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OH CDL School Bus Test study materials
OH CDL School Bus Test study resources

OH CDL School Bus Test practice questions

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Question 1Vehicle Inspection and Basic Control

Before departing on a route, a school bus driver should perform a pre-trip inspection primarily to confirm that:

  1. fare collection equipment is functioning properly
  2. the route schedule has been approved by dispatch
  3. the bus is mechanically sound and safety equipment is in place Correct answer.
  4. student seating assignments are posted at each stop

Explanation

A pre-trip inspection is a systematic walk-around and in-cab check that verifies brakes, lights, tires, mirrors, emergency exits, and required safety equipment before the bus carries passengers. It is a safety duty owed to students, not an administrative or fare-related task.

Question 2Vehicle Inspection and Basic Control

During the pre-trip inspection, the driver should check the emergency exits to ensure they:

  1. have been removed for summer storage
  2. are painted the same color as the interior
  3. are locked to prevent student tampering
  4. open freely and the warning buzzer sounds Correct answer.

Explanation

Emergency exits must open smoothly from inside and outside, and the audible warning device must activate when an exit is opened so the driver knows immediately. Exits that stick or whose buzzer fails are a defect that must be corrected before the route.

Question 3Vehicle Inspection and Basic Control

When checking the bus's mirrors before a run, the driver should adjust the crossover mirrors so that the driver can see:

  1. the interior of the bus behind the driver's seat
  2. the roofline of the bus for clearance
  3. only the rear wheels of the bus
  4. the area directly in front of the hood and the front bumper Correct answer.

Explanation

Crossover (convex) mirrors are aimed to reveal the blind spot immediately in front of the bus, where small children may stand out of view of the flat mirrors. Proper aim lets the driver see the front bumper and hood edge before moving.

Question 4Vehicle Inspection and Basic Control

A driver finds that the service door does not close completely and the warning light stays on. The correct action is to:

  1. drive the route but keep speeds under 25 mph
  2. report the defect and keep the bus out of service until it is repaired Correct answer.
  3. ignore the light because it is only a convenience indicator
  4. have a monitor hold the door shut during the trip

Explanation

A door that will not close fully is a safety defect that affects student containment and the door warning circuit. The bus should be placed out of service and the defect reported so it can be repaired before carrying passengers.

Question 5Vehicle Inspection and Basic Control

The air brake check on a school bus includes a static leak test because:

  1. it verifies that the heater blower is operating
  2. a pressure loss greater than the allowed rate means the brakes may not hold Correct answer.
  3. air brakes require no maintenance if the gauge reads normal
  4. the test confirms the parking brake cable tension

Explanation

With the system charged and the engine off, pressure should not drop faster than the manufacturer's allowable rate. Excessive leakage means the brakes could fail to hold or stop the bus, so the vehicle must be taken out of service.

Question 6Vehicle Inspection and Basic Control

When performing the brake test at low speed, the driver is checking for:

  1. the temperature of the tires
  2. the brightness of the dome lights
  3. the color of the brake fluid reservoir
  4. pulling to one side, unusual noises, and a firm pedal Correct answer.

Explanation

A moving brake test reveals steering pull, grabbing, unusual noise, and pedal feel that a static inspection cannot. These symptoms indicate brake imbalance or hydraulic problems that must be corrected before the route.

Question 7Vehicle Inspection and Basic Control

Before backing a school bus, the driver should:

  1. walk to the rear to confirm the area is clear and use a spotter if available Correct answer.
  2. rely only on the mirrors and back immediately
  3. sound the horn once and accelerate slowly
  4. ask students to watch from the windows

Explanation

Backing is the highest-risk maneuver because of large blind spots. The driver should exit and check behind the bus, use a spotter when one is available, and back only when the area is confirmed clear.

Question 8Vehicle Inspection and Basic Control

The proper hand position for maximum steering control on a school bus is generally described as:

  1. one hand at 12 o'clock with the other resting on the door
  2. both hands at the bottom of the wheel
  3. hands crossed at the top of the wheel
  4. both hands on the outside of the wheel at about 9 and 3 o'clock Correct answer.

Explanation

Holding the wheel at roughly 9 and 3 o'clock keeps both hands on the rim, allows full control, and avoids the risk of hand injury from a deploying airbag or a sudden wheel kick.

