For 20212026 vehicles equipped with the 10R80 transmission, a new Transmission Clutch Circuit Leak Test has been introduced in the Ford Diagnosis and Repair System (FDRS). This test utilizes the pressure and vacuum transducer (PVT) when available. When referred to a specific clutch (A-F) test by a pinpoint test in Workshop Manual (WSM), Section 307-01 > Diagnosis and Testing, the Clutch Assembly tests have been updated with a hyperlink to the new Transmission Line Pressure Test - Pressure Vacuum Transducer (PVT) Is Available procedure in WSM, Section 307-01 > General Procedures. This procedure provides instructions to perform the FDRS Transmission Clutch Circuit Leak Test when applica
full bulletin at NHTSA ↗2021 Ford Expedition powertrain problems
moderate 86 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Failure mileage
Complaints
86
Recalls
0
Avg fix
$2,500
2crashes
2injuries
When does it fail?
Of the 86 powertrain complaints filed for the 2021 Ford Expedition, here's the actual mileage breakdown — failures cluster heaviest at 75,000-100,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Powertrain accounts for 43% of every owner complaint on file for this vehicle — the dominant problem area across 7 categories tracked.
Owners have filed 86 powertrain complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering powertrain on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
For 2021-2026 vehicles equipped with the 10R80 transmission, a new Transmission Clutch Circuit Leak Test has been introduced in the Ford Diagnosis and Repair System (FDRS). This test utilizes the pressure and vacuum transducer (PVT) when available. The Workshop Manual (WSM) has been updated under Section 307-01 > Diagnosis and Testing to include this procedure. The new test improves the accuracy of detecting leaks within transmission fluid circuits and replaces the previous air check method.
full bulletin at NHTSA ↗Some 2021-2025 F-150/Expedition/Navigator vehicles equipped with a 3.5L EcoBoost engine may exhibit diagnostic trouble code (DTC) P0299 stored in the powertrain control module (PCM) and may also exhibit a rattle noise from the turbocharger. This may be due to the wastegate actuator rod being disconnected. Workshop Manual (WSM), Section 303-04 Fuel Charging and Controls > Turbocharger has been added to address this condition to allow servicing of the turbocharger actuator rod. In addition, the wastegate actuator rod and associated retention springs and clips have been released as lower level components to complete the repair without replacing the entire turbocharger actuator assembly.
full bulletin at NHTSA ↗Some 2015-2021 Ford and Lincoln vehicles may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P0011, P0012, P0014, P0015, P0016, P0017, P0018, P0019, P0021, P0022, P0024 and/or P0025. Pinpoint test HK in the Powertrain Control and Emissions Diagnosis (PC/ED) or in Section 303-14 of the Workshop Manual (WSM) has been updated to address this concern.
full bulletin at NHTSA ↗Some 2021-2025 Expedition/Navigator/F-150/F-Super Duty/F-53 Motorhome/F59 Commercial Stripped Chassis/F-650/F-750/Transit vehicles equipped with a 2.7L/3.5L (non hybrid)/6.8L/7.3L engine and 2021-2026 E-Series may exhibit a rattle/scraping noise from the bellhousing area on start-up. Workshop Manual (WSM), Section 303-00 Engine System - General Information > Diagnosis and Testing and 303-06 > Starting System has been updated to address this condition. Additionally, WSM, Section 303-01 > Removal and Installation > Engine to Transmission Spacer Plate has been added to address this condition. Refer to the revised WSM sections for normal diagnosis.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2021 Ford Expedition's 10R80 transmission is generating complaints about unresolved shifting failures across a wide mileage range. Owners describe shuddering, hard shifts, and violent lurching that begins as early as 15,000 miles and continues recurring after dealership repairs, full transmission replacements, and rebuilds. The most dangerous failure is sudden loss of power at highway speeds: the transmission disengages, RPM spikes to redline, the vehicle decelerates uncontrollably, then re-engages with a loud clunk—creating near-miss collisions and rear-end scenarios. This loss-of-power event occurs randomly and is not reproducible at dealer shops, complicating diagnosis.
Owners report delayed engagement from park to drive or reverse (up to 45 seconds), causing unexpected rolling and near-crashes. Transmission fluid inspections reveal metal debris, indicating advanced internal wear. Ford has issued Technical Service Bulletins (TSB 25-2132, 23-2123, 24-2101, 25-2023, 22-2428) addressing harsh shifts, CDF clutch drum failure, and hydraulic leakage, plus campaign 24E13 for power module issues. Despite these bulletins and multiple visits to dealerships, owners report the problems return or worsen. One owner documented two full transmission replacements in two years with no resolution. Most failures carry no warning lights, leaving drivers unaware until power loss occurs in traffic. One owner experienced transmission failure and disputed Ford's towing-damage claim; Ford's engineer refused to explain how Tow Mode disengagement was assessed. A front differential failure was also reported, with parts backordered. Warranty coverage is inconsistent; out-of-warranty owners face full replacement costs, while some in-warranty repairs are denied or insufficient.
