When vehicle is placed in park while on, vehicle rolls forward . Put vehicle in park on the side of the road to answer a phone call. Was pulled up behind another vehicle and car rolled forward, and rear ended vehicle in front of me. The police were notified but no citation was given Another time vehicle was in park and running and ran over somebodies foot. very unacceptable
2010 Ford Mustang powertrain problems
severe 12 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Complaints
12
Recalls
0
Avg fix
$2,500
1crash
1injury
What stands out
No new NHTSA powertrain complaint has been filed on this vehicle in over 3 years — the issue may be aging out of the active population.
The failure pattern owners describe
Buyer takeaway: 2010 Mustangs show extensive transmission engagement problems (especially 2nd/5th gear and reverse), throttle body/wrench light faults that come and go without codes, and critical safety issues including spontaneous airbag deployment, unintended acceleration, and vehicles rolling forward in park. Multiple dealership visits often fail to resolve problems, and Ford has denied warranty coverage in some cases.
2010 Mustang powertrain complaints span transmission, throttle, axle, and safety systems. Owners report consistent difficulty engaging 2nd, 3rd, 4th, and 5th gears—some requiring coasting and re-engaging the clutch to shift into reverse. Grinding and knocking noises accompany shifting, and shifters shake or pop out of gear at highway speeds. Dealers have replaced hydraulic clutches, slave cylinders, throttle bodies, transmissions, solenoids, and main computers with limited success; some dealers dismiss complaints as normal.
Throttle body and electronic control faults trigger wrench warning lights and limp mode, often with no stored diagnostic codes. Symptoms appear and disappear unpredictably during highway driving. One owner reported the gas pedal rapidly depressing to the floor three times over six months, accelerating the vehicle to 80 mph unintentionally.
Rear axle assemblies have seized and failed; one owner's replacement failed within days. A drive shaft broke in half; Ford denied warranty coverage citing aftermarket performance parts. A passenger airbag deployed without impact, injuring the occupant. One vehicle rolled forward repeatedly while in park while running, causing a rear-end collision and injury to a bystander. Transmission shifters have locked up, triggering anti-theft system lockouts that prevent engine restart.
Same Ford Mustang powertrain reports on nearby years: 2007 · 2008 · 2011 · 2012 · 2013
Failure modes owners describe
Transmission shift engagement failure (2nd and 5th gear)
Transmission fails to properly engage into 2nd and 5th gear; requires repeated shop visits to diagnose and repair.
When: Early ownership; GT500 model reported issue within months of purchase (Feb 2010)
Symptoms owners cite: Difficulty shifting into 2nd gear; Difficulty shifting into 5th gear; Repeated transmission shop visits
Repairs/costs cited: Vehicle brought to shop multiple times; specific repairs not detailed in narrative
Transmission grinding and reverse engagement trouble
Manual transmission exhibits grinding noise and difficulty engaging into reverse and 1st-to-2nd transitions; multiple component replacements attempted without resolution.
When: V6 coupe model; timing not specified
Symptoms owners cite: Difficulty shifting from 1st to 2nd gear; Difficulty shifting into reverse (requires coasting and re-engaging clutch); Grinding noise from transmission; Shifter knocking noise; Vehicle jumps forward when shifting; Shifter shakes and pops out of 5th gear on freeway
Repairs/costs cited: Hydraulic clutch replaced, slave cylinder replaced, throttle body replaced, thermostat replaced; dealer states symptoms are normal
Recalls/TSBs owners mention: Dealer and Ford Motor Company Customer Service advised issue is normal; recommended waiting for 'catastrophic event' or trading in vehicle
Uncontrolled throttle acceleration
Gas pedal rapidly and unexpectedly depresses to floor without driver input, causing engine RPM spike and unintended acceleration.
When: Occurred Oct 27, 2014 and 2 more times over following 6 months
Symptoms owners cite: Gas pedal rapidly depresses to floor; Vehicle accelerates to 80 mph unintentionally; Engine RPM skyrockets; Issue recurs intermittently
Limp mode and wrench light fault
Vehicle enters limp mode with wrench warning icon illuminated during highway driving at 60 mph; multiple sensor and component replacements performed without resolving issue.
