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2017 Ford Explorer

Owner reports · Recalls · Investigations

More warning signs than most Explorer years

Owner complaints for the 2017 Ford Explorer are substantially higher than the model-year median of 609.

About this comparison →

When problems were reported

Mileage at the reported incident

849 reports with mileage · 841 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Structure. Review the 655 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 237 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 123 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

34 crash reports11 fire reports36 injury reports

Structure complaints

655 reports
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Mileage unknown · Mar 10, 2023
Structure

A-post (passenger side) trim because detached at high speed, striking another car.

NHTSA ODI #11511123

Mileage unknown · Mar 9, 2023
Structure

I was driving on the interstate highway- I-20 in Alabama going eastbound at approx. 70 mph. Suddenly, the driver's side windshield trim moulding blew off without any warning. Mileage was 51,278. The safety issue is that this trim moulding is approx. 18 inches long - 4 inches wide which may have hit another vehicle as it departe…

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I was driving on the interstate highway- I-20 in Alabama going eastbound at approx. 70 mph. Suddenly, the driver's side windshield trim moulding blew off without any warning. Mileage was 51,278. The safety issue is that this trim moulding is approx. 18 inches long - 4 inches wide which may have hit another vehicle as it departed my vehicle at highway speeds. I further read that approx. 170 Ford Explorer owners have also reported the identical issue, so I wanted the goverment to be aware that this occurred and hopefully there is a full recall. The dealer wants $650 to replace this moulding.

NHTSA ODI #11511031

48,120 miles · Mar 7, 2023
Structure

The contact owns a 2017 Ford Explorer. The contact stated that while driving at various speeds, an abnormal knocking sound was coming from the windshield. Upon inspection, the contact discovered that the front, passenger side windshield trim panel was cracked in several places. The contact called the dealer about the failure and…

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The contact owns a 2017 Ford Explorer. The contact stated that while driving at various speeds, an abnormal knocking sound was coming from the windshield. Upon inspection, the contact discovered that the front, passenger side windshield trim panel was cracked in several places. The contact called the dealer about the failure and was provided an estimate for the repair. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was 48,120.

NHTSA ODI #11510542

Mileage unknown · Feb 26, 2023
Structure

Traveling at Highway speed (70mph) on level road without unusual road conditions is clear daytime weather, the drivers side windshield pillar trim separated from the vehicle, and the drivers side mid pillar trim loosened, but did not separate. No other vehicle damage occurred. The vehicle had been purchased from a Dealer in B…

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Traveling at Highway speed (70mph) on level road without unusual road conditions is clear daytime weather, the drivers side windshield pillar trim separated from the vehicle, and the drivers side mid pillar trim loosened, but did not separate. No other vehicle damage occurred. The vehicle had been purchased from a Dealer in Bowie Tx, 15 minutes before the incident. The dealer has agreed to repair the damage.

NHTSA ODI #11509149

Mileage unknown · Feb 25, 2023
Structure

At highway speed the Windshield-Outer Trim Molding Pillar Driver Left Side departed the vehicle. I saw something flicker by but did not know what it was until I stopped and saw the missing trim piece.

NHTSA ODI #11509068

Mileage unknown · Feb 21, 2023
Structure

While driving on the interstate the second day that we had the car, bought it used the right side window A pillar trim came off the car and landed on the interstate and broke in pieces. Several cars behind us had to swerve to keep from hitting the parts. Could have caused a very bad accident as there was a lot of cars on the roa…

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While driving on the interstate the second day that we had the car, bought it used the right side window A pillar trim came off the car and landed on the interstate and broke in pieces. Several cars behind us had to swerve to keep from hitting the parts. Could have caused a very bad accident as there was a lot of cars on the road. I see that this a major issue with the Explorers and should be recalled due to safety.

