TSB: Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN plates (the metal plate riveted to dashboard) (see Figure 1) for most 1979 ? 2023 model year vehicles may be available provided the requests meet the criteria listed in this Service Bulletin. Follow the Procurement Procedure in this bulletin to request a replacement certification label or VIN plate.
full bulletin at NHTSA ↗2010 Toyota Prius cruise control problems
severe Owners of the 2010 Toyota Prius have filed 216 NHTSA complaints about the cruise control, typically surfacing around 5,000 miles at roughly $600 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See cruise control across all vehicles →
Failure mileage
Complaints
216
Recalls
0
Avg fix
$600
| Model year | cruise control complaints |
|---|---|
| 2006 Prius | 59 |
| 2007 Prius | 81 |
| 2008 Prius | 112 |
| 2009 Prius | 56 |
| 2010 Prius (this page) | 216 |
| 2011 Prius | 21 |
| 2012 Prius | 20 |
| 2013 Prius | 16 |
| 2014 Prius | 12 |
27crashes
1fire
4injuries
When does it fail?
Of the 216 cruise control complaints filed for the 2010 Toyota Prius, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 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
Of the 13 model years of Toyota Prius we track for cruise control problems, this one carries the most owner complaints on file — 216.
Owners have filed 216 cruise control 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 cruise control 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.
TOYOTA: ACCELERATOR PEDAL SENSOR ASSEMBLY INFORMATION REGARDING THE INSPECTION, REMOVAL, AND INSTALLATION, IF LUBRICATION OR OIL, IS APPLIED.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2010 Prius attracted 216 complaints centered on a cluster of acceleration and braking failures. Most common are brief surges or loss of braking feel when drivers hit bumps or potholes while pressing the brake—owners describe feeling the car lurch forward unexpectedly at 10–30 mph, particularly in winter or on rough pavement. This behavior often started within the first few months and happened frequently enough that some owners changed their driving routes.
Separate from those are full-blown unintended acceleration events where the car accelerates hard on highways or during parking maneuvers, with brakes that either don't respond initially or respond slowly even with full pedal pressure. Several owners report having to shift to neutral, press the park button, or turn off the engine to regain control. A handful describe accelerator pedals that felt stuck.
Cruise control problems round out the pattern: some owners struggle to get cruise to disengage when braking (requiring harder pressure than expected), while others report erratic behavior from the radar cruise control triggering on road construction materials. A few post-recall complaints describe acceleration surging *after* the ABS software update was installed.
Dealerships consistently told owners the braking surges are normal hybrid operation (regenerative braking shutting off during wheel slip), and several refused to acknowledge a problem. Toyota's official response emphasized this was designed behavior, though owners contest that explanation given their driving experience. Owners also cite an unacknowledged customer support bulletin for a brake fluid accumulator issue (DTC C1391) that Toyota has not formally recalled.
Same Toyota Prius cruise control reports on nearby years: 2007 · 2008 · 2009 · 2011 · 2012
Failure modes owners describe
Unintended acceleration when braking on bumps/potholes
Car surges forward or accelerates when driver is braking, especially when hitting potholes, bumps, speed bumps, or metal plates in the road. Owners apply brake expecting deceleration but experience brief acceleration or loss of braking feel instead.
When: Most incidents reported in first year of ownership (2009-2010 model year); occurs at low to moderate speeds (10-30 mph), particularly during winter conditions or on bumpy road surfaces
Symptoms owners cite: Sudden forward surge when braking over uneven surfaces; Loss of braking feel momentarily after hitting bump while braking; Pulsating or jerky brake sensation; Car continues forward despite brake application; Brief acceleration feeling on bumpy roads
Codes mentioned: C1391 (abnormal leak in brake fluid accumulator)
Repairs/costs cited: Toyota field technical specialists told owners this is 'normal operation' — regenerative braking disables when impending wheel slip is detected, creating sensation of acceleration. ABS actuator ECU software updates performed via recall; owners report problem persisted after updates. Dealerships unable to replicate issues during test drives. One owner cited brake fluid accumulator issue with DTC C1391.
Recalls/TSBs owners mention: Software update for MG ECU and Power Management ECU (TECH 20799, AGG09A 0.7); ABS recall for delayed braking. Toyota maintains behavior is designed operation. No formal recall issued for acceleration during braking on bumps; instead classified as 'customer support bulletin' rather than safety recall.
