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moderate 20 complaints filed with NHTSA · avg repair $350 · see visibility across all vehicles →
Of the 4 model years of Ford Bronco Sport we track for visibility problems, this one carries the most owner complaints on file — 20.
No new NHTSA visibility complaint has been filed on this vehicle in over 4 years — the issue may be aging out of the active population.
A detached glass panel can become a road hazard, and increase the risk of a crash or injury.
Buyer takeaway: The 2021 Bronco Sport has a documented pattern of windshield fragility, sunroof/glass failures, and climate-control design issues that owners report with unusual frequency. Before purchasing used, inspect all glass for cracks, verify sunroof operation and seals, and test climate control in humid conditions.
Windshield failure is the dominant complaint across this cluster. Owners report stress fractures appearing spontaneously while vehicles sit parked, and cracks spreading rapidly from minor impacts—gravel, small stones, even a light bump against glass. Multiple owners state the glass appears thinner than typical and describe replacements on back order due to sheer volume of failures. One owner had the windshield replaced three times before warranty expired; another experienced a passenger window shattering at 2,500 miles when a child's arm bumped it.
Sunroof and glass problems appear in multiple forms: spontaneous explosions while parked, failure to close or seal properly, inward bending under vibration, and water leakage into the cabin. One sunroof exploded at highway speed with an audible boom.
Climate control design frustrates owners in humid conditions. The system automatically activates air conditioning based on a humidity sensor, cooling the windshield until external condensation forms and fogs the glass—with no manual AC override except killing the entire climate system. This creates a distraction and safety issue, particularly during early morning drives.
Additional glass and weatherproofing failures include a detached rear windshield lever (33,000 miles), melted mirror housings from sun exposure (5,500 miles), washer fluid leaking through the front camera, and condensation dripping from the sunroof area onto the floorboard with accompanying odor.
Windshields crack from minor impact (small stones, gravel, light bumps) or develop stress fractures while parked with no apparent cause. Multiple owners report cracks spreading rapidly and appearing spontaneously. Owners allege glass is thinner than industry standard, making it prone to fracture.
When: 2,500 to 65,000 miles; occurs within days of purchase to mid-vehicle life
Symptoms owners cite: Cracks originating at lower corners and edges, spreading vertically across windshield; Spontaneous cracks appearing overnight or while parked; Rapid crack propagation after minor contact; Windshield fracturing from light object strike (small gravel, rocks); Passenger-side window shattering from bumping arm against glass
Repairs/costs cited: Windshield replacement by insurance, dealer, or glass specialist. Owners report replacements are on back order due to high failure frequency. One replacement done without dealer coverage after warranty expired.
Recalls/TSBs owners mention: Manufacturer referred complaints to NHTSA Hotline. Campaign 21V809000 cited for visibility but affected VINs not included in recall.
Rear windshield lever assembly detaches when opened, leaving the rear window unable to close. Owner improvised a bungee cord temporary fix.
When: 33,000 miles
Symptoms owners cite: Lever detached from vehicle when attempting to open rear windshield; Rear windshield unable to close after lever failure
Repairs/costs cited: Dealer informed contact that liftgate windshield assembly replacement needed. Vehicle out of warranty; repair not completed.
Recalls/TSBs owners mention: Manufacturer referred complaint to NHTSA Hotline.
Sunroofs fail to close properly, allow rainwater leakage into cabin, or explode spontaneously. One owner reports loud booming noise and glass flying from sunroof at highway speed (60 mph); another reports spontaneous explosion while parked.
When: 20,000 to 65,000 miles
Symptoms owners cite: Loud booming or abnormal vibrating sound from sunroof; Sunroof fails to close properly or bends inward; Rainwater entering cabin during weather; Glass flying from sunroof during driving; Sunroof exploding spontaneously while parked
Repairs/costs cited: One sunroof glass temporarily secured with duct tape and repaired by independent mechanic (cost not stated). Another vehicle not diagnosed or repaired.
Recalls/TSBs owners mention: Manufacturer referred one complaint to NHTSA (Campaign 21V809000); another complaint noted owner could not contact manufacturer for assistance. One owner's VIN not included in recall.
Automatic climate control activates air conditioning based on humidity sensor input, cooling the windshield. When exterior humidity is high and windshield is cold, external condensation forms and fogs the glass. No manual override available except shutting off climate control entirely. Temperature cycling (AC on/off) creates distraction and safety concern.
When: Occurs 10 minutes into early morning drive in high-humidity conditions (60–70°F with dew/fog)
Symptoms owners cite: Windshield fogs on outside surface from AC cooling during high-humidity conditions; AC turns on automatically with no indicator light (only cold air noticed); No way to disable AC without shutting off entire climate control; Unpredictable temperature cycling from vents (cold to hot repeatedly); Wiper effectiveness reduced on externally fogged glass; Distracting condition for driver
Repairs/costs cited: Dealer verified humidity sensor is source of automatic AC activation. No repair documented.
Exterior mirror housings (driver and passenger side) melt or warp due to sunlight exposure. Failure occurs at low mileage in normal parked conditions.
When: 5,500 miles
Symptoms owners cite: Mirror housing material melting or warping; Sunlight exposure causing material degradation
Repairs/costs cited: Repair not covered under warranty per dealer and manufacturer correspondence.
Recalls/TSBs owners mention: Manufacturer denied warranty coverage in writing. Contact referred to NHTSA Hotline.
Washer fluid leaks from front-facing camera assembly mounted on windshield, triggering washer fluid warning light. Occurs repeatedly.
When: Unknown mileage
Symptoms owners cite: Washer fluid leaking from front camera housing; Windshield fluid warning light illuminated; Failure occurring on multiple occasions
Repairs/costs cited: Vehicle towed to dealer but cause not identified; repair not completed.
Recalls/TSBs owners mention: Manufacturer notified.
Cold condensation from sunroof area drips onto passenger's right leg and floorboard, creating smell of rotting fish (likely mold or mildew). Condensation line design appears defective, allowing interior leakage rather than external drainage.
When: 63,450 miles
Symptoms owners cite: Cold condensation dripping onto right leg of occupant; Floorboard developing odor of rotting fish; Condensation line leaking inside vehicle instead of outside
Repairs/costs cited: Not diagnosed or repaired.
Synthesized from 20 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
The windshield developed a crack down the center of the windshield starting at the top of the glass. There is no apparent indication that crack is due to an object hitting it.
The contact owns a 2021 Ford Bronco Sport. The contact stated while the vehicle was parked, the windshield washer fluid was leaking out of the front camera. The windshield fluid warning light was illuminated. The failure occurred on several occasions. The vehicle was towed to a dealer to be diagnosed; however, the dealer informed the contact that a cause for the failure was not found. The vehicle…
It's a documented issue but not catastrophic. 20 complaints have been filed. Repairs average $350 and most owners catch it before it causes a breakdown.
Across the 11 complaints that reported odometer mileage, most visibility failures cluster between 10,000 and 42,000 miles, with the median around 33,000. A quarter of owners report trouble before 10,000; a quarter make it past 42,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
Independent shops typically charge around $350 for visibility repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Yes — 1 active recall(s) cover visibility issues on this vehicle. Recall fixes are always free regardless of mileage or warranty status. Use the VIN decoder at the top of the page to check if your specific vehicle is affected.