Ford Bronco Problems: 12 Issues Every Owner Should Know
2021-2025 model years · Based on 461,617+ owner reports · Last updated March 2026
According to Au7o's analysis of 461,617+ owner reports, the 2021-2025 Ford Bronco has 12 documented known issues, with 4 rated critical by the Au7o research team. The most serious are Loss of Drive Power Due to 12V Battery Detection Failure - Recall 24S24 ($0-$0 repair), 2.7L EcoBoost Intake Valve Failure ($0-$0 repair), 1.5L EcoBoost 3-Cylinder Coolant Loss and Engine Failure ($0-$7,500 repair) and 2.3L EcoBoost Oil Galley Plug Defect ($0-$0 repair). The most commonly reported issue is Loss of Drive Power Due to 12V Battery Detection Failure - Recall 24S24 with 456,000 owner reports. Across all issues, repair costs range from $0 to $7,500. Full technical analysis and DIY maintenance guides at au7o.io.
All 12 Known Issues
The 2.7L EcoBoost V6 engine may experience catastrophic intake valve failure at low mileage. The valve head separates from the stem and drops into the cylinder, causing immediate loss of compression and potential catastrophic engine damage. Root cause identified as defective intake valves made from 'Silchrome Lite' alloy.
Common Symptoms
- Sudden loss of engine power at highway speeds
- Engine will not restart after stalling
- Check engine light illumination
- Unusual engine knocking or rattling sounds
- Complete engine failure under 10,000 miles
How to Fix
Check if VIN is affected by recall 24S55. Dealers perform engine cycle test under recall. Free engine replacement if valve defect detected. Extended warranty coverage: 10 years / 150,000 miles on affected engines.
What Owners Are Using
Parts and tips from 567+ owners who fixed this issue
- NoteThis is a high-severity issue - ignoring it can lead to costly repairs or safety concerns. Address it promptly.
- TipGet a proper diagnosis before replacing parts - similar symptoms can have different causes
- TipSearch Ford Bronco forums and owner groups for real-world experiences and DIY guides
- TipGet multiple quotes from independent mechanics - dealer prices can be 2-3x higher for the same repair
The 1.5L EcoBoost 3-cylinder engine in 2021-2024 Ford Bronco Sport is the latest variant of Ford's troubled EcoBoost coolant intrusion problem. The open-deck block design allows coolant to leak internally into the cylinders, causing misfires, white exhaust smoke, and complete engine failure. Ford issued TSB 25-2063 in February 2025 addressing coolant loss in 2021-2024 Bronco Sport 1.5L models, recommending a coolant system flush to prevent recurrent water pump failures. Ford also extended warranty coverage to 7 years/84,000 miles for short block replacement due to coolant intrusion. BroncoSportForum.com documents numerous cases including owners stranded with brand-new vehicles. NHTSA opened an investigation into EcoBoost engine failures in October 2023 covering multiple Ford models.
Common Symptoms
- White exhaust smoke on startup, especially after cold soak
- Engine misfires and rough idle
- Coolant level dropping without visible external leak
- Check engine light with misfire codes P0300-P0303
- Sweet smell from exhaust
- Engine overheating
- Water pump failure (TSB 25-2063 related)
- Complete engine failure in severe cases
How to Fix
Ford extended warranty: 7 years/84,000 miles for short block replacement due to coolant intrusion to cylinder bores (no-cost one-time repair). TSB 25-2063 addresses water pump failures linked to coolant contamination. Check fordowner.com with VIN. If experiencing symptoms, do not drive - contact Ford roadside assistance. NHTSA investigation reference: PE23-018.
What Owners Are Using
Parts and tips from 520+ owners who fixed this issue
- NoteFord provides a free one-time short block replacement for coolant intrusion under extended warranty (7yr/84k). Check fordowner.com with your VIN BEFORE taking your Bronco Sport to a dealer for any engine complaint. Do NOT let a dealer charge you for this known warranty issue.
