Resetting the service message

@bertiedied24347 To reset the service indicator you will need to access the vehicle's hidden workshop menu.

Turn ignition to Position 1. Insert your key and turn it exactly one click to the right. Do not start the engine. (If you have push-to-start, press the Start button once without your foot on the brake)

• Use the steering wheel arrows to ensure your instrument cluster is displaying the standard Trip/Mileage screen. The hidden menu will not trigger if the screen is showing your speed, audio, or a pending service message.
• Press and hold the Phone (Accept Call) button on the right side of the steering wheel.
• Within one second of pressing the Phone button, press and hold the OK button on the left side. Keep both buttons held down together for about 5 seconds.
• The screen will change to a hidden menu. Scroll down to ASSYST PLUS and press OK.
• Scroll down to Full Service and press OK.
• Scroll down to Confirm Service (or "Confirm Full Service") and press OK. Note: Depending on your exact model, it may ask you to select your oil grade first (e.g., 229.5 or 229.51) — select it and press OK.
• The screen will ask "Service carried out?". Scroll to Yes and press OK. It will warn you that this cannot be undone. Scroll down to Confirm and press OK one last time.

Now turn the ignition off, and the service reminder should be off the next time you start the car. For more info on this check the video here as well as on here