Mercedes-Benz GLS 2021 Owner's Manual
![Mercedes-Benz GLS 2021 manual cover](/images/729e3b962b78bee0aa9cea73/thumbs/thumb175x175.webp)
To reset the maintenance light, turn on the ignition without starting the engine. Use the steering wheel controls to navigate to the "Service" menu, select "Full Service," and then choose "Confirm Service." Follow the prompts to reset.
Mercedes-Benz recommends using synthetic motor oil with a viscosity rating of 0W-40 or 5W-30 that meets MB-Approval 229.5. Always refer to the owner's manual for specific oil specifications.
To update the navigation system, you can download the latest map data from the Mercedes-Benz website onto a USB drive. Insert the USB into the vehicle's port and follow the on-screen instructions to complete the update.
The recommended tire pressure for the Mercedes-Benz GLS 2021 is typically 36 PSI for the front tires and 42 PSI for the rear tires. Always check the driver's side door jamb for the specific tire pressure for your model.
To pair your smartphone, enable Bluetooth on your phone and select "Phone" on the vehicle's multimedia system. Choose "Connect Device" and follow the prompts to complete the pairing process.
If your key fob battery is low, you can replace it by sliding the release switch and removing the key insert. Open the battery compartment and replace the battery with a new CR2032 battery.
To enable the ECO start/stop function, press the ECO button located on the center console. The system automatically activates when conditions are appropriate, helping to reduce fuel consumption.
A "Check Engine" light can indicate various issues, such as a loose gas cap, faulty spark plugs, or oxygen sensor problems. It's advisable to use an OBD-II scanner to diagnose the issue or consult a certified Mercedes-Benz technician.
To activate parking assist, press the parking assist button located on the dashboard. Once activated, use the multimedia system to select the type of parking maneuver, and follow the prompts to assist in parking.
The Mercedes-Benz GLS 2021 has a towing capacity of up to 7,700 pounds when properly equipped. It is important to check your specific model's manual for any variations or additional towing guidelines.