The gas pedal will be stuck accelerating, and will not stop. The mat was not even on the floor when the incidents occurred. Driving down interstate and also a back road, hit the break does not stop or disengage the vehicle; tap pedal does not disengage speeds up more and remains stuck. This is the 3rd time this has happened, and luck is the only reason an injury has not occurred. *tr
2008 Ford Mustang cruise control problems
severe 17 complaints filed with NHTSA · avg repair $600 · see cruise control across all vehicles →
Failure mileage
Complaints
17
Recalls
0
Avg fix
$600
6crashes
3injuries
When does it fail?
Of the 17 cruise control complaints filed for the 2008 Ford Mustang, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 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
No new NHTSA cruise control complaint has been filed on this vehicle in over 12 years — the issue may be aging out of the active population.
The failure pattern owners describe
Owners of 2008 Mustangs describe two distinct throttle failures. The first and most common is a stuck accelerator pedal that physically jams in the depressed position, forcing the engine to maintain high RPM (4000–8000+) with no driver ability to release it. The pedal won't return. Braking becomes ineffective; owners report brake pedals going to the floor with no stopping power. Shifting to Neutral is often the only way to slow the vehicle. Some owners freed the pedal by stomping it repeatedly or manually lifting it with their hand or foot; others had to turn the engine off. These incidents happen at highway speeds, during merging, in parking lots, and at low speeds—with no clear trigger.
The second failure is the opposite: the Check Engine light comes on and the throttle goes dead. The vehicle enters limp mode, crawling along at idle speed regardless of accelerator input. One owner reports this happening dangerously at highway speed.
A handful of narratives mention aftermarket floor mats, but most owners found their mats were not stuck under the pedal or had removed them before the failure occurred. One dealership blamed a floor mat despite the owner checking it; another diagnosed throttle electronics malfunction but said nothing could be done. Multiple crashes and near-misses are documented; some owners are now afraid to drive the vehicle.
Same Ford Mustang cruise control reports on nearby years: 2005 · 2006 · 2007 · 2009 · 2011
Failure modes owners describe
Stuck/sticking accelerator pedal
Accelerator pedal becomes stuck in a depressed position, causing the engine to remain at high RPM or continue accelerating. The pedal physically fails to return to idle. Owners report the pedal gets stuck to the floorboard or jams internally; multiple attempts to lift or manipulate the pedal may be required to free it.
When: Occurs at various speeds—highway, merging, low-speed turns, and parking—sometimes repeatedly on the same vehicle. No consistent mileage or age pattern reported across complaints.
Symptoms owners cite: Engine continues to accelerate despite driver releasing gas pedal; Accelerator pedal remains depressed and won't return to idle; High RPM (4000–8000+ RPM) with no driver input; Brake pedal loses effectiveness or has no effect on stopping the vehicle; Shifting to Neutral required to slow/stop vehicle; Tapping the accelerator makes the problem worse; Stomping/repeatedly pressing the gas pedal may temporarily release it
Repairs/costs cited: Owners who attempted manual intervention report lifting the pedal physically, removing aftermarket floor mats, and turning the engine off. One owner reported a Ford dealership diagnosed throttle electronics malfunction/stuck-open throttle but stated nothing could be done. Another owner had the vehicle towed but repair cause was not determined.
Recalls/TSBs owners mention: One owner reported Ford dealership said they could not repair the throttle electronics malfunction. Multiple owners indicate no recall or service bulletin mentioned in narratives.
Loss of accelerator response (limp mode)
Engine loses throttle response and vehicle enters a reduced-power or 'limp mode' state, forcing the vehicle to proceed only at idle speed regardless of accelerator input. Check Engine light illuminates when this occurs. This is the opposite failure mode from stuck acceleration.
When: Occurs sporadically at both high and low speeds. One instance specifically reported at highway speeds, creating a dangerous situation.
Symptoms owners cite: Check Engine light illuminates; Vehicle stops responding to accelerator pedal input; Engine only idles; vehicle crawls at idle speed; Throttle response completely lost; Unpredictable/sporadic recurrence
Codes mentioned: Check Engine light
Aftermarket floor mat interference (owner-attributed)
One owner explicitly reported that an aftermarket floor mat became lodged between the accelerator pedal and floorboard, causing unintended acceleration. However, multiple other owners found floor mats were not the cause despite initial suspicion, and one narrative notes that tapping the accelerator made the problem worse—inconsistent with mechanical mat interference.
When: Approximately 70,000 miles in the one case explicitly attributed to aftermarket mats.
Symptoms owners cite: Vehicle accelerates unexpectedly after aftermarket floor mat installation; Floor mat becomes wedged under accelerator pedal
Repairs/costs cited: Aftermarket floor mats were removed to prevent further incidents.
Synthesized from 17 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
Tl* the contact owns a 2008 Ford mustang. The contact stated that after installing aftermarket floor mats, the floor mat became lodged between the accelerator pedal and the floorboard, causing the vehicle to erroneously accelerate. The contact crashed into another vehicle as a result. The floor mats were removed to prevent any additional incidents. The manufacturer was not contacted about the…
Had cruise control trouble with your 2008 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 cruise control problem on the 2008 Ford Mustang?
It's a meaningful issue. 17 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $600.
At what mileage does the cruise control typically fail?
Across the 16 complaints that reported odometer mileage, most cruise control failures cluster between 45,000 and 110,200 miles, with the median around 50,000. A quarter of owners report trouble before 45,000; a quarter make it past 110,200. 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 $600 for cruise control 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 cruise control?
No active recalls currently cover cruise control 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/2008/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.