NHTSA ODI #11508283

Mileage unknown · Feb 19, 2023
Structure

"A" pillar window trim fails to remain affixed to the vehicle. After just a year of new vehicle ownership, on at least 15 different occasions, my passenger side "A" window trim or driver's side window trim would fly off while in travel. This usually occurs on the highway at any speeds exceeding 40 mph. I feel that this creates…

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"A" pillar window trim fails to remain affixed to the vehicle. After just a year of new vehicle ownership, on at least 15 different occasions, my passenger side "A" window trim or driver's side window trim would fly off while in travel. This usually occurs on the highway at any speeds exceeding 40 mph. I feel that this creates a safety issue and a financial burden as the piece and sometimes the mounting bracket have to be purchased at each incident. The safety issues are a somewhat large part of the vehicle separates and goes flying into any following traffic. The separation from the vehicle is usually a noisy and distracting affair for the operator/driver. Further, following traffic has to avoid the now airborne part. An additional safety concern is the missing part exposes the edges of the windshield, possibly affecting the integrity of the windshield, not to mention little protection from rain, water or snow. Lastly, the missing part creates a very unsightly vehicle. Attached are pictures of my vehicle without the part and my 2023-2022 eBay purchases. The document shows 6 replacements/purchases in just over a one year period. I have purchased both very expensive OEM parts and after market parts, with the same unfortunate results. I am not an engineer, but it appears that poor design allows 45+ mph wind to get under the trim, forcing it away and off the windshield pillar. Please, consult with any 2011-2019 Ford Explorer owner and I'm sure they have a similar story. I make a habit of looking at other Ford Explorers on the road and at least half the affected years vehicles are missing the windshield trim. I'm not one that complains frequently, but this is ridiculous and potentially dangerous.

NHTSA ODI #11508082

Mileage unknown · Feb 15, 2023
Structure

piller moldings between the front and rear windows became loose and one came off. this creates a hazard to other vehicles on the road. we had them replaced by Earnhardt ford in Chandler AZ on 2/10 2023. .

NHTSA ODI #11507489

Mileage unknown · Feb 9, 2023
Structure

Wind pulled the ‘A’ pillar trim off the vehicle, breaking g the plastic trim and rubber gasket. This is a know problem that FORD has not issued a recall on, but should.

NHTSA ODI #11506515

Mileage unknown · Feb 9, 2023
Structure

Traveling west on I90 out of Boston a piece of the bodywork (plastic trim sealing the windshield) on the passenger side of the car tore away and flew into the path of vehicles behind. The car has been inspected and repaired by a Ford dealer to the expense of $250 parts and labor. I have filed a complaint with Ford. They simply s…

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Traveling west on I90 out of Boston a piece of the bodywork (plastic trim sealing the windshield) on the passenger side of the car tore away and flew into the path of vehicles behind. The car has been inspected and repaired by a Ford dealer to the expense of $250 parts and labor. I have filed a complaint with Ford. They simply said that they would not pay for the damage. Nevertheless, this should not be happening. The bodywork should not failing while driving. No police or insurance representatives have been involved. And there was no indication this would happen prior to the incident on Thursday, January 26, 2023.

NHTSA ODI #11506376

Official recalls

13

26V448000 · Structure:body

Jul 14, 2026

Ford Motor Company (Ford) is recalling certain 2016-2019 Explorer vehicles. The roof rail covers may come loose and detach from the vehicle.

Consequence & remedy

Consequence: A detached roof rail cover can create a road hazard, increasing the risk of a crash.

Remedy: Dealers will inspect the roof rail covers and as necessary, repair or replace the push-pins, rail clips, or roof rail covers, free of charge. Interim letters, notifying owners of the safety risk, were mailed August 28, 2026. Additional letters will be sent once the remedy is available, anticipated in January 2027. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 26S54. This recall expands previous NHTSA recall number 21V316. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on July 16, 2026.

26V101000 · Suspension:rear

Feb 20, 2026

Ford Motor Company (Ford) is recalling certain 2017-2019 Explorer vehicles. The rear suspension toe links may fracture.

Consequence & remedy

Consequence: A rear toe link fracture can result in a loss of steering control, increasing the risk of a crash.

Remedy: Dealers will replace the toe links, free of charge. Owner notification letters were mailed on March 16, 2026. Owners may contact Ford Customer Service at 1-866-436-7332. Ford's number for this recall is 26S08. This recall is an expansion of previous NHTSA recall number 21V537. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning February 25, 2026.