When: At approximately 107,000 miles
Symptoms owners cite: Vehicle stalls and enters limp mode; Wrench icon illuminates; Sluggish acceleration; Sluggish gear changing
Repairs/costs cited: Throttle body, input/output sensors, accelerator pedal sensor, throttle position sensor, cam and crank shafts replaced; vehicle remained in limp mode after repairs
Wrench light and throttle body intermittent fault
Wrench warning light illuminates intermittently with sluggish acceleration and gear changes; issue appears and disappears without diagnostic codes.
When: Early mileage; owner notes 12k mileage throttle body failures reported
Symptoms owners cite: Wrench light illuminates; Sluggish acceleration; Sluggish gear changes; Loss of power; Intermittent nature; problem comes and goes
Third gear engagement failure
Vehicle will not engage into third gear unless vehicle is nearly at complete stop; dealer unable to locate failure despite two service visits.
When: At 150 miles; current mileage 11,000
Symptoms owners cite: Third gear will not engage unless vehicle nearly stopped
Repairs/costs cited: Traction control module replaced once; second module believed defective; module on back order with no ETA
Transmission grinding in 1st and 4th gear
Vehicle makes grinding noise when shifting into 1st and 4th gear at low speeds; initial repair attempt unsuccessful.
When: At 200 miles; current mileage 19,563
Symptoms owners cite: Grinding noise when shifting to 1st gear at 30 mph; Grinding noise when shifting to 4th gear at 30 mph
Repairs/costs cited: Pin and shifter replaced on first visit; transmission, solenoid, and main computer replaced on second visit
Recalls/TSBs owners mention: Manufacturer made aware but offered no assistance
Rear axle assembly failure and seizure
Entire rear axle assembly fails and seizes in housing; replacement assembly fails again within days on same highway.
When: December 14, 2010 at 12,000 miles; replacement failed December 27, 2010
Symptoms owners cite: Entire rear axle assembly goes out; Vehicle leaves driver stranded
Repairs/costs cited: Rear axle assembly replaced; replacement axle failed again; engineers cite rear end carrier and axles seizing in housing
Transmission shifter lockup and anti-theft system activation
Transmission shifter locks up when vehicle in park while running; cutting off engine locks entire anti-theft system, preventing restart.
When: August 5, 2012 and August 10, 2012
Symptoms owners cite: Shifter locks up in park while car running; Entire anti-theft system locks; Vehicle will not start after engine shut off; Shifter locked while car running at traffic light
Repairs/costs cited: Battery replaced ($133); tow service suspected anti-theft device activation
Vehicle rolling forward in park
Vehicle rolls forward while placed in park while running, resulting in unintended collision and injury.
When: Timing not specified; two separate incidents reported
Symptoms owners cite: Vehicle rolls forward while in park and running; Vehicle rear-ended car in front; Vehicle ran over someone's foot
RPM hunting and poor acceleration at highway speed
RPM behaves erratically at highway speed; vehicle runs at RPM 3 instead of normal drive RPM and has difficulty accelerating above 60 mph.
When: Driving 70 mph on expressway during vacation
Symptoms owners cite: RPM acting up at highway speed; RPM stuck at 3 instead of normal; Hard time picking up speed after 60 mph
Drive shaft breakage
Drive shaft broke completely in half; Ford denied warranty coverage citing presence of high-performance aftermarket parts on vehicle.
When: Timing not specified
Symptoms owners cite: Drive shaft broke completely in half
Recalls/TSBs owners mention: Ford denied warranty coverage based on presence of high-performance parts
Passenger airbag spontaneous deployment
Passenger seat airbag deployed without any impact or collision; caused injury to passenger. Occurred while vehicle was at dealership for unrelated service.
When: July 24, approximately 9:30 pm; vehicle had no impact during deployment
Symptoms owners cite: Airbag deployed without impact; Passenger injured
Recalls/TSBs owners mention: Ford instructed owner to contact insurance company; stated nothing further could be done
Synthesized from 12 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
Had powertrain trouble with your 2010 Ford Mustang?
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 2010 Ford Mustang?
It's a meaningful issue. 12 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $2,500.
At what mileage does the powertrain typically fail?
Based on the 12 complaints filed, powertrain issues most often appear around 40,829 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
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/2010/Ford/Mustang.
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.