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Indiana driving lesson · Parking, Pedestrians & Vehicle Safety

Vehicle equipment & warning devices

A 4-minute lesson from the Indiana course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.

Read time
4 minutes
Course unit
Parking, Pedestrians & Vehicle Safety
Checkpoint questions
6
Source pages
61, 62

Every vehicle needs working safety equipment, and trucks and buses have extra lighting rules. If you break down, warning devices protect you and other drivers.

Vehicle equipment diagram
Equipment your car should have

Your car should have (per the manual's diagram):

  • Headlights with high and low beams
  • Turn signals, red taillights, reflectors, stop lights, and a license plate light
  • Safety glass, windshield wipers, and a rearview mirror
  • A horn, bumpers, a muffler, and seat belts
  • Two separate ways to apply the brakes
Handbook p. 61 ↗

Know the rule

Every truck or bus must have two red tail lamps, one white rear license plate lamp, and at least one red stop lamp.

Handbook p. 62 ↗

Loads extending more than 4 feet past the rear

Loads extending more than 4 feet past the rear
WhenMark the end of the load with
Sunset to sunriseOne red lamp, visible from both sides and rear at 500 ft
Sunrise to sunsetOne red flag, 12+ sq. in., visible from both sides and rear
Handbook p. 62 ↗

Know the rule

Every bus, truck, and tractor-trailer must have a switch that flashes both front and both rear turn signals at the same time, working with the ignition on or off.

Handbook p. 62 ↗

Know the rule

If your car is disabled, even on the shoulder, stay visible: turn on your hazard lights, if available.

Handbook p. 62 ↗

Warning devices for a disabled car

Warning devices for a disabled car
SituationPlacement
Headlights required, divided highwayFuse, red lantern, or reflector 100 ft behind and ahead
Same, plusOne about 10 ft away, traffic side, toward traffic
DaytimeTwo red flags, about 100 ft ahead and 100 ft behind
Within 500 ft of a curve, hilltop, obstructionA warning device at least 500 ft from the car
Handbook p. 62 ↗

A disabled truck, bus, or tractor-trailer must display ONE of these sets:

  • Three bi-directional emergency reflective triangles (Federal Motor Vehicle Safety Standard No. 125)
  • At least six fuses
  • Three liquid-burning flares
Handbook p. 62 ↗

Placing a disabled truck's warning devices

Placing a disabled truck's warning devices
DeviceWhere
FirstTraffic side of the vehicle, toward nearest traffic
SecondAbout 100 ft toward approaching traffic, center of lane
ThirdAbout 100 ft the opposite way, center of lane
On a divided highway200 ft from your vehicle
Within 500 ft of a curve or hill crestAt least 500 ft from your vehicle
Handbook p. 62 ↗

Know the rule

When headlights aren't needed, use reflective triangles or red flags instead of flares, reflectors, or lanterns. No flare is then required on the traffic side.

Handbook p. 62 ↗

Put it into practice

Your car breaks down at night about 300 feet past a hilltop. Turn on your hazard lights and place a warning device at least 500 feet from your car, so drivers coming over the hill have time to react.

Check your understanding

Read the question, decide on an answer, then open it to check the explanation. These are Roadwise study questions based on the source handbook.

What must a load extending more than four feet beyond a vehicle's rear display?
  1. An orange flag at any time of day
  2. A white flag displayed day and night
  3. Amber flashing lamps on the load
  4. A visible red lamp or flag marking the extension

Answer: A visible red lamp or flag marking the extension

Loads extending more than four feet beyond the rear must display a red lamp between sunset and sunrise and a red flag between sunrise and sunset.

Handbook p. 62 ↗
From what distance must a required red projection lamp on a load be visible?
  1. 500 feet
  2. 100 feet
  3. 1,000 feet
  4. 50 feet

Answer: 500 feet

The red lamp must be mounted and visible from both sides and the rear at a distance of 500 feet.

Handbook p. 62 ↗
What warning devices must a disabled truck, bus, or tractor-trailer display on a roadway?
  1. A single red flag, day or night
  2. Three reflective triangles, or at least six fuses
  3. Hazard lights alone are enough
  4. One reflective triangle at the rear

Answer: Three reflective triangles, or at least six fuses

A disabled truck, bus, or tractor-trailer must display three bi-directional reflective triangles, at least six fuses, or three liquid-burning flares.

Handbook p. 62 ↗
In the daytime, how far in front of and behind a disabled car should its two red flags be placed?
  1. About 50 feet
  2. About 500 feet
  3. About 100 feet
  4. About 200 feet

Answer: About 100 feet

In the daytime, drivers of disabled cars must display two red flags, one approximately 100 feet in front of the car and one approximately 100 feet behind it.

Handbook p. 62 ↗
If your vehicle is disabled within 500 feet of a curve or hilltop, how far away must a warning device be placed?
  1. At least 100 feet from the vehicle
  2. At least 50 feet from the vehicle
  3. At least 200 feet from the vehicle
  4. At least 500 feet from the vehicle

Answer: At least 500 feet from the vehicle

If disabled within 500 feet of a curve, hilltop, or obstruction, a warning device must be placed at least 500 feet from the vehicle.

Handbook p. 62 ↗
A disabled tractor-trailer must display three bi-directional emergency reflective triangles or at least six fuses.
  1. True
  2. False

Answer: True

The handbook requires three reflective triangles conforming to federal standards, or at least six fuses.

Handbook p. 62 ↗
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