- NoteIf your 2021-2024 Bronco Sport 1.5L shows white exhaust smoke or coolant loss, STOP DRIVING and call Ford Roadside Assistance (1-800-241-3673). Continuing to drive with coolant in cylinders can hydrolock the engine in minutes - turning a warranty repair into a non-warranty totaled engine.
- TipTSB 25-2063 (Feb 2025) specifically addresses water pump failures from coolant contamination. If your pump has failed, this TSB may cover a free coolant flush. Ask your dealer about this TSB explicitly. NHTSA investigation PE23-018 covers EcoBoost engine failures across multiple Ford models.
Certain 2023 Broncos with the 2.3L EcoBoost engine have an improperly sealed main oil galley plug due to a machining tool error during manufacturing. This defect can cause oil leaks leading to oil starvation, engine failure, and potential fire risk.
Common Symptoms
- Oil leak underneath vehicle
- Low oil pressure warning
- Oil puddles in parking spots
- Burning oil smell
- Engine knocking due to oil starvation
How to Fix
Check eligibility under Customer Satisfaction Program 23B08. Free engine replacement for affected vehicles. Program valid until March 31, 2024 with no mileage limit.
What Owners Are Using
Parts and tips from 234+ owners who fixed this issue
- NoteThis is a high-severity issue - ignoring it can lead to costly repairs or safety concerns. Address it promptly.
- TipGet a proper diagnosis before replacing parts - similar symptoms can have different causes
- TipSearch Ford Bronco forums and owner groups for real-world experiences and DIY guides
- TipGet multiple quotes from independent mechanics - dealer prices can be 2-3x higher for the same repair
The 2021-2025 Ford Bronco Sport with the 1.5L EcoBoost 3-cylinder engine experiences oil dilution from unburned fuel washing past the piston rings into the crankcase, particularly during short trips and cold weather driving. The 3-cylinder configuration with direct injection runs richer during cold starts, and the fuel does not fully combust before reaching the cylinder walls. This causes the oil level to rise above the full mark on the dipstick, the oil to smell strongly of gasoline, and accelerated oil breakdown that can lead to premature engine wear. BroncoSportForum.com documents numerous cases of owners finding their oil level above the full mark with a strong fuel odor. Ford has not issued a formal recall but TSBs reference monitoring oil dilution levels. This issue is related to but distinct from the coolant intrusion problem.
Common Symptoms
- Oil level rises above the full mark on dipstick
- Oil smells strongly of gasoline
- Oil appears thin and watery on dipstick
- Reduced oil pressure (oil pressure warning in severe cases)
- Increased fuel consumption
- Check engine light in severe cases
- Rough idle during cold starts
How to Fix
No permanent fix available from Ford. Mitigation: change oil every 3,000-5,000 miles instead of the factory-recommended 7,500-10,000 mile interval. Use full synthetic 5W-30 meeting Ford spec WSS-M2C961-A1. Monitor oil level monthly - if rising above the full mark with fuel odor, change oil immediately. For owners who primarily make short trips in cold weather, consider an engine block heater to reduce cold-start enrichment. This issue is inherent to the 3-cylinder direct injection design and is more pronounced in cold climates.
What Owners Are Using
Parts and tips from 920+ owners who fixed this issue
- TipCheck your oil level monthly on the 1.5L Bronco Sport. If the oil level is ABOVE the full mark and smells like gas, change the oil immediately regardless of the oil life monitor reading. Shorten your change intervals to 5,000 miles maximum if you do mostly short trips.
- NoteDo NOT rely on the oil life monitor in cold climates with short-trip driving. The monitor does not account for fuel dilution. Oil diluted with gasoline loses its lubricating properties and can cause premature engine wear. Check the dipstick - if it smells like gas, change it.
