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Can I Change My Car Wheels From 16 Inch to 18 or 20 Inch?

     A Complete Guide to Legality, Safety, Tyres, Fitment and Getting It Right Changing the wheels on a car is one of the most popular modifications people make. A larger set of alloy wheels can completely transform the appearance of a vehicle. A car that looks ordinary on standard 16-inch wheels can look much more aggressive and sporty with 18, 19 or even 20-inch alloys. But what happens if your car currently has 16-inch wheels and you want to fit 18 or 20-inch wheels? Follow Car Guru DIY Blog Is it legal? Will the car still pass its MOT? Will the larger wheels damage the suspension? Will the tyres rub against the arches? Will your speedometer become inaccurate? And perhaps most importantly:  how do you make sure the modification is actually safe? The short answer is that increasing wheel diameter from 16 inches to 20 inches can be possible, but you cannot assume that any 20-inch wheel will fit simply because the bolt pattern looks correct. The wheel, tyre, suspensi...

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15 Hidden Car Features Almost Every Driver Misses

Modern vehicles are packed with technology and convenience features that many owners never discover. While most drivers know how to start the engine, adjust the mirrors, and use the air conditioning, countless useful functions remain hidden in owner’s manuals or buried deep inside dashboard menus.

Whether you drive a brand-new SUV, a family sedan, or a reliable older vehicle, there’s a good chance your car has features you’ve never used. Learning about them can make driving safer, more comfortable, and even save you money over time.

15 Hidden Car Features

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15 Hidden Car Features Almost Every Driver Misses


1. Fuel Door Indicator Arrow

Have you ever pulled into a gas station and forgotten which side your fuel cap is on?

Take a look at your fuel gauge. On most modern vehicles, there’s a small arrow next to the fuel pump icon. That arrow points to the side where your fuel filler door is located.

It’s a tiny detail that saves time and eliminates awkward repositioning at the pump especially helpful if you’re driving a rental or a new vehicle.


2. Automatic Window Roll-Up with the Key Fob

Many cars allow you to open or close all the windows remotely.

Simply press and hold the unlock button to lower the windows or hold the lock button to raise them. This feature varies by manufacturer, and in some vehicles it may need to be enabled through the settings.

It’s perfect for cooling down a hot car before getting inside during the summer.


3. Hidden Storage Compartments

Manufacturers love creating clever storage spaces.

Besides the glove box and center console, your vehicle may have:

  • Compartments beneath the seats
  • Hidden trays under the cargo floor
  • Secret storage inside armrests
  • Small drawers beneath dashboard panels
  • Sunglasses holders near the overhead console

These hidden spaces are ideal for storing emergency supplies, charging cables, first-aid kits, or important documents.


4. Adjustable Seat Belt Height

Many people don’t realize the upper seat belt anchor can be adjusted.

If the belt rubs against your neck or sits too low on your shoulder, press the release button on the pillar and slide the anchor up or down.

Proper seat belt positioning improves both comfort and safety.


5. Rearview Mirror Anti-Glare Mode

If your car has a manual rearview mirror, look underneath it for a small tab.

Flipping this lever changes the mirror angle to reduce glare from headlights behind you during nighttime driving.

Vehicles with automatic-dimming mirrors perform this adjustment electronically, but many drivers never realize how the manual version works.

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6. Speed-Sensitive Volume Control

Some infotainment systems automatically increase the audio volume as your speed rises.

Road noise becomes louder at highway speeds, so the system compensates without requiring constant adjustments.

If your stereo doesn’t seem to behave this way, check the audio settings it may simply be disabled.


7. Follow-Me-Home Headlights

After parking at night, many vehicles keep the headlights on for 30 to 90 seconds.

This feature lights your path to your front door before turning off automatically.

Depending on the vehicle, activating it may involve pulling the headlight stalk once after shutting off the engine.

It’s a surprisingly useful feature that many owners accidentally discover years after buying their car.


8. Steering Wheel Audio Controls

Many drivers continue reaching toward the center console to change music or adjust the volume.

