Presentation on theme: "Unit 9: Sharing the Road and Handling Emergencies"— Presentation transcript:
1 Unit 9: Sharing the Road and Handling Emergencies Vehicle MalfunctionsNV Driver Education CurriculumUnit 9: Sharing the Road and Handling EmergenciesPresentation 3 of 5TOPICS:Steering, Brake, and Tire FailureEngine Failure & Vehicle FireLoss of Forward Vision
2 Most vehicle malfunction can be prevented with proper maintenance. Pay attention to warning lightsMaintain fluid levelsCheck tire pressureDash image from:Tire image from:Fluid image from:Retrieved 09/02/11
3 Warning Lights & Gauges Warning alert lights:When vehicle is first turned on, all lights illuminateOnce engine is running, all should go out** If light stays on it needs attention**Warning gauges:Engine temperatureOil pressureChargingLights image from:Gauges image from:
4 What to Do if Vehicle Fails Be prepared for emergenciesSteer safely off the roadBe visible when stoppedRaise hood, tie something white to antenna or hang out windowCall for helpRemain buckled in the carLock vehicle doorsFemale image from:Triangle image from:Retrieved 09/02/11
5 Be Visible When Stopped Set out flares or warning devices100 and 200 feet increments behind carOn Undivided HighwaysOn Divided HighwaysImages from: AAA How to Drive Textbook 14th edition 2009Retrieved 09/02/11Recommended placement of emergency-warning devices
6 Vehicle FailuresThere is always a possibility that your vehicle may malfunction.The most serious failure affect:SteeringBrakingEngineSteering image from:Freeway image from:Fire image from:Retrieved 09/02/11
7 Steering problems should not be solved on the road while driving. Steering FailureSteering problems should not be solved on the road while driving.Slow down immediatelyUse flashers to warn othersIf power steering fails, you will have to work extremely hard to steer the vehicle, but full control will not be lost.Image from:Retrieved 09/02/11Drivers can usually identify problems, “loose” or difficult steering before a complete failure occurs.
8 Never adjust or move the key ignition while the vehicle is in motion. Steering Wheel LocksNever adjust or move the key ignition while the vehicle is in motion.If the steering wheel were to lock, slow down the vehicle as quickly as possible by whatever means to avoid losing control.Ignition image from:Steering image from:Retrieved 09/02/11
9 Most common causes of brake failure are wet and overheated brakes. Rear and front wheels each have a brake system.If total brake failure:Pump the foot brake pedal (with power brakes not effective)Downshift to lower gearApply parking brakeSearch for safe place to steerImage from:Retrieved 09/02/11
10 Brake FadeApplying brakes hard over a long period (i.e. driving down hills) overheats brakes, causing them to fade.Temporary brake failureLess effectiveStop vehicle to allow brakes to coolUse lower gears to help prevent brake fadeSign image from:Road image from:Retrieved 09/02/11
11 Driving through water can temporarily reduce brakes’ effectiveness Wet BrakesDriving through water can temporarily reduce brakes’ effectivenessDrive slowly in puddlesGently apply brakes as you drive though waterFriction will generate heatTest brakes as leave waterRiding the brake will dry brakes (left foot lightly on brake, as right foot slowly accelerates)Black car image from:Flooded image from:Retrieved 09/02/11
12 Stuck Accelerator If accelerator is stuck: Attempt to jar it free Use toe to lift pedalStep on pedal repeatedlyApply brakesShift into Neutral (to remove power from the wheels)Turn the off vehicle (last resort) will lose power steeringAccelerator image from:Gear image from:Ignition image from:Retrieved 09/02/11
13 Engine Failure Usually little warning when engine sputters or stops If engine stops suddenly:Shift into NeutralMove out of trafficTurn on flashersDo not brakeTry to re-start the engineGauge image from:Males image from:Retrieved 09/02/11
14 Stalled on Railroad Tracks If a train is approaching:Abandon vehicle ImmediatelyRun at a 45-degree angle away from the tracks, towards the oncoming train (to avoid being hit by debris when the train collides with your vehicle).If not approaching:Try restarting your vehicleShift into Neutral and push vehicle off tracksImage from:Retrieved 09/02/11A train traveling at 55 mph may travel more than one mile after applying the emergency brakes.
15 Overheated EngineWhen the temperature gauge indicates an overheated vehicle:Use heater to draw heat away from engine if you cannot pull off the road immediately.Turn off air conditioningDuring stops, shift to Neutral and press accelerator gentlyPullover, turn off engineOpen the hood of the car to cool engineGauge image from:Car image from:Retrieved 09/02/11
16 Engine FiresMost engine fires are caused by either an electrical or fuel problem.Handle quickly and properly:Get your car off the roadTurn off the engineMove away from the vehicleAt least 100 feet awayDo not open hoodImage from:Retrieved 09/02/11If fire is in rear of the vehicle, very hazardous, gas tank may explode.
17 Tire WearTires wear quicker with poor maintenance and road conditions:Under or over inflatedUnbalanced wheelsPoor alignmentAbrupt brakingSharp steeringBumps and potholesDash image from:Pothole image from:Retrieved 09/02/11
18 Tire Blowout A blowout occurs when a tire suddenly loses air pressure Tire hits object in road or a potholeDriver fails to maintain proper tire pressureTire image from:Silver car image from:Retrieved 09/02/11
19 What to Do - Tire Blowout Front tire blow outVehicle quickly pulls in direction of blowoutBack tire blow outRear end will slide around or “fishtail”What to do:Hold steering wheel firmlyEase off acceleratorDo not brakeLook and steer to safety, off the roadRed car image from:Blue car image from:Accident image from:Retrieved 09/02/11Tire blow out causes accident
20 Changing a TireChanging a tire on a roadway is dangerous and can be risky.Find a safe place, completely off the roadCall for help Professionals know bestIf you change the tire, use proper tools and safety precautionsTriangle image from:Family image from:Retrieved 09/02/11
21 Loss of Forward Vision Loss of forward vision may be caused by: Headlight failureHood flies openLook though side windowPull over immediatelyWindshield splashed with dirtTurn on wipersScreaming image from:Dirty image from:Retrieved 09/02/11
22 Headlights FailureIf your headlights flicker or fail take immediate actionTurning on the parking lights, emergency lights, or hazardsUse turn right turn signal and move to the shoulder of the roadCheck fuses or fuse clipsImage from:Fuse image from:Retrieved 09/02/11