25V685000 · Equipment:electrical:engine Block Heater

Oct 10, 2025

Ford Motor Company (Ford) is recalling certain 2016-2019 Lincoln MKC, 2016-2023 Explorer, 2019-2020 Fusion, 2019-2024 Ranger, 2020-2022 Lincoln Corsair, Escape, 2021-2024 Bronco, Bronco Sport, and 2022-2024 Maverick vehicles. The engine block heater may crack and develop a coolant leak, causing it to short circuit when the block heater is plugged in.

Consequence & remedy

Consequence: An electrical short circuit can increase the risk of a fire.

Remedy: Owners are advised not to plug in their block heater until the vehicle is remedied. Dealers will replace the block heater, free of charge. Owners will also have a alternative option to replace engine block heater element with a threaded blanking plug, and remove the block heater electrical cord. Interim letters, notifying owners of the safety risk, were mailed December 3, 2025. Additional letters will be sent once the final remedy is available, anticipated September 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25SA4. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on October 15, 2025.

25V347000 · Structure:body

May 23, 2025

Ford Motor Company (Ford) is recalling certain 2016-2017 Explorer vehicles. The driver and front passenger B-Pillar door trim may detach while driving.

Consequence & remedy

Consequence: Door trim that detaches while driving can create a road hazard, increasing the risk of a crash.

Remedy: Dealers will repair the B-pillar trim, free of charge. Interim letters, notifying owners of the safety risk, were mailed June 5, 2025. A second notice will be sent once the final remedy is available, anticipated November 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25S53.

24V031000 · Structure:body:roof And Pillars

Jan 19, 2024

Ford Motor Company (Ford) is recalling certain 2011-2019 Explorer vehicles. The A-pillar trim retention clips may not be properly engaged, allowing the trim to detach.

Consequence & remedy

Consequence: A detached trim piece can fall off the vehicle, becoming a road hazard and increasing the risk of a crash.

Remedy: Dealers will inspect and replace the A-pillar trim as necessary, free of charge. This will be a phased campaign, with the remedy becoming available in different phases based on model years. Owner notification letters were mailed between July 18, 2024 and December 16, 2025. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 24S02.

21V537000 · Suspension:rear

Jul 15, 2021

Ford Motor Company (Ford) is recalling certain 2013-2017 Explorer vehicles originally sold, or ever registered, in Connecticut, Delaware, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, Wisconsin, and the District of Columbia. Exposure to road salt can cause the cross-axis ball joint to corrode and seize, resulting in a fracture of the outboard section of the rear suspension toe link.

Consequence & remedy

Consequence: A rear toe-link fracture can result in a loss of steering control, increasing the risk of a crash.

Remedy: Dealers will inspect and replace as necessary, the cross-axis ball joint (CABJ) knuckle, and replace the rear suspension toe links, free of charge. This recall is an expansion of previous NHTSA recall numbers 16V-245, 19V-435, and 20V-675. Certain vehicles previously repaired will need to return for the new remedy. An interim notification letter notifying owners of the safety risk were mailed on September 10, 2021. Owner notification letters were mailed on March 16, 2022. Owners may contact Ford's customer service at 1-866-436-7332. Ford's number for this recall is 21S32.

21V316000 · Structure:body

May 5, 2021

Ford Motor Company (Ford) is recalling certain 2016-2019 Explorer vehicles. The retention pins could loosen and allow the roof rail covers to detach from the vehicle.

Consequence & remedy

Consequence: A detached roof rail cover can create a road hazard, increasing the risk of a crash.

Remedy: Dealers will install push-pins and replace any damaged rail clips and roof rail covers, as necessary, free of charge. The interim owner notification letter was mailed on June 22, 2021. Owner notification letters (remedy available) were mailed on October 1, 2021. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 21S22.

20V675000 · Suspension:rear

Mar 12, 2021

Ford Motor Company (Ford) is recalling certain 2013-2017 Explorer vehicles originally sold, or currently registered in Connecticut, Delaware, the District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, and Wisconsin that were previously repaired under a prior recall numbers 16V-245 or 19V-435. The outboard section of a rear suspension toe link may fracture.

Consequence & remedy

Consequence: A rear toe link fracture can result in a loss of steering control, increasing the risk of a crash.