Same Ford Expedition powertrain reports on nearby years: 2018 · 2019 · 2020 · 2022
Failure modes owners describe
Transmission Shuddering, Slipping, Hesitation, and Hard Shifts
Repeated transmission shuddering, slipping, hesitation during acceleration, and hard/harsh shifts between gears. Occurs during normal driving, highway merging, and lane changes. Shifting issues include rough engagement, delayed shifts, and violent lurching. Hard downshifts between 4–3, 7–8, and 9–10 gears noted. Grinding sounds reported during upshifts (2–3) and downshifts (5–4). Issues persist or return after transmission replacement or rebuild.
When: Starts as early as 15,000–20,000 miles; recurs at 31,000–94,000+ miles
Symptoms owners cite: Transmission shuddering and slipping; Hard/harsh gear shifts and jerking; Violent lurching when shifting; Hesitation under acceleration; Delayed or rough engagement into drive/reverse; Grinding sounds during shifts; Transmission clunking noise; Grinding and jerking when downshifting on hills
Codes mentioned: DTC 10R80 (transmission fault code), DTC P07F7 (CDF drum failure), No warning lights in many cases
Repairs/costs cited: Full transmission replacements performed multiple times with issues returning. CDF clutch drum replacement attempted. Transmission rebuild ordered. Dealer reset of adaptive learning module attempted but issues recur.
Recalls/TSBs owners mention: TSB 25-2132 (harsh/delayed shifting, shudder, internal hydraulic leakage tied to CDF clutch drum); TSB 23-2123 (harsh engagement, shift delays); TSB 24-2101 (hydraulic leakage diagnosis); TSB 25-2023 (inspection/service updates); TSB 22-2428 (harsh/delayed engagement and shift). Campaign 24E13 (power module recall). Ford applied software updates as temporary fixes; dealers reset adaptive transmission learning module.
Loss of Power and Transmission Disengagement at Speed
Complete or near-complete loss of power while driving at highway speeds (45–75 mph), with the transmission disengaging or the vehicle falling out of gear. RPM spikes to redline while vehicle loses speed. Transmission re-engages with loud clunk and jolting. Occurs randomly during passing, merging, uphill driving, and normal acceleration. No reproducible pattern. Extremely dangerous in traffic, nearly causing rear-end collisions and near-miss incidents with oncoming traffic.
When: Various mileages from 4,000 to 107,000+ miles; can occur repeatedly over months or years
Symptoms owners cite: Complete loss of motive power; Sudden power loss during acceleration or passing; RPM spike or gauge drop to zero with power loss; Vehicle falls out of gear unexpectedly; Loud clunk when transmission re-engages; Vehicle jolts and shakes during power loss; Transmission stuck in one gear (e.g., 6th); Gear display on dashboard goes blank
Codes mentioned: Large red wrench warning light (powertrain malfunction), Small wrench indicator light remaining on dash, Check manual light / service lamp, Powertrain system message display, No codes retrieved in many cases despite failures
Repairs/costs cited: Transmission rebuild completed at dealership; issue recurred. Dealers unable to reproduce failure during diagnostic. Transmission plate replaced; rebuild offered under warranty. Vehicle remains unrepaired in many cases due to cost or warranty expiration.
Recalls/TSBs owners mention: Ford engineer reviewed case; determined issue was improper towing (warranty denial in one case). No recall issued despite multiple reports. Referral to NHTSA Hotline. No response to notice letter sent after recent incident in one case. Known issue identified on Ford truck owners forums and pending lawsuits noted by owners.
Delayed or Failed Engagement from Park to Drive/Reverse
Significant delays (up to 45+ seconds) when shifting from park to drive, drive to reverse, or reverse to drive. Vehicle does not immediately respond to gear selection, creating safety hazards when entering traffic or reversing. Some cases report vehicle rolling backward or forward unexpectedly when in park, as if transmission were in neutral. Delays worsen over time despite dealer resets.
When: Recurring issue; resets by dealer provide temporary relief (approx. 6 months) before recurring worse
Symptoms owners cite: Delayed engagement from park to drive; Delayed engagement from drive to reverse; Vehicle rolling backward or forward from park; Vehicle refusing to exit park without repeated shifting attempts; Extended pause before transmission engages after gear selection; Near-crash incidents due to delayed response
Codes mentioned: Low voltage adaptive learning module fault, No warning lights in many cases
Repairs/costs cited: Adaptive learning module reset at dealership provides temporary fix (6 months). Multiple resets required as issue recurs. No permanent repair identified.
