Four-wheel drivePanama

Learn traffic rules with clear explanations and visual examples in our illustrated book, designed to make studying simple and engaging.

Traffic signs

Traffic rules

Panama

22. Four-wheel drive

Four-wheel drive, commonly abbreviated as 4WD or 4x4, is a drivetrain system capable of transmitting power to all four wheels of a vehicle. This can provide additional traction on surfaces such as snow, mud, gravel, sand or uneven terrain.

Four-wheel-drive systems may operate permanently or be engaged automatically or manually when additional traction is required. Four-wheel drive can improve the vehicle's ability to move on slippery or difficult surfaces, but it does not remove the need for suitable tyres, safe speed and careful braking and steering.

Vehicle with four-wheel drive going through mud.
Wikimedia.org • B101uk • CC BY-SA

What is four-wheel drive?

Four-wheel drive is a drivetrain system that can send power to all four wheels of a vehicle rather than only the front or rear wheels.

What does 4x4 mean?

4x4 normally indicates a vehicle with four wheels of which all four can be driven by the powertrain.

Is four-wheel drive the same as all-wheel drive?

The terms 4WD and AWD are sometimes used interchangeably, but manufacturers often use them for different types of system. Traditional 4WD systems commonly provide selectable driving modes, while AWD systems often distribute power automatically.

Does four-wheel drive improve traction?

Yes. Sending power to more wheels can improve traction when accelerating on snow, mud, gravel, sand or other low-grip surfaces.

Does four-wheel drive shorten braking distance?

Not automatically. Braking performance depends primarily on the tyres, road surface, speed, braking system and vehicle condition. Four-wheel drive should not encourage a driver to travel faster on slippery roads.

Does a four-wheel-drive vehicle still need suitable tyres?

Yes. The tyres provide the contact between the vehicle and road. Four-wheel drive cannot compensate for tyres that are unsuitable, excessively worn or incorrectly inflated.

Can four-wheel drive help in snow?

Yes. It can improve the ability to move away and climb on snow-covered roads, but safe braking and cornering still depend heavily on tyre grip and appropriate speed.

Can a four-wheel-drive vehicle drive off-road?

Some 4x4 vehicles are designed for off-road use, but four-wheel drive alone does not make every vehicle suitable for difficult terrain. Ground clearance, tyres, suspension and the drivetrain design are also important.

Can you use four-wheel drive on dry roads?

This depends on the type of drivetrain. Permanent or automatic systems are designed for normal road use, while some selectable 4WD systems should only be engaged under particular conditions. Follow the manufacturer's instructions.

Does four-wheel drive increase towing capacity?

It can improve traction when towing, but the legally and technically permitted trailer mass is determined by the vehicle's approved towing limits and local regulations, not simply by the presence of four-wheel drive.

Tow truck

Bicycle

1 Panama 2 Railway crossing 3 Reversing 4 Bus 5 Police 6 Pothole 7 Path 8 Particulates 9 Air pollution 10 Rush hour 11 Road code 12 Street gutter 13 Cargo bike 14 Forestry vehicle 15 Construction vehicle 16 Semi-trailer truck 17 Trolleybus 18 Speed pedelec 19 Delivery vehicle 20 Idling 21 Tow truck 22 Four-wheel drive 23 Bicycle 24 Motorcycle equipment 25 Rail track 26 Caravan 27 Trailer 28 Tow hitch 29 Siren 30 Convoy 31 Emergency vehicle lighting 32 Agricultural machinery 33 Electric bicycle 34 Electric vehicle 35 Pedelec 36 Quadricycle 37 Microcar 38 All-terrain vehicle 39 Van 40 Recreational vehicle 41 Scooter 42 Trikke 43 Personal mobility device 44 Skateboard 45 Segway 46 Kick scooter 47 Roller skates 48 Mailman 49 Hitchhiker 50 Toddler 51 Child 52 Disability 53 Motorail 54 km/h 55 mph 56 Speedometer 57 Ride height 58 Dirt road 59 Driving 60 Start-stop system 61 Manual transmission 62 Automatic transmission 63 Throttle 64 Tachometer 65 Steering wheel 66 Power steering 67 Visual scanning 68 Mirror 69 Fuel 70 Fuel gauge 71 Petrol 72 Diesel 73 Diesel exhaust fluid 74 Car insurance 75 First aid kit 76 Fire extinguisher 77 High-visibility clothing 78 First aid 79 Concrete step barrier 80 Barriers 81 Vehicle lights 82 Street lights 83 Dipped beam 84 High beam 85 Fog lights 86 Front fog lights 87 Rear fog lights 88 Side lights 89 Turn signals 90 Hazard lights 91 Dashboard lights 92 Bicycle lighting 93 Bicycle bell 94 Headlight flashing 95 Seat belt 96 Child restraints 97 Head restraints 98 Airbag 99 ABS 100 Esp ...