Remedy: Ford will notify owners, and dealers will inspect the cross-axis ball joint (CABJ) knuckle attached to the rear suspension toe link and replace it as necessary, free of charge. The recall began November 27, 2020. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 20S62.

19V651000 · Seats

Sep 11, 2019

Ford Motor Company (Ford) is recalling certain 2017 Ford Explorer vehicles equipped with power front seats. The seat frames may have sharp edges.

Consequence & remedy

Consequence: Occupants my contact the sharp edges when reaching between the power front seat and center console, increasing their risk of injury.

Remedy: Ford will notify owners, and dealers will install protective tape on the exposed inside edge and tab of the power seat frames, free of charge. The recall began November 8, 2019. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 19S29.

19V435000 · Suspension:rear

Jun 10, 2019

Ford Motor Company (Ford) is recalling certain 2011-2017 Explorer vehicles. The rear suspension toe links may fracture due to stress on the rear suspension.

Consequence & remedy

Consequence: A fractured rear toe link will cause a sudden change in vehicle handling and increase the risk of a crash.

Remedy: Ford will notify owners, and dealers will replace the rear suspension toe links, and inspect both rear toe link ball joints, replacing the rear wheel knuckle(s), if necessary, free of charge. The recall began June 26, 2019. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 19S17.

17V530000 · Steering

Aug 28, 2017

Ford Motor Company (Ford) is recalling certain 2017 Explorer, Taurus and Police Interceptor Utility and Sedan vehicles. The steering gear heat shield fasteners may corrode, allowing the heat shield to detach.

Consequence & remedy

Consequence: If the heat shield detaches, the steering gear may overheat, increasing the steering effort required by the driver, especially at lower speeds, and increasing the risk of a crash.

Remedy: Ford will notify owners, and dealers to inspect and replace the heat shield fasteners as needed, free of charge. The recall began on September 13, 2017. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 17S23.

17V332000 · Seats; Seats:front Assembly:recliner

May 22, 2017

Ford Motor Company (Ford) is recalling certain 2017 Ford Explorer, F-150, F-250, F-350, F-450 and F-550 vehicles equipped with a manual driver's seat back recliner mechanism. In the event of a crash, the seat back frame may not restrain the occupant due to having inadequate welds. As such, these vehicles may not meet the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 202a, "Head Restraints" and 207, "Seating Systems."

Consequence & remedy

Consequence: If the occupant is not adequately restrained in the event of a crash, they have an increased risk of injury.

Remedy: Ford will notify owners, and dealers will inspect and, if necessary, replace the seat back frame, free of charge. The recall began on June 7, 2017. Owners may contact Ford at 1-866-436-7332. Ford's number for this recall is 17C08.

Additional source detail variants (2)

Seats:front Assembly:recliner

Ford Motor Company (Ford) is recalling certain 2017 Ford Explorer, F-150, F-250, F-350, F-450 and F-550 vehicles equipped with a manual driver's seat back recliner mechanism. In the event of a crash, the seat back frame may not restrain the occupant due to having inadequate welds. As such, these vehicles may not meet the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 202a, "Head Restraints" and 207, "Seating Systems."

Consequence: If the occupant is not adequately restrained in the event of a crash, they have an increased risk of injury.

Remedy: Ford will notify owners, and dealers will inspect and, if necessary, replace the seat back frame, free of charge. The recall began on June 7, 2017. Owners may contact Ford at 1-866-436-7332. Ford's number for this recall is 17C08.

Seats

Ford Motor Company (Ford) is recalling certain 2017 Ford Explorer, F-150, F-250, F-350, F-450 and F-550 vehicles equipped with a manual driver's seat back recliner mechanism. In the event of a crash, the seat back frame may not restrain the occupant due to having inadequate welds. As such, these vehicles may not meet the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 202a, "Head Restraints" and 207, "Seating Systems."

Consequence: If the occupant is not adequately restrained in the event of a crash, they have an increased risk of injury.

Remedy: Ford will notify owners, and dealers will inspect and, if necessary, replace the seat back frame, free of charge. The recall began on June 7, 2017. Owners may contact Ford at 1-866-436-7332. Ford's number for this recall is 17C08.

