QuizTraffic rulesIndonesia

Test your knowledge with our multiple-choice quiz. Learn from each answer and improve your understanding of the traffic rules and road signs of Indonesia.

For informational purposes only. Always follow official regulations. Some content and images were created with AI assistance.


What does this dashboard symbol indicate?

301. What does this dashboard symbol indicate?

Low oil pressure.
Low coolant level.
✓ Low engine oil level.
Engine-temperature warning.

This symbol indicates that the engine oil level is low. Check the oil level according to the manufacturer's instructions and add the correct oil if necessary.

Low oil-level warning symbol on the dashboard
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Rain can reduce tyre grip and increase stopping distance.

302. Rain can reduce tyre grip and increase stopping distance.

✓ True.
False.

Wet roads reduce traction, so your vehicle may need more distance to stop safely.

Vehicle travelling on a wet road
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How should a disabled vehicle be towed?

303. How should a disabled vehicle be towed?

✓ Use approved towing points and a method permitted by local rules.
At the highest possible safe speed.
By attaching a rope to the bumper.
With nobody controlling the disabled vehicle.

Incorrect towing can damage the vehicle or cause loss of control. Follow the manufacturer's instructions and local rules, and use professional recovery when the correct procedure is uncertain.

Disabled vehicle being towed
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you be careful when turning across oncoming traffic?

304. Why should you be careful when turning across oncoming traffic?

Turning makes your vehicle take longer to accelerate.
Your steering becomes less responsive during the turn.
✓ You must judge the speed and distance of approaching vehicles.
Turning gives you priority over approaching traffic.

Turning across traffic requires careful observation. Misjudging speed or distance can lead to a serious collision.

Vehicle preparing to turn across oncoming traffic
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do before driving away after charging an electric vehicle?

305. What should you do before driving away after charging an electric vehicle?

Place the cable loosely beside the charging bay.
Drive forward slowly to disconnect the plug.
Leave the charging flap open so it can cool.
✓ Disconnect the charging cable and secure it properly.

Before driving away, disconnect the charging cable correctly and return it to the charger or store it securely in the vehicle, as appropriate. Close the charging port and check that the area around the vehicle is clear.

Disconnecting an electric vehicle after charging
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do when approaching an uncontrolled junction?

306. What should you do when approaching an uncontrolled junction?

✓ Slow down, look carefully in all directions, and proceed only when safe.
Continue at normal speed unless another vehicle is visible.
Enter first if you reach the junction before another vehicle.
Rely on the priority rule without reducing your speed.

At an uncontrolled junction, priority may not be obvious. Reduce speed, check carefully, and only enter when you are sure it is safe.

Vehicle approaching an uncontrolled junction
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How should cyclists cross railway or tram tracks?

307. How should cyclists cross railway or tram tracks?

Brake firmly while the front wheel is on the rail.
✓ Cross at a safe angle, as close to perpendicular as possible.
Follow the rails briefly before crossing them.
Increase speed so the wheels cannot get caught.

A bicycle wheel can become trapped in a rail groove. Crossing at a wider angle reduces this risk.

Cyclist crossing rails in the road
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Where should passengers get in or out of a vehicle when possible?

308. Where should passengers get in or out of a vehicle when possible?

✓ On the side away from moving traffic.
Through whichever door opens first.
On the side closest to approaching traffic.
From the rear door nearest the centre of the road.

Passengers should get in or out on the side away from moving traffic whenever possible. This is particularly important for children, who may not recognise approaching traffic or other road users. Before opening any door, check that it is safe.

Passenger leaving a vehicle on the side away from traffic
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Does opening a window make an alcohol-impaired driver safe?

309. Does opening a window make an alcohol-impaired driver safe?

Yes, if you also drink some water.
Yes, but only when driving slowly.
Yes, if you feel more awake afterwards.
✓ No, fresh air does not remove alcohol from the body.

Fresh air may make someone feel more awake, but it does not reduce their alcohol concentration or restore safe driving ability.

Open car window and an alcohol-impaired driver
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do when driving on icy roads?

310. What should you do when driving on icy roads?

Use quick steering corrections if the vehicle starts to slide.
Maintain normal speed if the road appears clear.
✓ Drive slowly and avoid sudden braking, steering, or acceleration.
Follow the vehicle ahead more closely for guidance.

Ice greatly reduces tyre grip. Drive gently, keep extra distance, and avoid sudden movements that could cause a skid.

