Author: Automotive expert specializing in Chinese vehicles, with hands-on experience in diagnostics, maintenance, and real-world operation of ICE, hybrid, and electric models.
Chinese cars from brands like Geely, Chery, Changan, and Haval have gained massive popularity thanks to their affordable prices, modern designs, and cutting-edge technology. However, many owners are unaware of the secret button combinations in Chinese cars that unlock hidden features and settings.
Warning: Use them carefully to avoid affecting your warranty, and consult your dealer if needed.
One of the most sought-after features is how to enter the engineering menu in Chinese cars, such as in the Geely Atlas Pro or Coolray. This menu provides access to adjusting parking sensors, screen brightness, and even enabling road sign recognition.
How to activate:
Start the engine or turn on the ignition
Hold the “Home” and “Menu” (gear icon) buttons on the multimedia screen for 5–10 seconds
The screen will flash, revealing the service interface
Here, you can test 360° cameras, tweak sound effects, or reset errors. This hidden feature in Geely helps customize the multimedia system to your needs, like boosting navigation volume. Avoid changing critical parameters without knowledge to prevent malfunctions. The feature is relevant for models from 2020–2025.
2. Secret Multimedia Settings in Chinese Cars: Changan UNI-T and CS75 Plus
Changan UNI-T CS75 Plus
In Changan vehicles like the UNI-T or CS75 Plus, access to secret multimedia settings in Chinese cars is available through a simple combination.
How to activate:
Tap the “Settings” (gear icon) button three times quickly
Hold your finger on the screen for 5 seconds
Enter the password “0000” or “1234” (or 201810, 1314, 1680, depending on the firmware)
In the engineering menu for Changan, you can calibrate the screen, test the audio system, enable hidden camera recording, or set up the air conditioning service mode. This is perfect for checking Bluetooth, Wi-Fi, or updating software. Owners love the ability to enable voice prompts or disable notifications. Be cautious: mistakes could lock the system, requiring an OBD scanner. Recommended for models after 2019.
3. Remote Engine Start: Hidden Features in Geely Monjaro
Geely Monjaro
The Geely Monjaro offers hidden features in Geely for remote engine starting—ideal for warming up the cabin in winter.
How to activate:
Press the “Lock” button on the key fob once
Hold the “Engine Start” (engine icon) button for 2 seconds
The headlights will flash, and the engine will run for 10–15 minutes. It works up to 50 meters away. After entering the car, shut off and restart to verify the key. This feature saves fuel by auto-shutting down if the door isn’t opened. It’s especially useful in cold climates and available in 2022–2025 models.
4. Car Locator on Parking Lots: Geely Monjaro Features
Geely Monjaro
Forgot where you parked? Secret button combinations in Chinese cars, like double-tapping the “Lock” button on the Geely Monjaro key fob, will make the car honk and flash headlights for 30 seconds.
Customize in the multimedia menu for lights only, no sound. It works up to 100 meters, even in security mode. This is one of the hidden features in Geely, available in all Monjaro trims from 2021–2025.
5. Automatic Window and Sunroof Closure: Hidden Features in Chinese Cars 2025
Hold the “Lock” button on the key fob for 3–5 seconds
The windows and sunroof will close smoothly, with headlights flashing confirmation. It also activates on a timer (28 hours after locking) or rain sensor. This prevents fogging and battery drain. Customize in the “Comfort” menu. Works in 2022–2025 models.
In the Chery Tiggo 8 Pro Max, Chery secret menus let you set the trunk opening angle.
How to activate:
Open the trunk to the desired height
Hold the close button on the trunk lid for 3–5 seconds until it beeps
The system remembers the position. This avoids hitting low ceilings in garages. Available in Pro Max trims from 2020.
7. Audio Customization: Secret Multimedia Settings in Changan UNI-K
Changan UNI-K
The Changan UNI-K provides secret multimedia settings in Chinese cars.
How to activate:
In the “Sound” menu, hold the “Greeting” button (or sound icon) for 5 seconds
Open a submenu for uploading MP3 files via USB (e.g., brand logo or engine roar)
The sound plays on startup or door opening. Works on 2021–2025 models with updated firmware.