16V925000 · Engine And Engine Cooling:engine:gasoline:turbo/supercharger

Dec 22, 2016

Ford Motor Company (Ford) is recalling certain model year 2016 Ford Taurus, 2016-2017 Ford Flex, Lincoln MKT, 2017 Ford Explorer and Ford Explorer Police Interceptor Utility vehicles equipped with 3.5L GTDI engines. Improperly brazed turbocharger oil supply tubes may leak oil on engine components.

Consequence & remedy

Consequence: An oil leak, in the presence of an ignition source, increases the risk of a fire.

Remedy: Ford will notify owners, and dealers will inspect, and if necessary, replace the turbocharger oil supply tubes, free of charge. The recall began on January 31, 2017. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 16S46.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

2

PE23001 · Windshield Trim Molding Item Detachment

Opened Jan 27, 2023 · Closed Feb 8, 2024

Status: closed (inferred from source dates) · Structure:body:roof And Pillars

On January 27, 2023, the Office of Defects Investigation (ODI) opened PE23-001 to investigate allegations of A-pillar trim panel detachment on model year (MY) 2011-2019 Ford Explorer vehicles. At the time of opening, the office had received 164 Vehicle Owner Questionnaires (VOQs) reporting this failure. ODI has received 671 VOQs regarding this failure, including 1 alleged crash and 2 alleged injuries. Some consumers have reported that the failure occurred while they were driving at highway speeds, with the detached trim panel entering the path of travel of the vehicle behind them, requiring the driver of the following vehicle to take evasive action. It is noteworthy that motorists who experience this type of road hazard are less likely to accurately identify the subject vehicle the item detached from and report the event to the NHTSA. In its April 17, 2023 response to ODI’s information request, Ford provided 175 consumer complaints (including field reports) and 14,162 warranty claims related to A-pillar trim panel detachment. Ford relayed that the subject vehicles utilize a plastic A-pillar bracket, which is bolted to the vehicle structure during assembly. The A-pillar trim panel is attached to the bracket utilizing 7 plastic clips. Contributory factors which have been identified by Ford as leading to the subject defect include incomplete installation at the assembly plant, inadequate part stack up, damage to fasteners during installation, and failure to follow proper repair procedure during windshield replacements or other services. On January 19, 2024, Ford filed safety recall 24V-031 for MY 2011-2019 Ford Explorer vehicles to address the subject defect. In the Part 573 Safety Recall Report, Ford identified that a detached A-pillar trim panel can create a road hazard for other road users, increasing the risk of a crash. The recall remedy includes an inspection of the existing A-pillar trim panel and, if necessary, the replacement of the component. The remedy A-pillar trim panels will be installed with an additional adhesive for robustness and utilize an inspection procedure to ensure full engagement of all the retention clips during installation. In view of the recall action being taken by Ford, ODI is closing this Preliminary Evaluation. The agency reserves the right to take additional action if warranted by future circumstances. To review the reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

EA17002 · Exhaust Odor In Passenger Cab

Opened Jul 27, 2017 · Closed Jan 17, 2023

Status: closed (inferred from source dates) · Engine And Engine Cooling:exhaust System:manifold/header/muffler/tail Pipe; Structure:body