Instead, most modern steering wheels include controls for:

  • Volume
  • Track selection
  • Voice commands
  • Phone calls
  • Cruise control
  • Driver assistance systems

Using these controls helps keep both hands closer to the wheel and reduces distractions.


9. Programmable Driver Profiles

Some vehicles remember personalized settings for multiple drivers.

A driver profile can automatically restore:

  • Seat position
  • Mirror adjustments
  • Climate settings
  • Radio presets
  • Navigation favorites
  • Steering wheel position

Families sharing one vehicle can switch between profiles with a single button or even through individual key fobs.


10. Windshield Wiper Service Position

Replacing windshield wipers can be frustrating when the hood blocks access.

Many vehicles have a maintenance or service mode that lifts the wiper arms into a vertical position.

The activation method differs by manufacturer but usually involves cycling the ignition and briefly moving the wiper control after shutting off the engine.

This makes cleaning or replacing blades much easier.


11. Emergency Trunk Release

Almost every modern car sold in many markets includes an emergency trunk release.

Inside the trunk is a glow-in-the-dark handle that allows someone trapped inside to open the trunk from within.

While hopefully never needed, it’s an important safety feature every driver should know about.


12. Automatic Door Lock Settings

Many vehicles allow you to customize when doors automatically lock and unlock.

Options may include:

  • Locking when shifting into Drive
  • Locking above a certain speed
  • Unlocking when parked
  • Unlocking only the driver’s door first
  • Automatic unlocking after a collision

These settings can usually be changed through the infotainment system or dashboard menu.


13. Cruise Control Isn’t Just for Highways

Adaptive cruise control has become far more advanced than traditional cruise systems.

Many newer vehicles can:

  • Maintain a safe following distance
  • Slow automatically in traffic
  • Stop completely
  • Resume driving with minimal driver input

Even conventional cruise control can improve fuel economy during long trips by maintaining a steady speed.


14. Child Safety Locks Aren’t Just for Children

Rear door child locks prevent doors from opening from the inside.

Most drivers only think about them when transporting young children, but they can also be useful when carrying pets or passengers who may accidentally pull interior door handles.

The switch is usually located on the edge of the rear door and can be activated with a key or small lever.


15. Tire Pressure Monitoring System Reset

After inflating or rotating tires, some vehicles require the tire pressure monitoring system (TPMS) to be reset.

Many owners mistake the warning light for a malfunction when the system simply needs recalibration.

The reset button may be hidden beneath the dashboard, inside the glove compartment, or accessible through the vehicle’s settings menu.

Consulting your owner’s manual can save an unnecessary trip to the repair shop.


Bonus Tips Worth Knowing

Beyond these hidden features, there are several small habits that can make your vehicle last longer and perform better:

  • Keep your tires properly inflated to improve fuel efficiency.
  • Replace windshield wiper blades before they begin streaking.
  • Clean the inside of your windshield for better nighttime visibility.
  • Check your spare tire pressure every few months.
  • Learn what each dashboard warning light means before one appears unexpectedly.
  • Store a flashlight, phone charger, and emergency blanket in your vehicle.
  • Review your owner’s manual at least once you’ll likely discover features you never knew existed.

Why Most Drivers Never Discover These Features

Automakers include hundreds of convenience functions, but many remain hidden because owners rarely read the manual after purchasing a vehicle. Salespeople also tend to focus on major features such as navigation systems or safety technology rather than smaller conveniences.

As a result, many drivers own a car for years without realizing it can automatically close its windows, remember seat positions, or provide extra lighting after parking.

Taking just thirty minutes to explore your vehicle’s settings could reveal dozens of useful functions that make everyday driving easier.


Final Thoughts

Cars today are smarter than ever before. From hidden storage compartments to customizable locking systems and automatic safety features, modern vehicles offer countless conveniences that often go unnoticed.

You may not find every feature listed here on your particular vehicle, since equipment varies by manufacturer and model year. However, chances are your car has several hidden capabilities waiting to be discovered.

The next time you get behind the wheel, spend a few minutes exploring your dashboard menus or flipping through your owner’s manual. You might uncover features that make every drive safer, more comfortable, and far more enjoyable all without spending a single penny.

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