NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
2,449 reportsMileage unknown · Nov 25, 2023
SteeringSuspensionWheels
I [XXX] went with my mom [XXX] to buy a vehicle off of [XXX] . It was a 2016 ford explorer. I payed 13,000. The began to lose control when driving on a bumpy road and while braking I took the car to a Ford dealer and had some repairs, but they didn’t find the problem. I used the car sparingly and within two weeks it got much…
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I [XXX] went with my mom [XXX] to buy a vehicle off of [XXX] . It was a 2016 ford explorer. I payed 13,000. The began to lose control when driving on a bumpy road and while braking I took the car to a Ford dealer and had some repairs, but they didn’t find the problem. I used the car sparingly and within two weeks it got much worse. Very unsafe to drive I brought it to another Ford dealership and I paid for substantial repairs for the suspension. The first time I drove it on a bumpy the car lost control again. I managed to regain control and drive it to the side of the road and had someone pick up the car. I went to trade the car in and learned the vehicle had been in two accidents and was reported as a total loss. Per the Carfax report. We were never told it was a salvaged vehicle or we would never purchased it for our family vehicle. The vehicle is too unsafe to put back on the road. I bought a 2017 Ford Explorer at a dealership and traded in the 2016 Ford Explorer at a significant loss. The vehicle was in my possession for approx. two months where it spent most of the time in different Ford repaid shops INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11556734
153,000 miles · Nov 22, 2023
Engine And Engine Cooling
The contact owns a 2016 Ford Explorer. The contact stated while driving approximately 60 MPH, the vehicle was not accelerating as needed with the accelerator pedal depressed. The contact stated that the check engine warning light illuminated, then flashed several times and then turned off. The contact stated that the loss of mot…
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The contact owns a 2016 Ford Explorer. The contact stated while driving approximately 60 MPH, the vehicle was not accelerating as needed with the accelerator pedal depressed. The contact stated that the check engine warning light illuminated, then flashed several times and then turned off. The contact stated that the loss of motive power failure was intermittent but had reoccurred. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the water pump and timing belt needed to be replaced. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 153,000.
NHTSA ODI #11556410
Mileage unknown · Nov 20, 2023
SuspensionCrash
The rear toe suspension link failed on my Ford 2016 Explorer Sport for the 4th time on 10/20/2023 while I was driving. I heard a pop and lost total control of my vehicle. My vehicle immediately veered right going down an embankment. Thankfully trees where there to stop the vehicle from going into a roll. My safety was put at …
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The rear toe suspension link failed on my Ford 2016 Explorer Sport for the 4th time on 10/20/2023 while I was driving. I heard a pop and lost total control of my vehicle. My vehicle immediately veered right going down an embankment. Thankfully trees where there to stop the vehicle from going into a roll. My safety was put at risk. I could of died. I have sustained injuries physically and mentally fromt he crash. My children were just in that car, I had just dropped them off at school an hour prior. No warning lamps. The police only did an accident report. My insurance has been contacting me about the noise I heard right before loosing all control. The rear suspension toe link has been recalled and fixed three times prior to this happening. This is the forth time this part has broke on me. This time I am lucky to walk away.
NHTSA ODI #11556061
Mileage unknown · Nov 17, 2023
Vehicle Speed Control
I was stopped at a major intersection (very busy) at a red light when my car quit. I tried to restart the car but nothing happened. I was at the bottom of a hill, which has a turn not long before you reach this intersection, the speed limit is 45 mph but its normal for cars to average 50-60 mph. I put my flashers on and ca…
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I was stopped at a major intersection (very busy) at a red light when my car quit. I tried to restart the car but nothing happened. I was at the bottom of a hill, which has a turn not long before you reach this intersection, the speed limit is 45 mph but its normal for cars to average 50-60 mph. I put my flashers on and called AAA. Cars were piling up behind me trying to get in the other lane, horns were blowing, it was a dangerous situation! I had to remain in my car as it was not safe to get out and try to get to the side of the road. After about 15 minutes I tried to start the car again, I was able to get it going and remove myself from an unsafe situation. The car was not running properly, it was "bucking" and trying to stall, fortunately I was able to get to a safe area to pull over and get it towed. The above was written by my wife, I was not there. I am a retired Staff Engineer for a major OE and have authored many Recalls over my 35 years. This issue is a dangerous pattern failure that Ford issued a Stop Sale for. The failed part, the ETB located on the Throttle body is used on multible models with exactly the same failure. How this hasn't been recalled is amazing. This is a known safety problem, pattern failure of the ETB across madels lines that use that engine (3.5). My car is safe now but what about the ones that will failure tomorrow?