During the EA17-002 investigation, the agency reviewed and analyzed reports of exhaust odors in the passenger cabins of Model Year 2011 to 2017 Ford Explorers. This investigation required an approach that incorporated knowledge and expertise from the automotive, medical, environmental health, and occupational safety fields. The agency conducted an in-depth investigation that encompassed the review of over 6,500 consumer complaints, conducting field inspections, and testing the relevant vehicles, both independently and in coordination with Ford and other entities. During the investigation, the evolution of Ford service bulletins intended to reduce the level of exhaust odors and carbon monoxide (CO) entering the occupant compartment was examined and independent tests to evaluate the effectiveness of the final Field Service Actions (FSA) for both consumer and police vehicles were conducted. As part of the investigation, the agency also examined the effects of cracked exhaust mani-cats on the measured CO levels in the vehicles and tested the FSA repairs to ensure they did not adversely impact occupant compartment CO levels due to cracked mani-cats.The investigation identified upfitting issues for Police Interceptor vehicles. Upfitting (sirens, lights, cages, auxiliary power, etc.) is typically performed by governmental fleet operations, independent repair facilities, or local Ford dealers after the sale of the new vehicle. Sealing issues caused by upfitting were responsible for the highest measured carbon monoxide levels in tested vehicles. The police FSA instructs how to inspect the quality of the vehicle upfits and how to properly seal any leaks caused by these upfits, at no cost to the police agency. Similarly, the highest CO levels measured in consumer vehicles were usually traced to sealing issues caused by rear crash damage where the repairs did not ensure sealing integrity. The most recent Ford FSA procedure for both the police (17B25) and consumer vehicles (17N03) includes an HVAC reprogramming operation. Tests by Ford and NHTSA have demonstrated a substantial reduction of CO levels due solely to the HVAC reprogramming. Other FSA repairs also demonstrated measurable contributions to CO level reductions during controlled tests.Throughout the investigation, vehicles accurately measured with higher levels of carbon monoxide were almost always affected by upfitter alterations, damage, or other causes compromising rear passenger cabin seals.NHTSA received thousands of reports alleging odors which triggered a variety of physiological responses, predominately nausea, headaches, and lightheadedness. NHTSA focused the investigation on accurately measuring vehicle CO levels, and accurately measuring carboxyhemoglobin (COHB) levels from properly administered blood tests. Using rigorous test methods to produce exhaust gas intrusion in vehicles with a properly performed FSA, occupant compartment CO levels remained below current environmental limits for CO in any environment (EPA ambient air quality standards). Furthermore, even without FSA repairs, no vehicles unaffected by upfitter issues or prior crash damage were identified with CO levels that exceed accepted occupational CO exposure levels. This investigation finds that the 2011-2017 Ford Explorer vehicles when accurately measured produce occupant compartment CO levels which fall below current accepted health standards, and could not identify COHB levels for vehicle drivers or other occupants, which exceeded thresholds for acute physiological effects. Therefore, the agency has not identified a defect that represents an unreasonable risk to motor vehicle safety.This inve

Additional source detail variants (2)

Engine And Engine Cooling:exhaust System:manifold/header/muffler/tail Pipe

During the EA17-002 investigation, the agency reviewed and analyzed reports of exhaust odors in the passenger cabins of Model Year 2011 to 2017 Ford Explorers. This investigation required an approach that incorporated knowledge and expertise from the automotive, medical, environmental health, and occupational safety fields. The agency conducted an in-depth investigation that encompassed the review of over 6,500 consumer complaints, conducting field inspections, and testing the relevant vehicles, both independently and in coordination with Ford and other entities. During the investigation, the evolution of Ford service bulletins intended to reduce the level of exhaust odors and carbon monoxide (CO) entering the occupant compartment was examined and independent tests to evaluate the effectiveness of the final Field Service Actions (FSA) for both consumer and police vehicles were conducted. As part of the investigation, the agency also examined the effects of cracked exhaust mani-cats on the measured CO levels in the vehicles and tested the FSA repairs to ensure they did not adversely impact occupant compartment CO levels due to cracked mani-cats.The investigation identified upfitting issues for Police Interceptor vehicles. Upfitting (sirens, lights, cages, auxiliary power, etc.) is typically performed by governmental fleet operations, independent repair facilities, or local Ford dealers after the sale of the new vehicle. Sealing issues caused by upfitting were responsible for the highest measured carbon monoxide levels in tested vehicles. The police FSA instructs how to inspect the quality of the vehicle upfits and how to properly seal any leaks caused by these upfits, at no cost to the police agency. Similarly, the highest CO levels measured in consumer vehicles were usually traced to sealing issues caused by rear crash damage where the repairs did not ensure sealing integrity. The most recent Ford FSA procedure for both the police (17B25) and consumer vehicles (17N03) includes an HVAC reprogramming operation. Tests by Ford and NHTSA have demonstrated a substantial reduction of CO levels due solely to the HVAC reprogramming. Other FSA repairs also demonstrated measurable contributions to CO level reductions during controlled tests.Throughout the investigation, vehicles accurately measured with higher levels of carbon monoxide were almost always affected by upfitter alterations, damage, or other causes compromising rear passenger cabin seals.NHTSA received thousands of reports alleging odors which triggered a variety of physiological responses, predominately nausea, headaches, and lightheadedness. NHTSA focused the investigation on accurately measuring vehicle CO levels, and accurately measuring carboxyhemoglobin (COHB) levels from properly administered blood tests. Using rigorous test methods to produce exhaust gas intrusion in vehicles with a properly performed FSA, occupant compartment CO levels remained below current environmental limits for CO in any environment (EPA ambient air quality standards). Furthermore, even without FSA repairs, no vehicles unaffected by upfitter issues or prior crash damage were identified with CO levels that exceed accepted occupational CO exposure levels. This investigation finds that the 2011-2017 Ford Explorer vehicles when accurately measured produce occupant compartment CO levels which fall below current accepted health standards, and could not identify COHB levels for vehicle drivers or other occupants, which exceeded thresholds for acute physiological effects. Therefore, the agency has not identified a defect that represents an unreasonable risk to motor vehicle safety.This inve