8. Air Conditioning Service Mode: Chery Secret Menus in Tiggo 7 Pro
Chery Tiggo 7 Pro
The service mode for Chery in the Tiggo 7 Pro activates by holding the “Windshield Defrost” button for 3 seconds when selecting windshield airflow.
The system turns on A/C for dehumidifying and diagnoses the compressor (screen shows temperature). Great for checking refrigerant without a scanner. Available from 2019; disable with “Auto”.
Haval diagnostics in the Jolion starts by holding the “Trip” button while turning the ignition key.
All lights will illuminate, and gauges will sweep to check functionality. Lasts 10 seconds, auto-exits. Useful before maintenance. Works on 2020–2025 models.
10. Automatic Ventilation: Hidden Features in Chinese Cars 2025 for Geely Tugella
Geely Tugella
In the Geely Tugella, hidden features in Chinese cars 2025 include cabin ventilation.
How to activate:
In the “Climate” menu, hold “Ventilation” for 5 seconds
Activate a timer—fans run for 30 minutes after parking
Confirmed by a signal. Perfect for summer. Works on 2021–2025 models.
11. Maintenance Reset: Manual Service Light Reset
Haval Chery Geely
If you’ve performed an oil change yourself, you can reset the “Service Due” reminder without a professional scanner.
General Method (Works for most 2020-2025 models):
Turn the ignition to ON (do not start the engine).
Use the steering wheel buttons to navigate to the “Information” or “Service” tab on the dashboard.
Hold the “OK” or “Reset” button for 10–15 seconds until the mileage resets to 10,000 km.
For Chery: Sometimes requires holding the “Left Arrow” and “OK” simultaneously.
Note: In some newer 2025 firmwares, this can only be done through the “Vehicle Settings” menu in the main multimedia screen.
✅ Safety Checklist Before You Start:
✔️ Take a photo: Always photograph the original settings screen before changing any numbers.
✔️ Engine ON: Perform multimedia tweaks with the engine running to prevent battery drain and system shutdown.
✔️ Firmware Check: Ensure your car has the latest 2024/2025 OTA update for the best compatibility.
✔️ One change at a time: Don’t change multiple parameters at once, or you won’t know what caused an error.
FAQ
1. Is it safe to use secret button combinations in Chinese cars?
If you follow instructions, risks are minimal. Incorrect settings in engineering menus could affect systems. Consult your dealer to avoid warranty issues.
2. Do hidden features for Geely, Changan, Chery work on all models?
Combinations depend on year and firmware. Test on your vehicle, starting with basic settings.
3. Do secret menus affect warranty?
Tampering with electronics might lead to denied warranty repairs. Use cautiously.
4. What if I can’t enter the engineering menu in Chinese cars?
Check ignition and combination accuracy. If it fails, verify firmware or check owner forums.
5. Can I reset changes in the Changan engineering menu?
Usually, there’s a “Reset” option in the menu. If not, visit a service center.
6. Do secret multimedia settings in Chinese cars require tools?
Just buttons or key fob; for audio, a USB drive.
7. Is there a risk of damaging the car with hidden features in Chinese cars 2025?
Minimal if used correctly. Avoid unknown parameters.
📚 Sources
This material is based on official manufacturer documentation, regional technical bulletins, verified owner procedures, and hands-on workshop experience related to hidden menus, engineering modes, and infotainment settings in Chinese vehicles operated in Latin American markets between 2022–2025.
Official service manuals — Geely, Changan, Chery, Haval (Latin America specifications, 2022–2025).
Technical bulletins — Geely / Changan / Chery / Haval LATAM documentation covering firmware updates, infotainment configurations, calibration changes, and access to engineering or service menus (2024–2025).
Video guides and owner tutorials — Spanish-language YouTube channels, including “Autos Chinos Latam”, “Chinos en México”, featuring step-by-step demonstrations and firmware behavior across model years (2023–2025).
Personal workshop experience — practical diagnostics, infotainment configuration, and software-related troubleshooting in professional service environments across Mexico City, Lima, and Santiago (2021–2025).
Author: Egor Bespalov — Mechanical Engineer, 10 years of experience with Chery, AvtoMir Service, expert on Chinese cars. Writes about repair, diagnostics, and ownership experience of Haval, Chery, Geely, and Changan models.
