12/01/2016
Many modern vehicles are equipped with a surprising array of features that aren't immediately obvious from the user manual or the dashboard. These are often referred to as 'hidden features' or 'easter eggs', and they can range from convenient software tweaks to clever hardware functionalities that can significantly enhance your driving experience. Whether you're a seasoned petrolhead or a new driver, understanding these hidden capabilities can unlock a new level of appreciation for your car.
Hidden car features are essentially functionalities or settings that are present in your vehicle's system but are not readily accessible through the standard controls or documentation. Manufacturers often include these for various reasons:
- Diagnostic Purposes: Some features are primarily for use by technicians during servicing or diagnostics.
- Regional Variations: Features may be enabled or disabled based on the market the car is sold in. What's standard in one country might be a hidden gem in another.
- Software Updates and Futureproofing: Manufacturers might include capabilities in the car's computer that could be activated later via software updates, or for specific trim levels.
- Marketing and Differentiation: Sometimes, unique features are reserved for higher trim levels or specific model years to differentiate them.
- 'Easter Eggs': In a more playful sense, some manufacturers embed genuinely fun, non-essential features, much like easter eggs in video games.
Accessing these features often requires a specific sequence of button presses, a particular diagnostic tool, or even a software interface that can communicate with the car's onboard computer (ECU - Engine Control Unit). It’s important to note that while many of these are harmless and can even be beneficial, tampering with certain settings could potentially affect your vehicle's warranty or even its performance if not done correctly.
Hidden features can be broadly categorised, making them easier to understand and identify:
Infotainment System Tweaks
The infotainment system is a prime area for hidden features. These can include:
- Enhanced Bluetooth Connectivity: Sometimes, more advanced Bluetooth profiles or multi-device pairing can be enabled.
- Video Playback: Certain cars, particularly those with larger screens, might have the capability to play video files from USB drives, often disabled by default.
- Customisable Displays: You might be able to alter the information shown on your digital instrument cluster or infotainment screen, such as adding a digital speedometer or changing the colour schemes.
- Android Auto/Apple CarPlay Activation: In some cases, if your car is equipped with the necessary hardware, these features might be unlockable through software.
Lighting and Exterior Features
The car's lighting system is another common source of hidden functionalities:
- Welcome Lights: The ability for headlights or interior lights to turn on automatically when you approach the car with the key fob.
- Automatic Headlight Levelling: While often standard, the sensitivity or behaviour of automatic headlights might be adjustable.
- Cornering Lights: Fog lights or dedicated cornering lights that illuminate when you turn the steering wheel at low speeds.
- US/EU Style Lighting: In some regions, certain lights might be configured differently (e.g., front side markers being brighter or constantly on).
Climate Control and Comfort Features
Even the climate control system can hold surprises:
- Recirculation Lock: Forcing the system to stay on recirculation mode, useful in polluted areas.
- Fan Speed Control: Some systems allow for finer control over fan speed beyond the standard steps.
- Auxiliary Heater/Cooler Activation: In colder climates, a pre-heating function might be available, or in hotter climates, a pre-cooling function.
Driving and Performance Settings
These are often the most sought-after hidden features, though they require the most caution:
- Sport Modes: Beyond the standard 'Eco' or 'Comfort' modes, there might be a more aggressive 'Sport+' mode or other performance-oriented settings that alter throttle response, gear shift points, and steering feel.
- Traction Control Off: While usually accessible via a button, some cars might have a more thorough 'off' setting for track use, often requiring a longer press or a specific sequence.
- Launch Control: A feature designed to provide optimal acceleration from a standstill, typically found in performance vehicles.
- Adaptive Cruise Control (ACC) Settings: Adjusting the following distance or the responsiveness of the ACC system.
Discovering these hidden gems usually involves a combination of research and careful execution:
1. Online Forums and Communities
Car-specific forums and online communities are invaluable resources. Enthusiasts often share their findings, detailing specific button sequences, diagnostic tool codes, or software methods for unlocking features on particular models or even specific years of a model. Websites like Reddit (with subreddits for specific car brands or models), enthusiast forums (e.g., Bimmerpost for BMW, Rennlist for Porsche), and even YouTube channels dedicated to car modifications are excellent places to start your research.