NHTSA ODI #11555649
Mileage unknown · Nov 15, 2023
StructureUnknown Or Other
I was driving on the highway and heard a loud noise didn’t know what it was until I got home and realized my windshield trim on passenger side was not on there anymore. It had flown off while driving down the highway.
NHTSA ODI #11555366
Mileage unknown · Nov 13, 2023
Unknown Or Other
My side pillar on the passenger side of my 2016 Ford Explorer door came off and I had to buy a new one. Now my A-Pillar on the drivers windshield has come off as I was on the freeway. This is safety issue for me and other drivers who may be struck. I read that this is a known issue with the 5th generation Explorers. I wanted to …
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My side pillar on the passenger side of my 2016 Ford Explorer door came off and I had to buy a new one. Now my A-Pillar on the drivers windshield has come off as I was on the freeway. This is safety issue for me and other drivers who may be struck. I read that this is a known issue with the 5th generation Explorers. I wanted to see if Ford has acknowledged this and has a fix in place for this issue. Thanks
NHTSA ODI #11554907
Mileage unknown · Nov 12, 2023
Engine
My Explorer engine blew a head gasket while I was driving and I had to maneuver quite a bit to avoid having multiple accidents. I had it towed to a shop and they said the engine was bad and caused by a known problem with Ford Ecoboost engines.
NHTSA ODI #11554766
Mileage unknown · Nov 9, 2023
Steering
The steering rack failed while operating the vehicle at approximately 40 mph resulting in a near total loss of steering. It required extreme force to turn the steering wheel to avoid oncoming traffic on a bend in the road before finally moving out of the roadway. The warning message displayed at the time of the fault was "Steer…
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The steering rack failed while operating the vehicle at approximately 40 mph resulting in a near total loss of steering. It required extreme force to turn the steering wheel to avoid oncoming traffic on a bend in the road before finally moving out of the roadway. The warning message displayed at the time of the fault was "Steering Assist Fault Service Required." The component had to be replaced when it was evaluated by the Ford dealer
NHTSA ODI #11554383
Mileage unknown · Nov 8, 2023
Structure
In 2021, driving down the highway, our driver side windshield trim partially broke free and started smacking against the driver side window before breaking off and flying behind the vehicle. Then in July 2023, the passenger side windshield trim broke free on the highway. Appears the rubber seal disintegrates allowing the wind to…
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In 2021, driving down the highway, our driver side windshield trim partially broke free and started smacking against the driver side window before breaking off and flying behind the vehicle. Then in July 2023, the passenger side windshield trim broke free on the highway. Appears the rubber seal disintegrates allowing the wind to grab it and rip the plastic trim piece off the vehicle. Currently, the rubber seal on the engine cowl windshield trim is disintegrating also.
NHTSA ODI #11554161
Mileage unknown · Nov 4, 2023
Structure
Passenger Side windshield molding Trim flew off on the highway speed.
NHTSA ODI #11553537
Official recalls
14Jul 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.
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.
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.
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.
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.
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.
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.
Nov 10, 2020
Ford Motor Company (Ford) is recalling certain 2014-2016 Explorer, 2014-2015 Taurus and 2014 Edge vehicles equipped with 2.0L or 2.3L engines and front wheel drive. The support bracket for the front drive axle halfshaft may fail.