Ford Safety Recall 24S24 (NHTSA 24V267) covers 2021-2024 Bronco Sport and 2022-2023 Maverick for a software defect in the Body Control Module (BCM) and Powertrain Control Module (PCM). The software cannot detect decreasing 12-volt battery performance and cannot compensate accordingly. This causes two safety scenarios: (1) The vehicle cannot restart while using Auto Start-Stop Technology because the weakened battery cannot start the engine after a stop, and (2) The vehicle stalls or loses drive power at low speeds. Additionally, when the vehicle stalls, 12-volt accessories including lights and air conditioning may be lost simultaneously, increasing crash risk. Ford's fix is a free software update.
Common Symptoms
- Vehicle stalls at low speeds or when coming to a stop
- Engine does not restart after Auto Start-Stop activates
- Loss of interior lights and accessories when stalling
- Air conditioning cuts out unexpectedly
- "Remote Access disabled to reserve battery" alert in FordPass app
- Battery warning light
- No-start condition
How to Fix
Ford Safety Recall 24S24 - free software update at any Ford dealer for BCM and PCM. Takes approximately 1-2 hours. Check fordowner.com or safercar.gov with VIN for recall status. If experiencing stalling or no-restart issues before recall service: disable Auto Start-Stop feature (button typically near shifter). Replace 12V battery if it is weak or over 3 years old as preventive measure.
What Owners Are Using
Parts and tips from 456,000+ owners who fixed this issue
- NoteRecall 24S24 is a SAFETY recall affecting 456,000 vehicles. Get the free BCM/PCM software update at your Ford dealer ASAP. A vehicle stalling at low speed with simultaneous loss of lights and accessories is a serious crash risk.
- TipWhile waiting for the recall to be serviced, disable the Auto Start-Stop feature (button with "A" and circular arrow near the shifter). This prevents the battery detection software from causing a no-restart situation. The vehicle will remember this setting each drive.
- TipIf your Bronco Sport has the original battery and is 3+ years old, replace the 12V battery proactively even after the recall software update. The software fix helps detect a weak battery, but replacing a failing battery is the underlying prevention.
The smart windshield wiper motor, which senses blade load on the glass, malfunctions during rain causing wipers to slow down, operate intermittently, or stop entirely. Built-in protection features may incorrectly trigger, reducing wiper speed even when conditions require full operation.
Common Symptoms
- Wipers slowing down unexpectedly during rain
- Intermittent wiper operation
- Wipers stopping mid-cycle
- Reduced wiper sweep area
- Wipers not responding to speed adjustments
How to Fix
Reference SSM for smart wiper motor operation. Ensure windshield is clean and free of residue. Check wiper blade condition and replace if worn. Software update if available. Wiper motor replacement in severe cases.
What Owners Are Using
Parts and tips from 234+ owners who fixed this issue
- TipGet a proper diagnosis before replacing parts - similar symptoms can have different causes
- TipSearch Ford Bronco forums and owner groups for real-world experiences and DIY guides
- TipGet multiple quotes from independent mechanics - dealer prices can be 2-3x higher for the same repair
The Molded-In-Color (MIC) hardtop exhibits surface crazing, snakeskin patterns, delamination, and cracking. Issues include peeling headliner, warping around mounting bolts, rattling, and water leaks. Ford acknowledged the issue and implemented Customer Satisfaction Program 21B49.
Common Symptoms
- Snakeskin or spider web pattern appearing on hardtop surface
- White discoloration or crazing on top panels
- Peeling or sagging interior headliner
- Warping around mounting bolt locations
- Water leaks during rain
How to Fix
Check eligibility under Customer Satisfaction Program 21B49. Free replacement with MIC 2.0 hardtop under warranty. Discounted replacement at approximately $2,000 if out of warranty. Apply silicone lubricant to seals to reduce noise and minor leaks.