Cruise control disengagement delay/failure
Cruise control does not shut off promptly when brake is applied. Drivers must press brake harder than expected or multiple times to disengage. Some owners report cruise control will not re-engage after being used once.
When: Occurs during initial use of cruise control on freeways and highways; affects vehicles from early production (September 2009 purchase dates)
Symptoms owners cite: Cruise control requires harder brake pressure to disengage; Lurch forward if brake released before cruise fully disengages; Cruise control fails to re-engage after one use without turning vehicle off or shifting to neutral; Brake lights may not illuminate when slowing down due to cruise kill switch linkage
Repairs/costs cited: Owners on priuschat.com forum report fixing issue themselves by moving cruise control disengagement point higher on brake pedal travel. Brake light/cruise kill switch are mechanically linked; improper switch positioning causes both symptoms.
Recalls/TSBs owners mention: Dealership responses: 'operating normally' and 'this is how the 2010 model operates.' Toyota has not issued recall for this issue.
Full unintended acceleration events
Vehicle accelerates without driver input, often dramatically, resulting in loss of control. Driver unable to stop acceleration even with heavy braking. Some events involve cruise control, others occur at low speeds or in reverse. Vehicles may reach dangerous speeds before stopping.
When: Reported throughout 2009-2010 model year; range from very early ownership (under 1,000 miles) to later model years (2016); occurs during highway driving, parking lot maneuvers, and city driving
Symptoms owners cite: Sudden rapid acceleration from cruise control at highway speeds; Accelerator pedal stuck or unresponsive to release attempts; Brake does not work or responds very slowly to full depression; Vehicle continues accelerating despite shifting to neutral, pressing park button, or turning off engine; Uncontrolled acceleration while backing or at low speeds; Engine revving in reverse for no apparent reason
Repairs/costs cited: One owner had to manually pull accelerator pedal up manually after event. Several owners reported shifting to neutral and turning off engine as methods to regain control. Owners cite need to press park button or engage parking brake to stop vehicle. One owner after recall: 'IT INTERMITTENTLY ACCELERATES WITHOUT MY PROMPTING AFTER HITTING A BUMP. THIS ACCELERATION IS AS INTENSE AS THE CAR SEEMS TO ALLOW...AND CAN'T BE SUPPRESSED BY THE BRAKING SYSTEM.' Dealers found no mechanical issues; Toyota investigator blamed simultaneous brake/accelerator pedal depression (operator error). Multiple owners reject this explanation given driving history and circumstances.
Recalls/TSBs owners mention: Toyota press release 2/4/2010 claimed problem fixed on all vehicles sold after January 2010; owners with September 2009 purchases still experienced issues. Recall TECH 20799 for motor generator and power management software; owners report continuation of acceleration after this update. Toyota customer service response: 'operator error' or normal ABS operation.
Brake failure or severely reduced braking
Brakes lose effectiveness or fail entirely, particularly on bumpy roads, during winter conditions, or when shifting from regenerative to friction braking. Brakes may not respond or respond very slowly even with full pedal depression.
When: Early ownership period; more common during winter/icy conditions and on roads with potholes, uneven pavement, or manhole covers; occurs at all speeds from very low (parking) to highway speeds
Symptoms owners cite: No brake response initially despite pedal depression; Delayed braking requiring multiple brake applications; Brakes 'catching' or pulsating rather than smooth deceleration; Temporary loss of braking power when hitting bumps while braking; ABS light illuminating during braking incidents
Codes mentioned: C1391 (brake fluid accumulator issue)
Repairs/costs cited: One owner cited DTC C1391 — abnormal leak in brake fluid accumulator — and noted Toyota classified this as 'customer support bulletin' rather than full recall, with expiration date on campaign. Owners unable to stop vehicles, resulting in curb strikes, building collisions, and near-misses with other vehicles and pedestrians.
Recalls/TSBs owners mention: ABS recall issued (mentioned in multiple narratives as addressing 'delayed braking'). Toyota told owners failure is regenerative braking system disabling when wheel slip detected — normal operation. Campaign for brake issue classified as customer support bulletin (not formal recall) with expiration date; affected owners who moved reported never receiving notification letters.
Shift lever malfunction (park to drive engagement)
Gear shift frequently fails to engage drive when shifted from park, requiring multiple attempts or other interventions to move vehicle.
When: Occurs intermittently throughout ownership; one owner called Safety Connect SOS button due to inability to shift
Symptoms owners cite: Shift from park to drive requires multiple attempts to engage; No indication of cause (no doors ajar warnings); Temporary engagement after turning vehicle off and back on
Repairs/costs cited: Owner eventually succeeded after calling Safety Connect SOS for roadside assistance and continuing to attempt shifting during call.
