2023 FORD BRONCO cooling

HILL DESCENT CONTROL – TROUBLESHOOTING
HILL DESCENT CONTROL – INFORMATION MESSAGES
DetailsMessage
Displays when you deactivate hill descentcontrol mode.Hill Descent Control OFF
Displays when the speed exceeds 20 mph(32 km/h) and hill descent control isunavailable.
For Hill Descent Reduce Speed
Displays when Cruise Control is Active anddriver attempts to turn on hill descentcontrol.
Hill Descent Control Not Available WithCruise Control Active
Displays when the hill descent controlmode requires you to resume control.Hill Descent Driver Resume Control
Displays when a hill descent system faultis present.Hill Descent Control Fault
Displays when the hill descent control turnsoff to cool the brake system.Hill Descent Control Off System Cooling
Displays when you activate the hill descentcontrol mode.Hill Descent Control Ready
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2023 Bronco (TG1) Canada/United States of America, enUSA, Edition date: 202208, DOMHill Descent Control - Manual Transmission

When towing a trailer:
•Obey country specific regulations fortowing a trailer.
•Do not drive faster than 70 mph(113 km/h) during the first 500 mi(800 km).
•Do not make full-throttle starts.
•Check your hitch, electrical connectionsand trailer wheel lug nuts thoroughlyafter you have traveled 50 mi (80 km).
•Place the transmission in neutral (N)when stopped in congested or heavytraffic during hot weather. This will aidin engine and transmission cooling andto help A/C performance.
•Turn off the speed control with heavyloads or in hilly terrain. The speedcontrol may turn off when you aretowing on long, steep slopes.
•Shift to a lower gear when driving downa long or steep hill. Do not continuouslyapply the brakes, as they may overheatand become less effective.
•If your transmission has Grade Assistor Tow/Haul, use this feature whentowing. This provides engine brakingand helps eliminate excessivetransmission shifting for optimum fueleconomy and transmission cooling.
•Your vehicle has AdvanceTrac with rollstability control. When towing a trailer,additional loads could cause theAdvanceTrac system to engage duringcornering maneuvers. Reduce corneringspeeds to make sure that you canmaintain control of the vehicle andtrailer if the AdvanceTrac systemengages.
•Allow more distance for stopping witha trailer attached. Anticipate stops andgradually brake.
•Avoid parking on a slope. However, ifyou must park on a slope. Turn thesteering wheel to point your vehicletires away from traffic flow. Set yourvehicle parking brake. Place thetransmission in a low gear. Place wheelchocks in front and back of the trailerwheels.
Note:Chocks are not included with yourvehicle.
TRAILER TOWING HINTS -
AUTOMATIC TRANSMISSION
Towing a trailer places an extra load onyour vehicle's engine, transmission, axle,brakes, tires and suspension. Periodicallyinspect these components during and afterany towing operation.
When driving with a trailer or payload, aslight takeoff vibration or shudder may bepresent due to the increased payloadweight.
Your vehicle may have a temporary orconventional spare tire. A temporary sparetire is different in diameter or width,tread-type, or is from a differentmanufacturer than the road tires on yourvehicle. Consult information on the tirelabel or Safety Compliance label forlimitations when using.
When towing a trailer:
•Obey country specific regulations fortowing a trailer.
•Do not drive faster than 70 mph(113 km/h) during the first 500 mi(800 km).
•Do not make full-throttle starts.
•Check your hitch, electrical connectionsand trailer wheel lug nuts thoroughlyafter you have traveled 50 mi (80 km).
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2023 Bronco (TG1) Canada/United States of America, enUSA, Edition date: 202208, DOMTowing a Trailer