What Owners Are Using
Parts and tips from 678+ owners who fixed this issue
- TipGet a proper diagnosis before replacing parts - similar symptoms can have different causes
- TipSearch Ford Bronco forums and owner groups for real-world experiences and DIY guides
- TipGet multiple quotes from independent mechanics - dealer prices can be 2-3x higher for the same repair
The soft top experiences adhesive failure causing interior panels to sag, separate from the frame, and delaminate. Heat exposure accelerates adhesive melting, particularly at front corners.
Common Symptoms
- Interior headliner sagging or falling down
- Soft top separating from header panel (latch area)
- Stringy adhesive residue when opening top
- Edges of panels coming unglued
- Water leaks at separation points
How to Fix
Reference TSB 23-2024 for adhesive repair procedure. Dealer application of 3M adhesion promoter. Complete soft top replacement under warranty for severe cases. Aftermarket re-gluing with appropriate adhesive.
What Owners Are Using
Parts and tips from 345+ owners who fixed this issue
- TipConsider OEM parts for critical components like sensors and electrical parts - aftermarket can be unreliable
- TipGet a proper diagnosis before replacing parts - similar symptoms can have different causes
- TipSearch Ford Bronco forums and owner groups for real-world experiences and DIY guides
- TipGet multiple quotes from independent mechanics - dealer prices can be 2-3x higher for the same repair
Hardtop equipped Broncos experience water intrusion during rain or car washes. Common leak points include the seal along the back of T-tops, door seals, A-pillar areas, and where removable midsection connects to the rear portion.
Common Symptoms
- Water dripping from upper airbag compartment area
- Water running down A-pillars
- Wet carpet or floor mats after rain
- Leaks from rear cross bar seal area
- Water intrusion around removable panel connections
How to Fix
Dealer hardtop realignment and adjustment. Clean and lubricate all seals with silicone lubricant. Remove front panels, clean seals, apply silicone gasket lubricant before reinstalling. Check and replace damaged or worn seals.
What Owners Are Using
Parts and tips from 567+ owners who fixed this issue
- TipGet a proper diagnosis before replacing parts - similar symptoms can have different causes
- TipSearch Ford Bronco forums and owner groups for real-world experiences and DIY guides
- TipGet multiple quotes from independent mechanics - dealer prices can be 2-3x higher for the same repair
AWD-equipped 2021-2024 Ford Bronco Sport models exhibit rear drive unit (RDU) chatter and shudder during low-speed turning maneuvers, particularly when backing up and turning sharply. The issue is caused by fluid contamination in the rear drive unit's limited-slip clutch pack. Ford issued SSM 49571 (Special Service Message) documenting the condition as "chatter/shudder during low speed turning events." Multiple TSBs have been released addressing the issue, with the prescribed fix involving draining and refilling the RDU fluid, then performing specific drive cycles with controlled turns. No formal NHTSA recall has been issued for this defect. BroncoSportForum.com has an extended thread specifically about new rear axle assembly replacements covered under this TSM.
Common Symptoms
- Grinding, chattering, or shuddering from rear of vehicle during slow-speed turns
- Noise most pronounced when backing up while turning
- Shudder felt through seat and floor during parking maneuvers
- Vibration during low-speed cornering in parking lots
- Noise may decrease after extended driving but returns
How to Fix
Ford SSM 49571 procedure: drain and refill rear drive unit (RDU) with correct specified fluid, then perform 5+ miles of stop-and-go driving with alternating left and right turns. Use Ford-specified RDU fluid only (Motorcraft SAE 80W-90 Premium Rear Axle Lubricant XY-80W90-QL or Ford Spec WSS-M2C197-A). If fluid change does not resolve, rear axle assembly replacement under warranty. Some cases require 2-3 fluid changes to fully resolve.
What Owners Are Using
Parts and tips from 640+ owners who fixed this issue
- TipFord SSM 49571 is the service message covering this shudder. First fix is a RDU fluid drain/refill - a dealer should do this under warranty if within the basic warranty period. The correct fluid is Motorcraft SAE 80W-90 Premium Rear Axle Lubricant (XY-80W90-QL). Do not let dealer use incorrect fluid.