Recalls/TSBs owners mention: Dealership resets adaptive learning module; acknowledges low-voltage condition. Once vehicle out of warranty, dealer offers reset only at owner cost with no root-cause investigation promised. No manufacturer recall or TSB for engagement delay.
Transmission Valve Body Failure
Internal transmission valve body failure causing loss of motive power, rough shifting, and difficulty engaging intended gears. Failure recurs even after valve body replacement by dealership.
When: First failure at 13,722 miles
Symptoms owners cite: Loss of motive power; Rough shifting; Jerking of vehicle; Vehicle unable to engage correct gear
Codes mentioned: Warning lights illuminated (specific codes not provided)
Repairs/costs cited: Transmission valve body replaced by dealership. Failure recurred within days/weeks; dealership reset transmission without further parts replacement. Vehicle not yet fully repaired.
Recalls/TSBs owners mention: Manufacturer not notified. No TSB or recall cited for valve body failure in this case.
CDF (Clutch Drum) Failure
Internal failure of the CDF (Clutch Drum Friction) component in the 10R80 transmission, preventing reliable acceleration and deceleration. Owners and dealers confirm the failure. Ford released Technical Service Bulletins addressing this known issue since 2023. CDF drum grinding and internal hydraulic leakage cited in bulletins.
When: Failures noted between 60,000 and 94,000 miles
Symptoms owners cite: Inability to accelerate or decrease speed reliably; Lurching when shifting; Erratic shifting; Hard jerking during shifts (especially 9th–10th gear transition)
Codes mentioned: DTC P07F7 (CDF drum failure code), No warning lights in many cases
Repairs/costs cited: Dealership confirmed CDF drum failure. Transmission replacement or rebuild recommended. One vehicle purchased used at 60,000 miles; no disclosure of transmission issues by dealer.
Recalls/TSBs owners mention: TSB 25-2132 (CDF clutch drum hydraulic leakage and failure); TSB 23-2123, TSB 24-2101, TSB 25-2023 (related transmission service bulletins). Dealers informed of issue but no recall issued. Used vehicle sold without disclosure of known transmission susceptibility.
Transmission Stuck in Gear or Unable to Shift
Transmission becomes stuck in a single gear (e.g., 1st or 6th), unable to shift to other gears. Vehicle loses ability to accelerate or decelerate appropriately. Requires restart or manual intervention to reset transmission.
When: Various mileages; one at 78,000 miles
Symptoms owners cite: Transmission stuck in first or sixth gear; Unable to shift to intended gear; Inability to accelerate beyond stuck gear; Gear display blank on dashboard
Codes mentioned: CDF drum failure diagnosed, No warning lights in some cases
Repairs/costs cited: One case: independent mechanic determined transmission rebuild needed. Vehicle not repaired due to cost. Another case: vehicle remains unrepaired and out of warranty.
Recalls/TSBs owners mention: Manufacturer referred contact to NHTSA Hotline. No recall or warranty extension offered in cases where vehicle out of warranty.
Transmission Fluid Contamination and Metal Debris
Regular transmission fluid changes reveal metal contamination, indicating accelerated breakdown and wear of internal gears and components. Metal particles in fluid suggest advanced internal damage. Owners report learning this after transmission fluid service.
When: Documented at service visits; timing relative to mileage not always specified
Symptoms owners cite: Metal shavings/debris in transmission fluid; Premature gear and component breakdown; Rapid progression from hard shifting to slipping gears to inability to accelerate
Codes mentioned: Visual inspection of transmission fluid only
Repairs/costs cited: Transmission replacement recommended due to contamination and wear. One case: dealership found metal in fluid at 94,000 miles, after transmission warranty expired. Ford replaces transmission with same 10R80 unit.
Recalls/TSBs owners mention: No TSB or recall specifically addressing fluid contamination patterns. Dealership offers transmission replacement with same unit type.
Erratic Downshifting and Rapid Deceleration
Transmission downshifts abruptly and erratically at highway speeds without driver input or speed/incline change. Causes sudden deceleration, jolting passengers, and rapid speed changes. Transmission display on dashboard shows numbers disappearing during downshift events. Forceful downshifts leading to injuries reported.