Question 9Vehicle Inspection and Basic Control

A school bus driver approaching a railroad crossing should:

  1. rely on the crossing signals alone
  2. slow down and proceed without stopping if the gate is up
  3. stop, open the window, look and listen, then proceed when clear Correct answer.
  4. honk and cross without stopping

Explanation

School buses must stop at railroad crossings, open the window to hear approaching trains, and look both ways before proceeding. Signals and gates can fail, so the driver must make an independent visual and auditory check.

Question 10Vehicle Inspection and Basic Control

When making a right turn in a school bus, the driver should:

  1. swing wide enough to keep the rear wheels from striking the curb Correct answer.
  2. ignore the right mirror during the turn
  3. accelerate through the turn to save time
  4. turn from the left lane to make a wider arc

Explanation

The rear wheels track inside the front wheels, so the driver must allow for off-tracking and watch the right mirror to keep the rear tires clear of the curb and any pedestrians.

Question 11Vehicle Inspection and Basic Control

The most important reason to maintain a following distance of at least one second for every ten feet of bus length is that:

  1. it prevents the students from talking
  2. it keeps the bus in the correct lane
  3. it reduces fuel consumption
  4. the bus needs a long stopping distance because of its weight Correct answer.

Explanation

A fully loaded school bus is heavy and requires a much longer distance to stop than a passenger car, so following distance must be increased accordingly. The one-second-per-ten-feet guideline gives room to react and stop safely.

Question 12Vehicle Inspection and Basic Control

When a school bus is stopped to load or unload students, the driver should:

  1. allow students to cross without checking traffic
  2. leave the engine running and step away from the controls
  3. activate the flashing red lights and stop arm as required by law Correct answer.
  4. turn off all warning lights to avoid confusion

Explanation

The flashing red lights and stop arm warn other traffic that students are crossing or boarding, and their use is required when students must cross the roadway. The driver must remain at the controls and monitor students.

Question 13Vehicle Inspection and Basic Control

Before opening the service door at a bus stop, the driver should first:

  1. sound a long horn blast to alert the neighborhood
  2. check both mirrors and the area around the door for approaching traffic and pedestrians Correct answer.
  3. release the parking brake
  4. turn off the interior lights

Explanation

The driver must confirm that traffic is stopped or clear and that no pedestrians are in the danger zone before opening the door and releasing students. This check prevents students from stepping into the path of a passing vehicle.

Question 14Vehicle Inspection and Basic Control

The danger zone around a stopped school bus is best described as:

  1. the area more than fifty feet ahead of the bus
  2. the area behind the bus only
  3. the area within about ten feet around the bus where the driver may lose sight of students Correct answer.
  4. the interior aisle of the bus

Explanation

The danger zone is the space immediately around the bus, roughly ten feet in all directions, where students can move out of the driver's view. Drivers must account for every student in that zone before moving the bus.

Question 15Vehicle Inspection and Basic Control

A student drops a book in the aisle while the bus is moving. The safest driver response is to:

  1. brake sharply in the traffic lane to stop immediately
  2. reach down to pick it up while steering with one hand
  3. ask another student to crawl under the seats
  4. continue to a safe stop and have the student retrieve the item after the bus is stopped Correct answer.

Explanation

The driver must never take attention or hands away from controlling the bus while it is moving. The safe approach is to continue to a safe stopping place and deal with the item once the bus is stopped.

Question 16Vehicle Inspection and Basic Control

When driving in fog, a school bus driver should:

  1. follow the vehicle ahead closely to use its taillights
  2. reduce speed and use low-beam headlights Correct answer.
  3. use high-beam headlights to see farther
  4. stop in the travel lane until the fog lifts

Explanation

Fog reflects high-beam light back at the driver, so low beams are used to reduce glare and improve visibility. Reducing speed increases reaction time and stopping margin in reduced visibility.

Question 17Vehicle Inspection and Basic Control

On a slippery road, the recommended braking technique for a school bus without antilock brakes is to:

  1. apply steady, firm pressure without locking the wheels Correct answer.
  2. pump the pedal rapidly and repeatedly
  3. shift to neutral and coast
  4. slam the pedal to the floor

Explanation

Steady, firm pressure that does not lock the wheels preserves steering control and avoids a skid. Locked wheels slide and prevent the driver from steering around a hazard.