Recalls/TSBs owners mention: Unknown; owner sought dealership diagnosis.
Cruise control malfunction and radar false triggers
Cruise control fails to function correctly, or dynamic radar cruise control triggers false obstacle detection on construction materials and road debris, causing unwanted braking or erratic speed changes.
When: Occurs while driving on highways with cruise control engaged; radar false triggers reported on roads with metal construction plates
Symptoms owners cite: Cruise control light flashes erratically on dashboard; Unwanted acceleration and deceleration while on cruise control; Shrieking beep and brake application for non-existent obstacles; 'BRAKE' warning illuminates dashboard during false detection; Cruise control will not disengage by tapping brakes or pulling cancel handle
Repairs/costs cited: Owner with construction plate incidents noted radar cruise control may be working as designed (detecting metal plates as obstacles), suggesting design flaw rather than malfunction. Owner recommended other drivers be made aware of false triggers.
Recalls/TSBs owners mention: None documented for radar false triggers. Cruise control malfunction: dealership stated 'operating as designed' after three repair visits.
Hybrid system failures and battery issues
Regenerative braking system fails to function, hybrid system shuts down unexpectedly, or battery requires replacement shortly after purchase.
When: Battery replacement shortly after purchase (within first months of ownership); hybrid system failure reported at various mileages during highway driving and after ABS recall updates
Symptoms owners cite: Hybrid system warning light illuminates; Loss of regenerative braking function; Cruise control stops working after hybrid system issues; Check hybrid system warning during highway driving; Vehicle loses power and decelerates uncontrollably
Repairs/costs cited: One owner had battery replaced under warranty shortly after purchase. Hybrid system shutdown on Florida Turnpike required towing. After ABS recall, one owner reported: 'AFTER EACH INCIDENT I PHONED THE LOCAL DEALERSHIP...TOYOTA...ASKING THEM TO EXPLORE AND TEST VARIOUS THINGS RELATED TO THE DUAL PEDAL FAIL SAFE, THE COMPUTER, SNAPSHOTS OF EVENTS ON THE COMPUTER ETC.'
Recalls/TSBs owners mention: Battery covered under warranty. Hybrid system failures referred to dealer investigation with Toyota corporate involvement in later incidents.
Engine revving during low-speed parking and reverse operations
Engine revs excessively or vehicle accelerates when backing slowly out of parking spaces or when battery recharging initiates while parked.
When: Occurs during initial months of ownership; happens when starting from park or during reverse maneuvers at very low speeds
Symptoms owners cite: Intense revving noise when backing out of parking spot; Engine kicks in to recharge battery while in park, causing slight forward/backward jerk; Unexpected lurch forward when battery charging initiates while foot on brake
Repairs/costs cited: Owner stated no recollection of pressing accelerator pedal during reverse revving incidents; suspects electronics/software rather than mechanical throttle. Owner compensated by releasing brake in stages.
Recalls/TSBs owners mention: Dealership test drive with service manager reported 'no problem found.' Toyota was contacted but owner did not receive formal response.
Synthesized from 216 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 3 most recent
I have owned a 2010 prius for about a month, and have driven just over 1000 miles on it. There have been three separate incidents now where my brakes have experienced a sudden failure while decelerating. Each time occurred right after hitting a pothole or a bump in the road. Passengers in my car have reported a feeling of the brakes "catching" or "jerking" while driving on bumpy roads. The three…
Tl* the contact owns a 2010 Toyota prius. During brake application while making a left turn onto a gravel road , the vehicle surged forward. Identical failures occurred three times. The dealer was contacted and they stated that they did not have any reports of the failure. The vehicle has not been diagnosed. The failure mileage was 2800. The current mileage was 6000. Updated 01/29/10 *bf…
I have a 2010 Toyota prius, when I am trying to stop and hit a pothole, or manhole cover or the streets are wet, the car's brakes will disengage temporarily. It is scary and I've almost had a few accidents. Please look into this. *tr
Had cruise control trouble with your 2010 Toyota Prius?
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 2010 Toyota Prius?
It's a meaningful issue. 216 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 150 complaints that reported odometer mileage, most cruise control failures cluster between 2,500 and 12,000 miles, with the median around 5,000. A quarter of owners report trouble before 2,500; a quarter make it past 12,000. 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/2010/Toyota/Prius.
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.