•When stopped in congested or heavytraffic during hot weather, place thetransmission in park (P) to aid engineand transmission cooling and to helpA/C performance.
•Turn off the speed control with heavyloads or in hilly terrain. The speedcontrol may turn off when you aretowing on long, steep slopes.
•Shift to a lower gear when driving downa long or steep hill. Do not continuouslyapply the brakes, as they may overheatand become less effective.
•If your transmission has Grade Assistor Tow/Haul, use this feature whentowing. This provides engine brakingand helps eliminate excessivetransmission shifting for optimum fueleconomy and transmission cooling.
•Your vehicle has AdvanceTrac with rollstability control. When towing a trailer,additional loads could cause theAdvanceTrac system to engage duringcornering maneuvers. Reduce corneringspeeds to make sure that you canmaintain control of the vehicle andtrailer if the AdvanceTrac systemengages.
•Allow more distance for stopping witha trailer attached. Anticipate stops andgradually brake.
•Avoid parking on a slope. However, ifyou must park on a slope, turn thesteering wheel to point your vehicletires away from traffic flow, set theparking brake, place the transmissionin park (P) and place wheel chocks infront and back of the trailer wheels.
Note:Chocks are not included with yourvehicle.
LAUNCHING OR RETRIEVING
A BOAT OR PERSONAL
WATERCRAFT
When backing down a ramp during boatlaunching or retrieval:
•Do not allow the static water level torise above the bottom edge of the rearbumper.
•Do not allow waves to break higherthan 6 in (15 cm) above the bottomedge of the rear bumper.
Exceeding 6 in (15 cm) could allow waterto enter vehicle components, causinginternal damage to the components andaffecting driveability, emissions andreliability.
Note:Replace the rear axle lubricantanytime the rear axle has been submergedin water.
Note:Disconnect the trailer wiringconnector before backing the trailer into thewater.
Note:Reconnect the trailer wiringconnector after removing the trailer fromthe water.
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2023 Bronco (TG1) Canada/United States of America, enUSA, Edition date: 202208, DOMTowing a Trailer

Muddy waters can reduce the coolingsystem effectiveness by depositing debrisinto the radiator.
Extra care must be taken crossing any typeof water. Do not drive into water unlessnecessary. You should only drive throughareas that are designated and approved.
High currents even in shallow water canwash the dirt out from around your tires orpush your vehicle across slippery rocks orsurfaces.
Never attempt to cross flowing water thatis deeper than your vehicles groundclearance. Even in low currents yourvehicles body surface area can be pusheddownstream and out of control.
Do not cross any body of water that is fastflowing and rising, wait for the flow rate toreduce.
Determine exit points that are downstreamof your entry point to allow for drifting.
If there are other vehicles ahead, wait untilthey’ve left the water. Unsettled water canmake a safe passage more challenging.
Know your vehicle’s abilities and be ableto recover it if something goes wrong.
Keep the doors fully closed during a watercrossing.
Vehicles used to traverse water regularlyshould be periodically inspected for signsof water ingestion in all of the vehicle'sfluids. If water is found inside your vehiclefluids, service your vehicle or see anauthorized dealer.
After driving through water and as soon asit is safe to do so, check the brakes, horn,lights, and steering wheel to make sureeverything is still in working order.
Avoid Getting High-Centered
Always keep available ground clearancein mind and pick a route that minimizes therisk of catching the underside of the vehicleon an obstacle and getting high-centered.
Freeing A Stuck Vehicle
WARNING: Do not spin the wheelsat over 34 mph (55 km/h). The tires mayfail and injure a passenger or bystander.
Recovery hooks are mounted to thevehicle's structure and are used to pull outthe vehicle from a surface or location whenstuck. Recover your vehicle using varioustowing apparatus attached to yourrecovery hook such as winch, open hook,or strap.
Note:Do not use recovery hooks torecreationally tow your vehicle. SeeRecreationally Towing Your Vehicle (page338).
If your vehicle gets stuck in mud or snow,you may rock it out by shifting betweenforward and reverse gears, stoppingbetween shifts in a steady pattern. Pressthe accelerator in each gear.
Note: Do not rock your vehicle if the engineis not at normal operating temperaturedamage to the transmission may occur.
Note:Do not rock your vehicle for morethan a minute damage to the transmissionand tires may occur or the engine mayoverheat.
If you are unable to free your vehicle callroadside assistance. See RoadsideAssistance (page 328).
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2023 Bronco (TG1) Canada/United States of America, enUSA, Edition date: 202208, DOMDriving Hints