Consequence & remedy
Consequence: The failed bracket could result in a loss of park function which can cause unintended vehicle movement, and loss of motive power while driving which increases the risk of a crash.
Remedy: Ford will notify owners, and dealers will replace the link shaft bracket, free of charge. Parts are not currently available. Owners received an interim notification detailing safety risk December 8, 2020. A second letter will be mailed when parts become available in January 2021. The recall began February 2, 2021. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 20S63.
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.
Nov 29, 2017
Ford Motor Company (Ford) is recalling certain 2016 F-150 and Explorer vehicles. Loose power seat adjuster pivot bolts may cause the front seat cushions to detach and not properly restrain the seat occupant in the event of a crash.
Consequence & remedy
Consequence: In the event of a crash, a seat occupant that is not properly restrained has an increased risk of injury.
Remedy: Ford will notify owners, and dealers will inspect the tightness of the power seat track upper pivot link bolt, either applying threadlocker or replacing the lift link and hardware, free of charge. Interim letters are expected to go out January 15, 2018. Owners will receive a second notice when the remedy becomes available. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 17S40.
Jun 28, 2016
Ford Motor Company (Ford) is recalling certain model year 2016 Ford Explorer and F-150 vehicles equipped with a manual recline driver's seat. The seat back frame may have insufficient welds which may not meet the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 202, "Head Restraints" and 207, "Seating Systems."
Consequence & remedy
Consequence: The seat back may not adequately restrain the occupant during a crash, increasing the 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 begin on August 18, 2016. Owners may contact Ford at 1-800-392-3673. Ford's number for this recall is 16C11.
Mar 31, 2016
Ford Motor Company (Ford) is recalling certain model year 2015-2016 Lincoln MKC vehicles manufactured November 25, 2013, to January 25, 2016, and 2016 Ford Explorer vehicles manufactured October 20, 2014, to January 28, 2016. The affected vehicles are equipped with 2.3L GTDI engines and engine block heaters. These engine block heaters have elements that may overheat while plugged in.
Consequence & remedy
Consequence: Overheating of the engine block increase the risk of a fire.
Remedy: Ford will notify owners, and dealers will replace the engine block heater, free of charge. Dealers will also inspect and replace the electrical cord, as necessary. The recall began on May 18, 2016. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 16S14. Note: Owners should not use the engine block heater until the vehicle has been remedied.
Sep 28, 2015
Ford Motor Company (Ford) is recalling certain model year 2015 Ford Taurus, Lincoln MKS, and 2016 Ford Explorer vehicles manufactured on July 24, 2015. During vehicle production, the fuel tank attachment bolts may not have been properly tightened. As a result, the fuel tank straps may fracture and the fuel tank could separate from the vehicle.
Consequence & remedy
Consequence: If the fuel tank separates from the vehicle, a fuel leak may occur, increasing the risk of a fire.
Remedy: Ford will notify owners, and dealers will tighten the fuel tank attachment bolts, as necessary, free of charge. The recall began on October 19, 2015. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 15S26.
Jul 24, 2015
Ford Motor Company (Ford) is recalling certain model year 2015 Ford Taurus, Ford Flex, and Lincoln MKS vehicles manufactured May 4, 2015, to May 23, 2015, Lincoln MKT vehicles manufactured May 4, 2015, to May 21, 2015, and 2015-2016 Ford Explorer vehicles manufactured May 4, 2015, to May 23, 2015. The affected vehicles have a parking brake that may not fully engage when applied. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 135, "Light Vehicle Brake Systems."
Consequence & remedy
Consequence: If the parking brake does not fully engage and the transmission is left in a gear other than 'Park' while on a slope, the vehicle may roll away, increasing the risk of a crash.
Remedy: Ford will notify owners, and dealers will test the operation of the parking brake system, and if necessary, replace the parking brake control assembly, free of charge. The recall began on September 4, 2015. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 15C07.
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
2PE23001 · 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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