Question 18Vehicle Inspection and Basic Control

When a school bus begins to skid on ice, the driver should:

  1. brake hard and turn the wheel opposite the skid
  2. accelerate to pull out of the skid
  3. turn the wheel sharply toward the skid
  4. ease off the accelerator and steer in the direction the bus should go Correct answer.

Explanation

Easing off the accelerator lets the tires regain traction, and steering where the driver wants the bus to go helps align the vehicle with its path. Hard braking or sharp steering inputs can worsen a skid.

Question 19Vehicle Inspection and Basic Control

A school bus driver approaching a curve on a rainy day should:

  1. accelerate through the curve to maintain momentum
  2. slow down before entering the curve and maintain a steady speed through it Correct answer.
  3. coast through the curve with the clutch disengaged
  4. brake hard in the middle of the curve

Explanation

Braking should be completed before the curve while the bus is traveling straight, then a steady speed maintained through the turn. Braking mid-curve on wet pavement can cause a loss of traction and a skid.

Question 20Vehicle Inspection and Basic Control

When the school bus is equipped with antilock brakes and the driver must stop hard, the correct technique is to:

  1. press the brake pedal firmly and hold it while steering Correct answer.
  2. apply the parking brake as well
  3. pump the brake pedal to avoid wheel lock
  4. release the brake whenever the pedal vibrates

Explanation

Antilock brakes prevent wheel lock automatically, so the driver should apply firm, continuous pressure and steer. Pedal vibration is normal ABS operation and is not a reason to release the brake.

Question 21Vehicle Inspection and Basic Control

Before leaving a stop with students aboard, the driver should:

  1. turn off the warning lights before moving
  2. check both mirrors, signal, and confirm the door is closed Correct answer.
  3. sound the horn to warn other drivers
  4. accelerate quickly to merge with traffic

Explanation

The driver must confirm the door is closed, students are seated and clear of the aisle, and mirrors show no hazards before signaling and pulling out. This routine prevents students from being caught in the door or left behind.

Question 22Vehicle Inspection and Basic Control

The driver's daily post-trip inspection is important because it:

  1. allows the driver to skip the walk-around before the next route
  2. catches defects and confirms no students remain on the bus Correct answer.
  3. replaces the pre-trip inspection for the next day
  4. is only required when a defect is already known

Explanation

The post-trip walk-through checks for mechanical problems that developed during the day and confirms that no student has been left aboard. Defects found are reported so they can be repaired before the bus is used again.

Question 23Vehicle Inspection and Basic Control

During the pre-trip inspection, the driver notices a tire with a visible bulge in the sidewall. The driver should:

  1. take the bus out of service and report the tire for replacement Correct answer.
  2. cover the bulge with a tire cover
  3. inflate the tire and proceed on the route
  4. reduce speed and continue the route

Explanation

A sidewall bulge indicates internal tire damage and a high risk of a blowout, especially with a loaded bus. The vehicle must be placed out of service and the tire replaced before it carries students.

Question 24Vehicle Inspection and Basic Control

When checking the bus's lighting system before a run, the driver should verify that:

  1. the interior lights are brighter than the headlights
  2. headlights, brake lights, turn signals, and warning lights all function Correct answer.
  3. only the headlights work, since other lights are optional
  4. the warning lights stay off during the entire route

Explanation

All exterior and warning lights must function so the driver can signal intentions and be seen, and so the bus can warn traffic when loading students. A failed warning light is a safety defect.

Question 25Vehicle Inspection and Basic Control

A school bus driver must cross a narrow bridge with a reduced weight limit on a route. The safest action is to:

  1. cross and check the limit afterward
  2. assume the limit applies only to trucks
  3. cross at high speed to minimize time on the bridge
  4. verify the loaded bus weight is within the posted limit before crossing Correct answer.

Explanation

Posted weight limits are based on the structure's capacity, and an overloaded bus could damage the bridge or cause a failure. The driver should confirm the loaded weight is within the limit before proceeding.

Question 26Vehicle Inspection and Basic Control

During the pre-trip inspection of a school bus, the driver should check the emergency exits to confirm that:

  1. the exits open freely from the inside and the warning buzzer sounds when they are opened Correct answer.
  2. the exit handles are painted the same color as the bus interior
  3. the exits remain sealed until the driver completes the route
  4. the exits are locked with a padlock to prevent tampering by students

Explanation

Emergency exits must open easily from inside without tools, and the audible warning tells the driver when an exit is not fully latched. A locked or hard-to-open exit can trap passengers during an evacuation.