Vehicle travelling on an icy road
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if the oil-pressure warning light stays on?

311. What should you do if the oil-pressure warning light stays on?

Increase the engine speed until the light goes out.
✓ Stop safely, switch off the engine, and seek assistance.
Continue slowly until you reach a service station.
Add engine oil while the engine is still running.

Low oil pressure can quickly cause severe engine damage. Stop as soon as it is safe, switch off the engine, and investigate the cause before continuing.

Oil-pressure warning illuminated on the dashboard
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do when temporary traffic lights show red?

312. What should you do when temporary traffic lights show red?

✓ Stop before the signal or temporary stop line.
Only permanent traffic lights are valid.
Follow the vehicle ahead through the signal.
Continue if the road ahead appears clear.

Temporary traffic signals must be obeyed like permanent signals. Stop and wait until you are permitted to continue.

Red signal on temporary roadworks traffic lights
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does this dashboard symbol indicate?

313. What does this dashboard symbol indicate?

Engine-temperature warning.
Low tyre pressure.
Windscreen demister active.
✓ Low windscreen washer fluid.

This symbol indicates that the windscreen washer fluid level is low. Refill the washer-fluid reservoir with suitable fluid when possible.

Low washer-fluid warning symbol on the dashboard
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How should cyclists brake on a wet road?

314. How should cyclists brake on a wet road?

✓ Brake earlier and more gradually than usual.
Brake normally because wet roads do not affect grip.
Brake later and more firmly than usual.
Use only one brake to avoid skidding.

Wet surfaces reduce grip and increase stopping distance. Smooth, early braking helps prevent skidding.

Cyclist braking on a wet road
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if visibility is reduced by fog?

315. What should you do if visibility is reduced by fog?

Maintain normal speed if the road markings are visible.
✓ Slow down and use the correct lights.
Follow the vehicle ahead closely as a guide.
Use main beam to see further through the fog.

Fog makes it harder to see and be seen. Reduce speed, increase following distance, and use the correct lights.

Fog reducing visibility on a road
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if exhaust fumes begin entering the car?

316. What should you do if exhaust fumes begin entering the car?

Open the windows and continue to your destination.
✓ Open the windows, stop safely, leave the vehicle, and seek assistance.
Switch the ventilation to recirculation and keep driving.
Turn up the heater to clear the fumes.

Exhaust gases may contain carbon monoxide, which is poisonous and may not be visible. The exhaust system should be inspected before the vehicle is used again.

Vehicle exhaust fumes and cabin ventilation
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does this vehicle-control symbol indicate?

317. What does this vehicle-control symbol indicate?

✓ Air conditioning.
Air recirculation.
Fan speed.
Front windscreen demister.

The A/C symbol controls the vehicle's air-conditioning system. Air conditioning can cool and dehumidify the air inside the vehicle, which can also help clear mist from the windows.

Air-conditioning control with the A/C symbol
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if another road user makes a mistake?

318. What should you do if another road user makes a mistake?

Use your horn repeatedly to express your frustration.
Keep your course and expect them to correct their mistake.
Drive closer so they notice your presence.
✓ Stay calm and avoid creating more danger.

Road users can make mistakes. Staying calm and reacting safely helps prevent crashes.

Driver responding to another road user's mistake
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does the ACC position of a traditional ignition switch normally allow?

319. What does the ACC position of a traditional ignition switch normally allow?

The transmission to select Drive.
The parking brake to release.
✓ Electrical accessories to be used without starting the engine.
The starter motor to turn the engine.

The ACC (accessory) position normally supplies power to certain electrical accessories, such as the audio system, without starting the engine. The exact functions available can vary between vehicles.

ACC accessory position on an ignition switch
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you avoid unnecessary lane changes in roadworks?

320. Why should you avoid unnecessary lane changes in roadworks?

✓ Narrow lanes and changing layouts increase the risk of collision.
Changing lanes helps traffic move faster through roadworks.
Drivers should always use the lane with fewer vehicles.
Temporary lanes are designed for frequent lane changes.

Frequent lane changes create additional risk where space is limited and drivers are already adapting to temporary layouts.

Vehicles travelling through restricted roadworks lanes
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if you have taken drugs that may impair your driving?

321. What should you do if you have taken drugs that may impair your driving?

Wait until you feel more confident.
Drive only on familiar roads.
✓ Do not drive.
Drink coffee before driving.