When: Daily occurrence reported in one case; recurring at highway speeds
Symptoms owners cite: Erratic and forceful downshifting at highway speeds; Sudden deceleration without driver input; Jolting and abrupt speed changes; Transmission display glitching (numbers disappearing); Violent shift into reverse after vehicle sits idle; Injuries to vehicle occupants from forceful shifts
Codes mentioned: No warning lights reported
Repairs/costs cited: No repairs documented; issue ongoing
Recalls/TSBs owners mention: Service manager suggested owner does not understand 10-speed transmission operation. No technical service bulletins or repairs offered.
Popping Sound and Hesitation During Park-to-Drive Transitions
Popping noise heard while depressing brake pedal when shifting from park to drive or reverse. Hesitation on accelerator pedal during these transitions. Issue persists even after unknown transmission part replacement.
When: At approximately 13,000 miles
Symptoms owners cite: Popping sound from transmission during park/reverse shifts; Hesitation when depressing accelerator; Failure to reproduce issue at dealership
Codes mentioned: No failure codes found by dealership
Repairs/costs cited: Unknown transmission part replaced; issue persisted. Dealership unable to reproduce failure; vehicle not repaired.
Recalls/TSBs owners mention: Manufacturer case opened; no details provided on resolution or next steps.
Abrupt Forward Acceleration While in Park
Vehicle abruptly accelerates forward while parked and shifter in park position, brake applied, without driver input. Brake pedal depression during acceleration does not stop the vehicle. Resulted in collision with structure.
When: Timing not specified; failure mileage unknown
Symptoms owners cite: Vehicle accelerates forward from park without driver input; Brake pedal ineffective during unintended acceleration; No warning lights illuminated
Codes mentioned: No codes or lights reported
Repairs/costs cited: Vehicle not yet repaired at time of report; awaiting dealership diagnostic
Recalls/TSBs owners mention: Manufacturer not notified at time of report. No recall or safety alert issued.
Front Differential Failure
Front differential failure while in 4-wheel drive at low speed in cold weather (38°F, snow conditions). Grinding and noise from front differential. Parts on back order despite dealer claiming failure is not common.
When: Early in ownership (~1 year); triggered at low speed in 4WD mode in snowy conditions
Symptoms owners cite: Grinding noise from front differential; Noise persists in 2WD and 4WD modes; 4WD functionality intact but accompanied by grinding
Codes mentioned: Front differential failure diagnosed by dealership
Repairs/costs cited: Dealership diagnosis confirmed front differential failure; parts on back order with no delivery date. Vehicle awaiting repair weeks after diagnosis.
Recalls/TSBs owners mention: Dealer stated failure is 'not common'; however, parts are on back order, suggesting recurrence. No TSB or recall mentioned.
Towing-Related Transmission Damage (Disputed)
Transmission failure occurred approximately 6 months after multi-state towing trip. Vehicle was in Tow Mode during trip; clunking sound and poor performance began in January, months after July towing trip. Ford dealership and engineer claim improper towing caused damage; owner disputes, stating Tow Mode was confirmed active throughout trip and no other gear mode available while towing.
When: Symptoms began ~6 months after July towing trip; clunking in January
Symptoms owners cite: Clunking sound from transmission; Poor transmission performance; Delayed symptoms suggest latent damage or unrelated failure
Codes mentioned: Ford engineer assessment: transmission damaged from improper towing
Repairs/costs cited: Warranty denied by Ford due to alleged improper towing. Second opinion did not agree with Ford's assessment. Ford engineer refused to provide details on how Tow Mode disengagement assessment was performed.
Recalls/TSBs owners mention: Ford warranty claim denied; engineer assessment of improper towing. Ford declined to investigate whether Tow Mode error occurred. Owner noted Ford reported incident and requested NHTSA confirmation of similar reports.
Transmission Overheating and Drive Mode Inoperable Message
Engine overheating with 'Drive Mode Inoperable' message displayed. Dealership diagnosed the failure as transmission-related. Vehicle required shutdown and restart to resume operation.
When: At 99,130 miles
Symptoms owners cite: Engine overheating; 'Drive Mode Inoperable' message displayed; Diagnosis indicated transmission failure as root cause
Codes mentioned: 'Drive Mode Inoperable' dashboard message, NHTSA Campaign 22V346000 (Engine) parts on back order
Repairs/costs cited: Parts on back order; vehicle not yet repaired
Recalls/TSBs owners mention: NHTSA Campaign 22V346000 (Engine) referenced; however, failure diagnosed as transmission-related. Manufacturer case opened.
Wiring Harness Melting and Battery Junction Box Corrosion
Battery junction box corroded, leading to burnt plastic/electrical smell while vehicle running and parked. Wiring harness severely melted. Ford warranty campaign 22N19 covers battery junction box replacement, but wiring harness replacement part is backordered with no availability date. Ford refuses to provide rental or loaner assistance, claiming repair should take only hours despite parts shortage.