Question 27Vehicle Inspection and Basic Control

A school bus driver is starting the engine during the pre-trip inspection and notices the low-air-pressure warning does not come on. The correct action is to:

  1. pump the brake pedal several times to build pressure
  2. ignore it because the warning is only needed on long routes
  3. place the bus out of service and report the defect Correct answer.
  4. continue the run but listen for the buzzer while driving

Explanation

The low-air warning is a required safety device on air-brake buses; if it fails to activate during the check, the bus is not safe for service. The driver should tag it and report the defect rather than drive it.

Question 28Vehicle Inspection and Basic Control

When checking the bus's mirrors before departure, the driver should adjust them primarily so that the driver can see:

  1. the sky above the bus for overhead obstructions
  2. the sides of the bus and the danger zone around the front and rear Correct answer.
  3. the driver's own face for a mirror self-check
  4. only the rear bumper of the bus

Explanation

Mirrors are set to show the sides of the bus plus the areas alongside and behind it where students may be hidden. This coverage lets the driver monitor the danger zone before moving.

Question 29Vehicle Inspection and Basic Control

During the pre-trip inspection, a driver finds the bus's stop arm does not extend fully when tested. The driver should:

  1. continue the route and note the defect at the end of the day
  2. use hand signals in place of the stop arm
  3. report the defect and take the bus out of service until repaired Correct answer.
  4. operate the stop arm manually at each stop

Explanation

The stop arm is required equipment for protecting students during loading and unloading. A stop arm that does not extend fully is a safety defect that must be repaired before the bus carries students.

Question 30Vehicle Inspection and Basic Control

When performing a pre-trip inspection of the bus's tires, the driver should check tread depth and also look for:

  1. the brand name molded into the sidewall
  2. the color of the valve stem caps
  3. cuts, cracks, bulges, and objects lodged between dual tires Correct answer.
  4. the date the tires were last rotated

Explanation

Tread depth alone does not reveal structural damage; cuts, cracks, bulges, and debris between duals can cause a blowout. Catching these during the walk-around prevents a failure on the road.

Question 31Vehicle Inspection and Basic Control

A driver is checking the bus's fluids during the pre-trip inspection and finds the coolant level below the minimum mark. The appropriate response is to:

  1. top off the coolant to the proper level before departure Correct answer.
  2. add water only and continue the route
  3. start the route and check the level at the first stop
  4. run the engine at high idle to warm the coolant

Explanation

Low coolant can lead to overheating and engine damage, so it must be brought to the correct level before the bus leaves. Checking and correcting fluids is a standard part of the pre-trip inspection.

Question 32Vehicle Inspection and Basic Control

Before moving the bus from the parking area at the start of a run, the driver should perform a brake check that includes:

  1. checking that the service brake holds the bus when the pedal is applied Correct answer.
  2. testing the parking brake only while the bus is rolling
  3. relying on the air pressure gauge alone without applying the brakes
  4. releasing the parking brake before starting the engine

Explanation

A brake check confirms that the service brake can hold the bus before it enters traffic. The driver applies the brake and verifies the bus does not move, along with checking air pressure buildup.

Question 33Vehicle Inspection and Basic Control

When the driver uses the crossover mirrors during the pre-trip inspection, the purpose is to confirm that the driver can see:

  1. the roofline of the bus
  2. the interior of the bus behind the driver's seat
  3. the rear wheels of the bus only
  4. the area directly beneath the windshield and in front of the bus Correct answer.

Explanation

Crossover mirrors reveal the blind spot directly in front of the bus where a small child could stand unseen. Adjusting them properly is essential before moving from a stop.

Question 34Vehicle Inspection and Basic Control

During the pre-trip inspection, the driver should test the bus's horn and confirm that it:

  1. can be heard clearly and operates without the key in the ignition
  2. produces a loud, clear sound that can be heard by other drivers Correct answer.
  3. plays a musical tone to alert students
  4. sounds only when the bus is in motion

Explanation

The horn is a required warning device and must produce a loud, clear sound audible to other road users. A weak or silent horn removes a key way to warn others of danger.