Structure:body

During the EA17-002 investigation, the agency reviewed and analyzed reports of exhaust odors in the passenger cabins of Model Year 2011 to 2017 Ford Explorers. This investigation required an approach that incorporated knowledge and expertise from the automotive, medical, environmental health, and occupational safety fields. The agency conducted an in-depth investigation that encompassed the review of over 6,500 consumer complaints, conducting field inspections, and testing the relevant vehicles, both independently and in coordination with Ford and other entities. During the investigation, the evolution of Ford service bulletins intended to reduce the level of exhaust odors and carbon monoxide (CO) entering the occupant compartment was examined and independent tests to evaluate the effectiveness of the final Field Service Actions (FSA) for both consumer and police vehicles were conducted. As part of the investigation, the agency also examined the effects of cracked exhaust mani-cats on the measured CO levels in the vehicles and tested the FSA repairs to ensure they did not adversely impact occupant compartment CO levels due to cracked mani-cats.The investigation identified upfitting issues for Police Interceptor vehicles. Upfitting (sirens, lights, cages, auxiliary power, etc.) is typically performed by governmental fleet operations, independent repair facilities, or local Ford dealers after the sale of the new vehicle. Sealing issues caused by upfitting were responsible for the highest measured carbon monoxide levels in tested vehicles. The police FSA instructs how to inspect the quality of the vehicle upfits and how to properly seal any leaks caused by these upfits, at no cost to the police agency. Similarly, the highest CO levels measured in consumer vehicles were usually traced to sealing issues caused by rear crash damage where the repairs did not ensure sealing integrity. The most recent Ford FSA procedure for both the police (17B25) and consumer vehicles (17N03) includes an HVAC reprogramming operation. Tests by Ford and NHTSA have demonstrated a substantial reduction of CO levels due solely to the HVAC reprogramming. Other FSA repairs also demonstrated measurable contributions to CO level reductions during controlled tests.Throughout the investigation, vehicles accurately measured with higher levels of carbon monoxide were almost always affected by upfitter alterations, damage, or other causes compromising rear passenger cabin seals.NHTSA received thousands of reports alleging odors which triggered a variety of physiological responses, predominately nausea, headaches, and lightheadedness. NHTSA focused the investigation on accurately measuring vehicle CO levels, and accurately measuring carboxyhemoglobin (COHB) levels from properly administered blood tests. Using rigorous test methods to produce exhaust gas intrusion in vehicles with a properly performed FSA, occupant compartment CO levels remained below current environmental limits for CO in any environment (EPA ambient air quality standards). Furthermore, even without FSA repairs, no vehicles unaffected by upfitter issues or prior crash damage were identified with CO levels that exceed accepted occupational CO exposure levels. This investigation finds that the 2011-2017 Ford Explorer vehicles when accurately measured produce occupant compartment CO levels which fall below current accepted health standards, and could not identify COHB levels for vehicle drivers or other occupants, which exceeded thresholds for acute physiological effects. Therefore, the agency has not identified a defect that represents an unreasonable risk to motor vehicle safety.This inve

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