GMC Sierra 2020 Getting To Know Your Manual
![GMC Sierra 2020 manual cover](/images/fvrvNIlHrEXsmqOiJGcCrmZA/thumbs/thumb175x175.webp)
To reset the oil life monitor, turn the ignition to the "On" position without starting the engine. Use the arrow buttons on the steering wheel to find the "Oil Life" option on the display. Press and hold the checkmark button until the display resets to 100%.
The recommended tire pressure for the 2020 GMC Sierra is typically 35 PSI for both front and rear tires. However, it's best to check the sticker on the driver's side door jamb for exact specifications.
To pair your smartphone, go to the Bluetooth settings on your phone and ensure it's discoverable. In the Sierra, press the "Home" button on the infotainment system, select "Phone," then "Pair Device." Follow the prompts to complete the pairing process.
To enable the Wi-Fi hotspot, go to the infotainment screen, select "Settings," then "Wi-Fi." Follow the prompts to activate the hotspot and connect devices using the network name and password provided.
The 2020 GMC Sierra typically requires SAE 5W-30 engine oil. Refer to the owner's manual for specific oil requirements based on your engine type.
If the check engine light comes on, first check the gas cap to ensure it's tight. If the light remains, use an OBD-II scanner to read the error codes or visit a professional mechanic for diagnostics.
The towing capacity of the 2020 GMC Sierra varies depending on the engine and configuration. It can range from 7,900 to 12,100 pounds. Check your vehicle's specifications for exact details.
The air filter should be checked at every oil change and replaced approximately every 15,000 to 30,000 miles, depending on driving conditions. Refer to the owner's manual for recommendations.
To adjust the headlights, park the vehicle on level ground facing a wall 25 feet away. Use a screwdriver to turn the adjuster screws on the headlight assembly until the beams are properly aligned with the wall.
If the battery frequently dies, check for any lights or accessories left on. Test the battery's health and alternator output. If issues persist, consult a mechanic to inspect the electrical system.