Question 35Vehicle Inspection and Basic Control

A driver completes the pre-trip inspection and finds the bus's left turn signal does not flash. The driver should:

  1. report the defect and keep the bus out of service until it is fixed Correct answer.
  2. flash the headlights instead of signaling
  3. continue the route because the right signal still works
  4. use hand signals for all left turns on the route

Explanation

All required lights, including turn signals, must function before the bus carries students. A failed signal is a defect that must be reported and repaired, not worked around.

Question 36Vehicle Inspection and Basic Control

During the pre-trip inspection, the driver checks the bus's emergency equipment and confirms that the fire extinguisher is:

  1. locked in a compartment behind the rear seats
  2. empty so it can be refilled at the end of the route
  3. stored in the driver's personal bag
  4. fully charged, mounted securely, and within reach Correct answer.

Explanation

A fire extinguisher must be charged, secured in its bracket, and accessible so the driver can reach it quickly. An empty, loose, or out-of-reach extinguisher is useless in an emergency.

Question 37Vehicle Inspection and Basic Control

A driver is inspecting the bus's steering during the pre-trip check and notices excessive free play in the steering wheel. The driver should:

  1. accept it because school buses have naturally loose steering
  2. inflate the front tires to reduce the free play
  3. report the defect and remove the bus from service until inspected Correct answer.
  4. compensate by steering more slowly on the route

Explanation

Excessive steering free play can indicate worn steering components and reduces the driver's control of the bus. It is a defect that requires inspection and repair before the bus is used.

Question 38Vehicle Inspection and Basic Control

When checking the bus's air brake system during the pre-trip inspection, the driver should verify that air pressure builds to the governed level and then:

  1. stops building once the engine is warm
  2. drops quickly when the engine is shut off
  3. holds steady without the warning buzzer sounding Correct answer.
  4. continues to climb past the maximum gauge reading

Explanation

The system should build to its governed pressure and hold there without triggering the low-pressure warning. Rapid pressure loss or an active warning indicates a leak or fault.

Question 39Vehicle Inspection and Basic Control

A driver is about to begin a route and notices the bus's windshield wipers leave large streaks during the pre-trip test. The driver should:

  1. replace the wiper blades or report the defect before driving in rain Correct answer.
  2. run the wipers faster to clear the streaks
  3. use the defroster to compensate for poor wipers
  4. accept the streaks because wipers are only a comfort item

Explanation

Wipers that streak impair the driver's view in rain, which is a safety defect on a passenger vehicle. The blades should be replaced or the defect reported before the bus operates in wet weather.

Question 40Vehicle Inspection and Basic Control

During the pre-trip inspection, the driver checks the bus's rear emergency door and finds it opens but the warning buzzer does not sound. The driver should:

  1. disable the buzzer on the other exits to match
  2. tape the door shut to prevent accidental opening
  3. treat the missing buzzer as a defect and report it before the run Correct answer.
  4. consider the exit safe because the door opens

Explanation

The buzzer alerts the driver whenever an emergency exit is unlatched, which is critical for student safety. A silent buzzer is a defect that must be reported and repaired before service.

Question 41Loading and Unloading Students

Under Ohio school bus rules, when should the driver activate the red flashing lights and stop arm during a student stop?

  1. After the bus has fully stopped and the door is already open
  2. Only when another vehicle is visibly approaching from behind
  3. Only after the last student has stepped off the bus
  4. As the bus approaches the stop, before students load or unload Correct answer.

Explanation

The red lights and stop arm are warning devices that must be operating before students are exposed to traffic. They are activated as the bus approaches the designated stop so approaching motorists have time to stop. Waiting until the door is open or students are already moving gives drivers too little warning.

Question 42Loading and Unloading Students

A school bus driver is preparing to unload students at a stop where students must cross the roadway. What must the driver do before signaling students to cross?

  1. Wave the students across while remaining seated and facing forward
  2. Make sure traffic in both directions has stopped and the driver remains visible Correct answer.
  3. Sound the horn twice to alert traffic
  4. Step off the bus and walk students across

Explanation

The driver must confirm that traffic in both directions has come to a stop before releasing students to cross. The driver also stays in position so students can see a hand signal and know it is safe. Releasing students before traffic stops is the leading cause of loading-zone fatalities.