Use this when driving over large obstacles,such as rocks or logs, to help maintain aconstant vehicle speed.
In 4H, the system offers lift pedal brakingand auto hill hold functionality. See WhatIs Trail One Pedal Drive (page 223).
Note:Trail one pedal drive is only availablewhen the vehicle is in 4H or 4L.
Using Trail Turn Assist
The feature reduces the turn radius of thevehicle on off-road surfaces.
The system reduces driver effort tonegotiate difficult off-road terrain byallowing the vehicle to make a tight turnin a single maneuver that might otherwiserequire a three point turn. See Trail TurnAssist (page 227).
Note:Trail turn assist is only available whenthe vehicle is in 4H or 4L.
Note:Trail turn assist cannot activate if therear differential is locked.
What Are Rock Rails (If Equipped)
Rock rails protect the rocker and body sidefrom damage and provide a sliding surfaceto allow the vehicle to cross boulders androck ledges.
Rock rails also can act as a pivot point tosharply turn the vehicle in tight spaces withhigh walls or rocks present.
AFTER DRIVING YOUR VEHICLEOFF-ROAD
WARNING: After off-road use,before returning to the road, check thewheels and tires for damage. Off-roaduse may cause damage to your wheelsand tires that can lead to tire failure, lossof vehicle control, serious injury or death.
Driving off-road places more stress on yourvehicle than most on-road driving. Afterdriving off-road, check for damage to thewheels, chassis and underbody.
Inspect the underbody of your vehicle bychecking tires, body structure, steering,suspension, and exhaust system fordamage.
Inspect the tires for any cuts in the treador sidewall area. Also inspect the sidewallfor any bulge indicating damage to the tire.
Make sure the tires are inflated to propertire pressure as indicated on the tireplacard.
Check the radiator for mud and debris andclean as needed.
Check that the air filter is clean and dry.
Remove accumulations of plants or brush.These things could be a fire hazard or hidedamage to the fuel lines, brake hoses andpropeller shafts.
Make sure the grille and radiator are clearof any obstructions that may affectcooling.
After extended operation in mud, sand,water, or similar dirty conditions, inspectthe wipers and washers to make sure theyare working.
Note:Mud caked windows are hard to seethrough and can damage wiper blades ormotor.
Check wipers for debris or anything thatmay scratch the windshield.
If you experience unusual vibration afterdriving in mud, slush or similar conditions,check the wheels for impacted material.Impacted material can cause vibrationswhen driving and wheel imbalance.Remove the material to reduce thevibration.
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2023 Bronco (TG1) Canada/United States of America, enUSA, Edition date: 202208, DOMDriving Hints

RESETTING THE INTELLIGENT OILLIFE MONITOR
Use the instrument cluster display controlson the steering wheel to reset the oilchange reminder.
From the main menu scroll to:
Action and DescriptionMessage
Press the right arrow button,then from this menu scrollto the following message.
Settings
Press the right arrow button,then from this menu scrollto the following message.
VehicleMainten-ance
Press the right arrow button,then from this menu scrollto the following message.
Oil LifeReset
Press and hold the OKbutton until the instrumentcluster displays thefollowing message.
Hold OK toReset
Reset Successful
When the oil changereminder resets the instru-ment cluster displays 100%.
Remaining Life
{00}%
If the instrument clusterdisplays one of the followingmessages, repeat theprocess.
Not Reset
Reset Cancelled
ENGINE OIL CAPACITY ANDSPECIFICATION
For filling information, please refer to theCapacities and Specifications section ofyour owner's manual. See Engine OilCapacity and Specification (page 467).
CHECKING THE COOLANT
When the engine is cold, check theconcentration and level of the coolant atthe intervals listed in the scheduledmaintenance information. See ScheduledMaintenance (page 528).
Note:Make sure that the coolant level isbetween the minimum and maximum markson the coolant reservoir.
Note: Coolant expands when it is hot. Thelevel may extend beyond the MAX mark.
If the coolant level is at or below theminimum mark, add prediluted coolantimmediately.
Maintain coolant concentration within48% to 50%, which equates to a freezepoint between -29°F (-34°C) and -35°F(-37°C). Coolant concentration should bechecked using a refractometer. We do notrecommend the use of hydrometers orcoolant test strips for measuring coolantconcentration.
Adding Coolant
WARNING: Keep your hands andclothing clear of the cooling fan.
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2023 Bronco (TG1) Canada/United States of America, enUSA, Edition date: 202208, DOMMaintenance