- TipAfter the dealer does the RDU fluid service, you need to "break in" the fluid with the specific drive cycle: drive 5+ miles at low speed (15-25 mph) making multiple slow left and right turns. This distributes the new friction modifier throughout the clutch pack. Do not just drive on the highway straight home.
- TipSome owners have needed 2-3 RDU fluid changes before the shudder fully resolves. If first change does not fully eliminate the chatter, request a second service. Persistent cases may require rear axle assembly replacement - this has been covered under warranty per multiple forum reports.
The Getrag MT88 7-speed manual transmission exhibits rotational scraping or grinding noises, particularly in cold temperatures below 50°F. The noise occurs in neutral, 1st, and 2nd gears with clutch engaged and may diminish as transmission warms up. Issue traced to 5th and 6th gear synchronizer rings.
Common Symptoms
- Rotational scraping noise when cold
- Grinding sound in neutral, 1st, or 2nd gear
- Noise diminishes as transmission warms up
- Noise occurs with clutch pedal engaged
How to Fix
Reference TSB for 5th/6th gear synchronizer ring replacement. Complete transmission replacement in severe cases. Some dealers have backordered parts - may require patience.
What Owners Are Using
Parts and tips from 456+ owners who fixed this issue
- TipGet a proper diagnosis before replacing parts - similar symptoms can have different causes
- TipSearch Ford Bronco forums and owner groups for real-world experiences and DIY guides
- TipGet multiple quotes from independent mechanics - dealer prices can be 2-3x higher for the same repair
The 10R60 automatic transmission may exhibit harsh or delayed engagement when shifting, particularly from park to reverse when cold. Some vehicles skip gears during deceleration around 28 mph causing lurching.
Common Symptoms
- Harsh engagement from park to reverse (especially when cold)
- Delayed shift response
- Lurching or clunking during gear changes
- Transmission skipping gears during deceleration
How to Fix
Reference TSB 23-2352 for harsh/delayed shifting software update. Check recall status for park pawl issue (build dates 11/14/22 - 01/12/23). Transmission software recalibration at dealer. Fluid level and condition inspection.
What Owners Are Using
Parts and tips from 456+ owners who fixed this issue
- TipGet a proper diagnosis before replacing parts - similar symptoms can have different causes
- TipSearch Ford Bronco forums and owner groups for real-world experiences and DIY guides
- TipGet multiple quotes from independent mechanics - dealer prices can be 2-3x higher for the same repair
Frequently Asked Questions
What are the most common Ford Bronco problems?
According to Au7o's analysis of 461,617+ owner reports, the 2021-2025 Ford Bronco has 12 documented issues. The most frequently reported are: Loss of Drive Power Due to 12V Battery Detection Failure - Recall 24S24, 2.7L EcoBoost Intake Valve Failure, 1.5L EcoBoost 3-Cylinder Coolant Loss and Engine Failure. Of these, 4 are rated critical and should be addressed promptly.
Is the Ford Bronco reliable?
The 2021-2025 Ford Bronco has 12 known issues documented across 461,617+ owner reports. 4 issues are rated critical: Loss of Drive Power Due to 12V Battery Detection Failure - Recall 24S24 and 2.7L EcoBoost Intake Valve Failure and 1.5L EcoBoost 3-Cylinder Coolant Loss and Engine Failure and 2.3L EcoBoost Oil Galley Plug Defect. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Ford Bronco problems?
Repair costs for known Ford Bronco issues range from $0 to $7,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Loss of Drive Power Due to 12V Battery Detection Failure - Recall 24S24, typically costs $0-$0 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What year Ford Bronco is the most reliable?
Reliability varies across model years of the Ford Bronco. Based on owner reports, issues are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2021-2025 Ford Bronco with 12 documented issues from 461,617+ owner reports.
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