Drugs can impair judgement, coordination, concentration, and reaction time. Their effects can be unpredictable and may continue after you feel that the main effects have passed. Do not drive while impaired.

Drug impairment and the decision not to drive
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if a child runs onto the road ahead?

322. What should you do if a child runs onto the road ahead?

✓ Brake firmly and be prepared to stop.
Swerve immediately into the opposite lane.
Flash your lights instead of slowing down.
Sound your horn and continue driving.

Children can act unpredictably. Brake firmly, stay alert, and be prepared for more children to follow.

Child entering the road ahead of a vehicle
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why is it dangerous to cross between parked cars?

323. Why is it dangerous to cross between parked cars?

You cannot hear approaching traffic between cars.
Pedestrians lose priority when crossing between cars.
Traffic always moves faster beside parked cars.
✓ Drivers may not see you or expect you to cross.

Parked vehicles can block the view between pedestrians and drivers. This makes it harder to see approaching traffic and harder for drivers to see you.

Pedestrian crossing between parked cars
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Who is responsible for staying safe when crossing the road?

324. Who is responsible for staying safe when crossing the road?

Only pedestrians once they enter the road.
Only the road user without priority.
Only the person who creates the danger.
✓ Everyone using the road.

Road safety is a shared responsibility. Pedestrians, drivers, and cyclists all need to stay alert and follow the rules.

Pedestrians and traffic sharing a road crossing
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Should motorcyclists wear protective clothing?

325. Should motorcyclists wear protective clothing?

✓ Yes, it can reduce injuries from falls and contact with the road.
No, it is only useful when riding at high speeds.
Yes, but only when riding on motorways.
No, a helmet provides enough protection on its own.

Motorcyclists should wear protective clothing because it can reduce injuries from falls, impacts and sliding on the road. Suitable jackets, trousers, gloves and boots provide additional protection, but they do not replace a securely fitted helmet or safe riding.

Motorcyclist wearing protective riding clothing
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does this vehicle-control symbol indicate?

326. What does this vehicle-control symbol indicate?

Front windscreen demister.
Windscreen wiper speed.
✓ Windscreen washer.
Air recirculation.

This symbol indicates the windscreen washer. Operating the control sprays washer fluid onto the windscreen and normally activates the wipers to help clean the glass.

Windscreen-washer control and spray symbol
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does the resume function of cruise control normally do?

327. What does the resume function of cruise control normally do?

Applies the brakes automatically.
✓ Returns the vehicle to the previously set cruising speed.
Sets the vehicle's current speed as a new limit.
Switches cruise control off completely.

The resume function normally returns the vehicle to the previously set cruise-control speed after the system has been temporarily disengaged. The driver should use it only when traffic and road conditions are suitable.

RES button for resuming the stored cruising speed
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if an animal is standing on the road at night?

328. What should you do if an animal is standing on the road at night?

Sound your horn and continue at the same speed.
✓ Slow down and be prepared to stop.
Switch off your headlights as you approach.
Flash your headlights repeatedly to make it move.

Animals may freeze, turn back, or move unpredictably when caught in vehicle headlights.

Animal standing on a road at night
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if a tyre-pressure warning appears and handling changes?

329. What should you do if a tyre-pressure warning appears and handling changes?

Accelerate slightly to warm the tyre.
Continue until the warning light goes out by itself.
✓ Reduce speed and stop safely to check the tyres.
Release air from the other tyres to balance the pressure.

A pressure loss or damaged tyre can affect steering and braking. If the tyre-pressure warning appears together with a change in handling, it may indicate a serious tyre problem. Stop safely and inspect the tyres before continuing.

Tyre-pressure warning and a tyre inspection
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if illness affects your ability to drive safely?

330. What should you do if illness affects your ability to drive safely?

Drive only if the journey is short.
Open a window to help you stay alert.
✓ Do not drive until you are fit to do so.
Drive slowly and avoid busy roads.

Illness can reduce concentration, alertness, coordination, or reaction time. If you do not feel fit to drive safely, postpone the journey or use another form of transport.

Driver feeling unwell before a journey
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you avoid removing the coolant cap while the engine is hot?

331. Why should you avoid removing the coolant cap while the engine is hot?

The thermostat may become damaged.
Opening it can reduce the engine oil pressure.
✓ Pressurised hot coolant may escape and cause serious burns.
The coolant level may become harder to read.