When: Reported 9/15/2025
Symptoms owners cite: Burnt plastic/electrical smell; Service lamps illuminated advising immediate service; Powertrain issue warning; Vehicle would not shut off; Wiring harness severely melted
Codes mentioned: Powertrain issue service lamps
Repairs/costs cited: Battery junction box replacement covered under campaign 22N19. Wiring harness replacement part backordered; no ETA. Ford refusing rental/loaner assistance.
Recalls/TSBs owners mention: Campaign 22N19 (1-time battery junction box replacement). Ford refuses to acknowledge ongoing wiring harness issue or provide customer support during repair delay.
Rear-View Camera Defect (Separate Recall)
Rear-view camera under active NHTSA recall 25V048 with poor image quality complicating safe reversing. Incident: trailer detached due to improper securing by store staff and struck vehicle rear bumper. Camera defect compounds safety risk when backing after impact.
When: Ongoing; trailer impact event timing not specified
Symptoms owners cite: Poor rear-camera image quality; Reduced visibility when reversing; Complicates safe backing after rear impact
Codes mentioned: NHTSA Recall 25V048 (rear-view camera)
Repairs/costs cited: Recall 25V048 covers camera defect. Vehicle pending insurance claim review for impact damage.
Recalls/TSBs owners mention: NHTSA Recall 25V048 issued for rear-camera defect. Repair status pending insurance claim resolution.
Synthesized from 86 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 8 most recent
During highway operation, vehicle transmission makes very loud and angry sound and then loses ability to move , almost caused us to get hit at an intersection. Vehicle often jumps violently when shifting to reverse, and often loses propulsion when going uphill and shifting. No issues have been identified by mechanics but I have found several forums on line with drivers reporting similar…
What component or system failed or malfunctioned, and is it available for inspection upon request? The transmission slams down into gear from 9th to 8th gear. It also slams in stop and go traffic from 4-5, 5-6. It is available for inspection. How was your safety or the safety of others put at risk? The transmission jerks hard enough to move you in your seat and could cause accidental breaking or…
The contact owns a 2021 Ford Expedition. The contact state while driving 55 MPH, there were abnormal sounds coming from the engine and the transmission. The temperature gauge warning light was illuminated. The vehicle was taken to a Chevrolet dealer twice to be diagnosed. The contact was informed that the transmission needed to be replaced. The transmission was replaced, and the vehicle was…
The contact owns a 2021 Ford Expedition. The contact stated that while driving at 45 MPH, the engine overheated. The message “Drive Mode Inoperable” was displayed. The contact pulled over for 20 minutes, and the vehicle was restarted. The vehicle was towed to the local dealer, who confirmed that parts were on back order for NHTSA Campaign Number: 22V346000 (Engine). The vehicle was diagnosed, and…
Have had jerky shifts and hard down shifts while driving 2021 Ford Expedition. Told dealership and was told it was normal. Then went in for oil change told the dealership about lose of power while shifting and hard shifts they advised to have transmission fluid changed. Not even 3 weeks later while pulling out onto a busy road my vehicles engine revved very high but the transmission never engaged…
While attempting to pass a slower moving vehicle and changing from the right lane to left, I attempted to accelerate past the vehicle when the check manual light appeared on the vehicle display dashboard and I lost all power. I had no acceleration and no power from the gas pedal, after gliding past the slower vehicle and completely taking my foot off the gas pedal, the truck reset itself and…
The transmission is a major issue. I have had it in the shop 3 or 4 times now and still experiencing issues. The vehicle goes in and out of gear, doesn’t always accelerate when giving it gas, jerks when slowing down/downshifting. Makes a loud noise during downshifting at times, and the list goes on. Ford knows there are problems and refuses to address the issue, applies a computer update to…
The contact owns a 2021 Ford Expedition. The contact stated that while driving at various speeds, the vehicle would hesitate upon the depression of the accelerator pedal without warning. During one failure, the contact shifted the vehicle from drive(D) to park(P) and the vehicle began to roll backward as though the vehicle were in neutral(N). The contact then shifted the vehicle back to drive(D)…
Had powertrain trouble with your 2021 Ford Expedition?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2021 Ford Expedition?
It's a documented issue but not catastrophic. 86 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Across the 15 complaints that reported odometer mileage, most powertrain failures cluster between 20,000 and 89,035 miles, with the median around 78,000. A quarter of owners report trouble before 20,000; a quarter make it past 89,035. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain 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.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2021/Ford/Expedition.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.