Question 43Loading and Unloading Students

When students must cross the road after exiting the bus, how far in front of the bus should they walk?

  1. Directly alongside the bus door
  2. Behind the bus so the driver can watch them in the mirror
  3. At least ten feet ahead of the bus, within the driver's view Correct answer.
  4. Anywhere they choose as long as they hurry

Explanation

Students should move at least ten feet in front of the bus so the driver can see them and they stay outside the danger zone near the wheels. Walking in front also keeps them clear of passing traffic that may not stop. The driver watches them until they are safely across.

Question 44Loading and Unloading Students

What is the proper procedure for a driver when a student drops an object near the bus after exiting?

  1. Instruct the student to leave the object and move to a safe place, and the driver retrieves it later if possible Correct answer.
  2. Back the bus up so the object can be reached
  3. Tell the student to retrieve it only if the driver is watching
  4. Allow the student to pick it up quickly if traffic is light

Explanation

Students should never return to the danger zone around the bus to retrieve dropped items. The driver should direct them to safety and handle retrieval only when it can be done without exposing anyone to risk. Backing the bus near students is also prohibited in most situations.

Question 45Loading and Unloading Students

Before putting the school bus in motion after loading students, the driver must do which of the following?

  1. Honk to signal departure
  2. Release the parking brake before closing the door
  3. Turn off the red warning lights while the door is still open
  4. Wait for the students to be seated and confirm they are accounted for Correct answer.

Explanation

Students must be seated and accounted for before the bus moves. The driver confirms the count and closes the door, then deactivates the warning lights and proceeds. Moving before students are seated risks falls and injuries.

Question 46Loading and Unloading Students

A driver is loading students at a stop on a divided highway with a raised median. How should the driver handle students who would need to cross the roadway?

  1. Arrange the stop so no student crosses the roadway, using a different stop if necessary Correct answer.
  2. Have them cross the median to reach the bus
  3. Require them to cross only after the driver signals
  4. Let them cross alone if they are older students

Explanation

Ohio rules discourage requiring students to cross a roadway at stops on divided highways with medians. The safest practice is to route the stop so students board on their own side of the road. If that is not possible, the stop location should be changed.

Question 47Loading and Unloading Students

What does the danger zone around a school bus refer to?

  1. The area ten feet in front of and behind the bus and along its sides where students are hard to see Correct answer.
  2. The area inside the bus where students sit
  3. The lane behind the bus used by following traffic
  4. The distance required to stop the bus at highway speed

Explanation

The danger zone is the area immediately surrounding the bus, roughly ten feet in every direction, where students are most vulnerable and least visible to the driver. Drivers must account for every student in this zone before moving. Keeping students out of it is the core of safe loading and unloading.

Question 48Loading and Unloading Students

When a driver must count students during unloading, what is the recommended method?

  1. Count only the students who cross the road
  2. Count only after the bus has pulled away from the stop
  3. Count students as they exit and confirm the count matches the number who boarded Correct answer.
  4. Rely on the students to report whether anyone is missing

Explanation

The driver should count students as they exit and verify the number against the boarding count. This confirms that no student remains on the bus or is unaccounted for. Counting only after departure is too late to catch a problem.

Question 49Loading and Unloading Students

A driver is approaching a stop where several young students are waiting. What is the correct action regarding the stop arm?

  1. Extend the stop arm only if a car is behind the bus
  2. Extend the stop arm as part of the stop sequence before students move toward the bus Correct answer.
  3. Extend the stop arm after the door opens
  4. Keep the stop arm retracted to avoid delaying traffic

Explanation

The stop arm is part of the standard warning sequence and must be extended before students approach the bus. It signals motorists in both directions to stop. Delaying the arm or leaving it retracted endangers students.

Question 50Loading and Unloading Students

What should the driver do if a student is missing during the unloading count?

  1. Search the bus immediately and do not move the bus until the student is found Correct answer.
  2. Assume the student got off at an earlier stop
  3. Ask the remaining students to search the bus
  4. Continue the route and check at the next stop

Explanation

A missing student may still be on the bus, possibly asleep or trapped. The driver must stop, secure the bus, and search it before proceeding. Leaving the stop without resolving the discrepancy risks a fatality from heat or an unnoticed student.