A hot cooling system may remain under pressure. Allow the engine to cool and follow the manufacturer's instructions before checking or adding coolant.

Coolant cap and the risk of hot pressurised coolant
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How can higher speed affect fuel or energy consumption?

332. How can higher speed affect fuel or energy consumption?

It always reduces consumption.
It improves tyre efficiency in every situation.
✓ It can increase consumption because air resistance rises.
It has no effect once the vehicle is moving.

As speed increases, aerodynamic resistance generally rises, so the vehicle needs more energy to maintain that speed. Driving smoothly at an appropriate speed can therefore reduce fuel or energy consumption.

Vehicle speed and aerodynamic resistance
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you avoid resting your foot on the clutch pedal while driving?

333. Why should you avoid resting your foot on the clutch pedal while driving?

It can lock the steering.
It can increase tyre pressure.
✓ It can cause unnecessary clutch wear.
It can apply the parking brake.

Resting your foot on the clutch pedal can apply slight pressure to the clutch mechanism and cause unnecessary wear. Keep your left foot off the clutch when it is not needed.

Foot position near the clutch pedal
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should a motorcycle helmet be worn correctly and securely fastened?

334. Why should a motorcycle helmet be worn correctly and securely fastened?

✓ To reduce the risk of serious head injury in a collision.
To improve the rider's hearing in traffic.
To make the motorcycle easier to balance.
To reduce fuel consumption at higher speeds.

A correctly fitted and securely fastened motorcycle helmet helps protect the rider's head and can reduce the risk and severity of head injury in a collision or fall.

Motorcyclist wearing a securely fastened helmet
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does this dashboard symbol indicate?

335. What does this dashboard symbol indicate?

Power-steering warning.
✓ Cruise control.
Electronic stability control.
Speed limiter.

This symbol indicates the cruise-control system. Cruise control can maintain a selected vehicle speed without the driver continuously pressing the accelerator. The exact indicator behaviour can vary between vehicles.

Cruise-control indicator symbol on the dashboard
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do before crossing behind a bus or large vehicle?

336. What should you do before crossing behind a bus or large vehicle?

Cross as soon as the vehicle has stopped.
✓ Wait until you have a clear view of the road.
Stay close behind the vehicle while crossing.
Listen for traffic and cross if you hear none.

Large vehicles can block your view and hide you from drivers. Wait until you can clearly see the road before crossing.

Pedestrian preparing to cross behind a bus
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do when joining a motorway from an entry lane?

337. What should you do when joining a motorway from an entry lane?

✓ Match your speed, check around you, and merge into a safe gap.
Merge as soon as the entry lane begins.
Stop at the end of the entry lane and wait for a large gap.
Enter at a low speed and let motorway traffic adjust.

Use the entry lane to build a suitable speed, check carefully, signal, and merge only when it is safe.

Vehicle joining a motorway from an entry lane
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Where should you change a wheel after a puncture?

338. Where should you change a wheel after a puncture?

✓ On firm, level ground well away from moving traffic.
Where the puncture occurred, as long as the hazard lights are on.
As close to moving traffic as possible to keep off the verge.
On a slight slope if the parking brake is applied.

The vehicle must be stable and protected from traffic. Apply the parking brake and follow the manufacturer's wheel-changing instructions.

Wheel change on firm ground away from traffic
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you expect when lanes become narrower in roadworks?

339. What should you expect when lanes become narrower in roadworks?

The speed limit automatically increases.
✓ Less space between your vehicle, barriers, and other traffic.
Temporary lane markings no longer need to be followed.
Large vehicles must stop before entering the narrow section.

Narrow lanes leave less room for error. Keep a steady position, avoid drifting toward barriers or nearby vehicles, and reduce speed if necessary.

Narrow traffic lanes through roadworks
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you avoid if your vehicle starts to skid?

340. What should you avoid if your vehicle starts to skid?

Stay calm and maintain control.
Use smooth steering movements.
Allow the tyres time to regain grip.
✓ Sudden braking, acceleration, or sharp steering.

Sudden braking, acceleration, or steering can make a skid worse. Stay calm and use smooth controls while the tyres regain grip.

Vehicle beginning to skid
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What is the general speed limit for cars on ordinary roads outside built-up areas in Indonesia?

341. What is the general speed limit for cars on ordinary roads outside built-up areas in Indonesia?

90 km/h.
100 km/h.
Other speed limit.
✓ 80 km/h.