WARNING: Do not remove thecoolant reservoir cap when the engine ison or the cooling system is hot. Wait 10minutes for the cooling system to cooldown. Cover the coolant reservoir capwith a thick cloth to prevent thepossibility of scalding and slowly removethe cap. Failure to follow this instructioncould result in personal injury.
WARNING: Do not add coolantwhen the vehicle is on or the coolingsystem is hot. Failure to follow thisinstruction could result in personal injury.
WARNING: Do not add coolantfurther than the MAX mark.
WARNING: Do not put coolant inthe windshield washer reservoir. Ifsprayed on the windshield, coolant couldmake it difficult to see through thewindshield.
WARNING: Do not allow the fluidto touch your skin or eyes. If thishappens, rinse the affected areasimmediately with plenty of water andcontact your physician.
Note: Do not use stop leak pellets, coolingsystem sealants, or non-specified additivesas they can cause damage to the enginecooling or heating systems. Resultingcomponent damage may not be covered bythe vehicle Warranty.
Note:Automotive fluids are notinterchangeable.
It is very important to use predilutedcoolant approved to the correctspecification in order to avoid plugging thesmall passageways in the engine coolingsystem. See Capacities andSpecifications (page 461). Do not mixdifferent colors or types of coolant in yourvehicle. Mixing of engine coolants or usingan incorrect coolant may harm the engineor cooling system components and couldvoid the vehicle Warranty.
Note:If prediluted coolant is not available,use the approved concentrated coolantdiluting it to 50/50 with deionized ordistilled water. See Capacities andSpecifications (page 461). Using water thathas not been deionized may contribute todeposit formation, corrosion and pluggingof the small cooling system passageways.
To top up the coolant level do thefollowing:
1.Unscrew the cap slowly. Any pressureescapes as you unscrew the cap.
2.Add enough prediluted coolant toreach the correct level.
Note:We do not recommend the use ofrecycled coolant.
3.Replace the coolant reservoir cap. Turnthe cap clockwise until it contacts thehard stop.
4.Check the coolant level in the coolantreservoir the next few times you driveyour vehicle. If necessary, repeat step2.
If you have to add more than 1.1 qt (1 L) ofengine coolant per month, have yourvehicle checked as soon as possible.Operating an engine with a low level ofcoolant can result in engine overheatingand possible engine damage.
In case of emergency, you can add a largeamount of water without engine coolantin order to reach a vehicle service location.Service your vehicle as soon as possible.
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2023 Bronco (TG1) Canada/United States of America, enUSA, Edition date: 202208, DOMMaintenance

Water alone, without engine coolant, cancause engine damage from corrosion,overheating or freezing.
Do not use the following as a coolantsubstitute, as they can cause enginedamage from overheating or freezing:
•Alcohol.
•Methanol.
•Brine.
•Any coolant mixed with alcohol ormethanol antifreeze.
Do not add extra inhibitors or additives tothe coolant. These can be harmful andcompromise the corrosion protection ofthe coolant.
Severe Climates
If you drive in extremely cold climates, youmay need to increase the coolantconcentration above 50%.
Note:A coolant concentration of 60%provides improved freeze point protection.Coolant concentrations above 60%decrease the overheat protectioncharacteristics of the coolant and couldcause engine damage.
If you drive in extremely hot climates, youmay need to decrease the coolantconcentration to 40%.
Note:A coolant concentration of 40%provides improved overheat protection.Coolant concentrations below 40%decrease the overheat and corrosionprotection characteristics of the coolant andcould cause engine damage.
Coolant Change
WARNING: Do not dispose ofcoolant in the household refuse or thepublic sewage system. Use an authorizedwaste disposal facility.
Change the coolant at specific mileageintervals. Refer to the scheduledmaintenance information. See NormalScheduled Maintenance (page 531).
Note:Dispose of used coolant in theappropriate manner.
Follow your community's regulations andstandards for recycling and disposing ofautomotive fluids.
Fail-Safe Cooling
Fail-safe cooling allows you to temporarilydrive your vehicle before any incrementalcomponent damage occurs. The fail-safedistance depends on ambienttemperature, vehicle load and terrain.
How Fail-Safe Cooling Works
WARNING: If you continue to driveyour vehicle when the engine isoverheating, the engine could stopwithout warning. Failure to follow thisinstruction could result in the loss ofcontrol of your vehicle.
If the engine begins to overheat,the coolant temperature gaugemoves toward the red zone:
A warning lamp illuminates anda message may appear in theinformation display.
If the engine reaches a presetover-temperature condition, the engineautomatically switches to alternatingcylinder operation. Each disabled cylinderacts as an air pump and cools the engine.
When this occurs, your vehicle stilloperates, however:
•Engine power is limited.
•The air conditioning system turns off.
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2023 Bronco (TG1) Canada/United States of America, enUSA, Edition date: 202208, DOMMaintenanceE103308 E67028