2. Diagnostic Tools and OBD-II Scanners
The On-Board Diagnostics (OBD-II) port, usually located under the dashboard, allows access to your car's computer. While basic OBD-II scanners can read error codes, more advanced scanners or specific software interfaces (like VCDS for Volkswagen Group cars, or FORScan for Ford/Lincoln) can be used to modify settings within various control modules (e.g., BCM - Body Control Module, ICM - Instrument Cluster Module). These tools often require a laptop or smartphone and can be relatively inexpensive for basic functionality, though professional-grade tools can be costly.
Important Note: When using diagnostic tools, ensure you are using software compatible with your vehicle's make and model. Incorrectly changing settings can lead to serious issues.
Some simpler features can be activated by performing a specific sequence of actions with the ignition key, engine start button, or key fob. For example, turning the ignition on and off a certain number of times, or holding down specific buttons on the key fob while the ignition is in a particular state.
4. Manufacturer-Specific Software
Some manufacturers provide official or semi-official software tools that dealers use. While access to these is usually restricted, some enthusiasts manage to obtain them and discover how to enable features. However, this is often complex and carries a higher risk.
A Comparative Look at Feature Availability (Example)
The availability of hidden features can vary dramatically between manufacturers and even between different models within the same brand. Here's a simplified comparison:
| Feature | Manufacturer A (e.g., German Premium) | Manufacturer B (e.g., Japanese Mainstream) | Manufacturer C (e.g., American Muscle) |
|---|---|---|---|
| Video Playback via USB | Often unlockable via software/OBD | Rarely available or unlockable | Occasionally available on performance trims |
| Cornering Lights | Commonly unlockable; may be standard on higher trims | Less common; sometimes integrated with fog lights | Rarely featured |
| Sport+ Mode | Frequently present but locked to higher trims | More often found as a standard option on performance models | Often related to engine/suspension tuning, less about software modes |
| Launch Control | Exclusive to high-performance models; usually requires specific conditions | Found on performance variants (e.g., WRX, Civic Type R) | Often available on performance models (e.g., Mustang GT) |
| Customisable Digital Dash | Highly configurable; many hidden display options | Limited customisation; fewer hidden display options | Focus on performance readouts; less software customisation |
Risks and Considerations
While exploring hidden features can be exciting, it's crucial to be aware of the potential risks:
- Warranty Voidance: Modifying software or activating features not officially supported by the manufacturer could void parts of your warranty. Always check your warranty terms.
- System Instability: Incorrectly changing settings can lead to glitches, system errors, or even make certain electronic modules inoperable.
- Safety Implications: Features related to safety systems (like ABS, traction control, or airbags) should never be tampered with unless you are an expert and understand the exact implications.
- Legal Compliance: Some features might be disabled for legal reasons in certain regions (e.g., lighting configurations). Reactivating them could make your vehicle non-compliant with local regulations.
Always proceed with caution and thorough research. If you're unsure, it's best to consult a reputable mechanic or specialist.
Frequently Asked Questions (FAQs)
In some cases, yes. Features like 'Sport' or 'Track' modes can alter engine and transmission mapping for better acceleration and responsiveness. However, this is usually a software adjustment, not a fundamental hardware upgrade, so expect marginal gains rather than dramatic increases in power.
Not necessarily. While many are harmless infotainment or convenience tweaks, features related to engine management, transmission, or safety systems carry a higher risk if not implemented correctly. Always research the specific feature and its potential impact.
The best way is to research your specific car model and year online. Car forums, enthusiast websites, and YouTube channels dedicated to your model are excellent resources for discovering what's possible.
Sometimes, yes. Dealerships have access to manufacturer diagnostic tools and can often activate features that are standard on higher trim levels or in different markets, usually for a fee. However, they may be reluctant to activate features that are not officially supported or could be seen as a liability.
This varies by manufacturer, but common ones include enabling video playback on infotainment screens, activating cornering lights, changing the gauge cluster display (e.g., adding a digital speedo), or tweaking the automatic start/stop system behaviour.
Conclusion
Your car is likely more capable than you realise. By delving into the world of hidden features, you can unlock a range of functionalities that can make your driving experience more enjoyable, convenient, and even more engaging. Remember to always prioritise safety, research, and responsible modification. Happy exploring!
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