In Indonesia, the general speed limit for cars on ordinary roads outside built-up areas is 80 km/h, unless signs indicate otherwise.

Speed limits for cars outside built-up areas
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you follow the manufacturer's service schedule?

342. Why should you follow the manufacturer's service schedule?

It means routine checks between services are unnecessary.
✓ Regular servicing can identify wear and maintain safety and reliability.
It allows vehicle problems to be ignored until the next service.
It guarantees that no faults will develop between services.

Scheduled servicing helps ensure that brakes, tyres, fluids, filters, steering, suspension, and other important systems are checked and maintained before faults become more serious.

Vehicle maintenance following a servicing schedule
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if another vehicle is signalling to turn?

343. What should you do if another vehicle is signalling to turn?

✓ Do not rely on the signal alone, proceed only when it is safe.
Pull out because the vehicle will turn.
Use your horn and proceed immediately.
Assume the driver has seen you.

An indicator shows an intention, but it does not guarantee that the driver will turn. The signal may have been left on accidentally or the driver's intentions may change. Observe the vehicle's speed and position and proceed only when you are sure it is safe.

Another vehicle signalling to turn
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does this vehicle-control symbol indicate?

344. What does this vehicle-control symbol indicate?

Automatic headlights.
Interior lighting.
Front fog lights.
✓ Instrument-panel brightness.

This control adjusts the brightness of the instrument panel and dashboard illumination, allowing the driver to reduce or increase the lighting level.

Control for adjusting instrument-panel brightness
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Which signs may indicate that you are becoming too tired to drive safely?

345. Which signs may indicate that you are becoming too tired to drive safely?

Feeling hungry and slightly thirsty.
Feeling comfortable and relaxed.
✓ Yawning, heavy eyelids, and difficulty concentrating.
Listening to quieter music.

Warning signs of driver fatigue can include repeated yawning, heavy eyelids, difficulty concentrating, wandering thoughts, and trouble maintaining a steady road position. These signs mean you should stop and rest before continuing.

Driver showing signs of fatigue
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if oncoming headlights dazzle you at night?

346. What should you do if oncoming headlights dazzle you at night?

Turn on your interior lights to reduce the glare.
Look briefly at the headlights to judge their position.
✓ Slow down and look toward the edge of your lane.
Maintain your speed until the vehicle has passed.

Bright headlights can reduce your vision. Avoid staring at them, slow down if needed, and use the road edge or lane markings to guide you safely.

Oncoming headlights dazzling a driver at night
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Should the legal alcohol limit be treated as a safe target?

347. Should the legal alcohol limit be treated as a safe target?

✓ No, impairment can begin before the legal limit is reached.
Yes, because impairment begins only above the limit.
Yes, if you know exactly how much you have drunk.
Yes, when driving only a short distance.

A legal limit is an enforcement threshold, not a recommended drinking level. Even a small amount of alcohol can affect driving performance.

Alcohol consumption and the limits of safe driving
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if the windscreen wipers stop working during heavy rain?

348. What should you do if the windscreen wipers stop working during heavy rain?

Use the washer fluid repeatedly to clear the windscreen.
Continue slowly using the hazard lights.
✓ Reduce speed and stop in a safe place as soon as possible.
Open a side window and continue driving carefully.

Do not continue when you cannot see clearly. Slow down smoothly and stop somewhere protected from traffic.

Windscreen wipers failing during heavy rain
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if a motorcycle helmet visor is badly scratched?

349. What should you do if a motorcycle helmet visor is badly scratched?

✓ Replace it before riding.
Keep using it if the weather is dry.
Ride with the visor raised.
Cover the scratches with clear tape.

A badly scratched or damaged visor can reduce or distort your view, especially in bright sunlight or at night. Replace a visor that no longer provides a clear, safe view and follow the helmet manufacturer's instructions.

Scratched visor on a motorcycle helmet
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should an unused roof rack or roof box be removed?

350. Why should an unused roof rack or roof box be removed?

It makes the steering wheel harder to turn.
It reduces the vehicle's braking power.
It prevents the battery from charging.
✓ It can increase aerodynamic drag and energy use.

An unused roof rack or roof box increases aerodynamic drag, particularly at higher speeds. Removing it when it is not needed can reduce fuel or energy consumption.

Roof rack or roof box fitted to a vehicle
AI-generated by Traffic-rules.com • WCIT • CC BY-SA