Component
VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:AIR HANDLER/CHAMBER, DUCTS, AND VALVES
17 NHTSA complaints about visibility:defroster/defogger/hvac system:air handler/chamber, ducts, and valves issues across 7 makes and 9 models.
The visibility:defroster/defogger/hvac system:air handler/chamber, ducts, and valves is one of the standardized component categories NHTSA uses to classify consumer safety complaints. Across the public complaint database, it accounts for 17 filings from 7 manufacturers and 9 distinct vehicle models, a footprint large enough that defect engineers can isolate part-family patterns across different platforms that share the same supplier or the same federal motor vehicle safety standard.
Among filings citing this component, owners have reported 0 crashes, 0 fires, 1 injury, and 0 fatalities. The most complained-about vehicle in this category is the FORD RANGER with 7 filings, followed by FORD F-150 and MERCEDES-BENZ CLK350. These severity counters are what separates a nuisance complaint trend from a pattern NHTSA is likely to escalate into a Preliminary Evaluation.
Component-level analysis is how the Office of Defects Investigation spots cross-manufacturer supplier issues — the same airbag inflator, the same takata-style ignition switch, the same brake hose material — before they become industry-wide recalls. When you see a single component accumulating large complaint volume across several unrelated nameplates, that is usually a signature of a shared supplier or a shared federal standard being stressed by real-world conditions. Use the affected-vehicles table below to see whether the pattern is concentrated on a handful of models or distributed evenly, and cross-reference each model's full recall and investigation history before drawing conclusions about any one nameplate.
Most Affected Vehicles
| # | Vehicle | Complaints |
|---|---|---|
| 1 | FORD RANGER | 7 |
| 2 | FORD F-150 | 3 |
| 3 | MERCEDES-BENZ CLK350 | 1 |
| 4 | LEXUS IS | 1 |
| 5 | HYUNDAI SONATA | 1 |
| 6 | FORD ESCAPE | 1 |
| 7 | FISKER OCEAN | 1 |
| 8 | DODGE RAM 2500 | 1 |
| 9 | CHEVROLET CAMARO | 1 |
Recent Complaints
Lexus had a recall for a faulty servo motor back in 2021. The recall work was performed; however, the same issue is happening again. The airflow on the âhead onlyâ setting comes out extremely low
The contact owns a 2018 Ford F-150. The contact stated that while operating the vehicle with the air conditioner activated, condensation leaked inside the front passengerâs side of the vehicle from
The contact owns a 2013 Hyundai Sonata. The contact stated that all the rear row seat belts did not buckle as intended and water would leak from the front passenger side air conditioner. The local dea
The air vents do not function, the fan can be heard but no air comes out of the vents in the dash
The contact owns a 2015 Chevrolet Camaro. The contact stated that the heater and A/C were inoperable. There was no heat and no cold air. The contact stated that sometimes the wrong temperature was dis
The ac fan is blowing but no air is coming out looked on line there are a lot of people with same problem but when you cut the truck off and restart it the ac works fine his problem only occurs vari
the blower in my Truck seems to be malfunctioning. while the AC or heater will turn it when first started, approx. 20 minutes into driving and it quits blowing. you can hear it blowing but nothing com
Vehicle has 51,532 miles and a blend door actuator needs to be replaced - inconsistent air flow coming in. The desired air wanted whether it be hot or cold, is being diverted incorrectly, so we are no
With high outside temperatures A/C unit was on, but only the heating system was working. Air Conditioning system was not functuning and heating system would not go off. With windows down, inside tempe
In May of 2022 at approximatley 46,000 miles a family members 2019 Ford Ranger had the A/C unit on, but VERY hot air was blowing on drivers side. After inspection and Pin Point Test the Ford Dealershi
This is the second time I'm hearing the climate control system click before i can adjust the temperature gauge. It was replaced less than 1,000 miles ago and it already broke again. You already put no
The contact owns a 2019 Ford Ranger. The contact stated that while driving at an undisclosed speed, the vehicle made an abnormal cracking sound, and then the heating system became inoperable. The cont
The contact owns a 2019 Ford Ranger. The contact stated while driving 40 MPH with the heating system activated, the contact heard an abnormal sound coming from the vents. The contact stated that both
The actuator motor is not working. This is a common complaint of the 2019 Ford Ranger and is noted in Ford's SSM 49264. Certainly a service bulletin identifying a need to replace the entire climate
The contact owns a 2009 Mercedes - Benz CLK350. The contact stated he turned on the air condition of his vehicle and an odor of mold came from the vents. The vehicle was taken to the dealer and stated
The contact owns a 2008 Dodge Ram 2500. The contact stated while exiting out of the garage, the windshield defroster was activated and there was a loud clicking sound coming from the HVAC system. The
The contact owns a 2020 Ford Escape. The contact stated while driving at 65-70 MPH, water started leaking from the air conditioner onto the brake and accelerator pedals and his foot. The vehicle was t
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Frequently Asked Questions
How many complaints involve visibility:defroster/defogger/hvac system:air handler/chamber, ducts, and valves issues? ▼
How dangerous are visibility:defroster/defogger/hvac system:air handler/chamber, ducts, and valves defects? ▼
Which vehicles have the most visibility:defroster/defogger/hvac system:air handler/chamber, ducts, and valves problems? ▼
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Data Sources
Vehicle complaint data from the National Highway Traffic Safety Administration (NHTSA) complaints database. Includes consumer-reported safety issues filed with NHTSA Office of Defects Investigation. Severity counts cross-reference NHTSA FARS (Fatality Analysis Reporting System) for fatal incidents where a corresponding FARS record exists.
Component categories are standardized by NHTSA. Crash-test ratings where shown are drawn from the NHTSA New Car Assessment Program (NCAP). Complaint counts, crash reports, fire reports, and fatality data reflect consumer-submitted reports and may not represent all incidents.
Disclaimer: This data is for informational purposes only and should not be used as the sole basis for vehicle purchase decisions. NHTSA complaint data is self-reported by consumers and has not been verified or investigated. A high complaint count does not necessarily indicate a defect. Always consult a qualified mechanic and check official NHTSA recall notices before making safety-related decisions.
Read our methodology — how this data is sourced, computed, and verified.