I expect that you get that particular message when the specific value YOU have determined as the being the threshold before your next maintenance interval (in regard to the millage) has been reached. The normal reading of the millage 'distance to service' before next maintenance should decrease until it reachs 0 then triggers the perform service alert message. Once your maintenance is done you should be able to reset the counter which will start a new count from the specified target value.
Based on usual EVIC operation mode I would try the following procedure to reset it.

- Turn your ignition swith on
- press step console button at repetition until you get the service interval display
- then press the reset button for few seconds
Hoping I'm telling right and that it will help
Dan

the air pressure in the spare tire is low add air to proper pressure and it will reset itself spare pressure low the perform service could also be for tire but check owners manual for reset service reminders or have scanned at an auto store sum,such as auto zone / advanced auto do it for free and can reset the code via scanner

1.Turn key on/eng off
2.Press brake pedal slowly 2 times
3.Press gas pedal 2 times within 10secs.
4.Turn key off