Toyota Sienna Service Brakes, Hydraulic Problems

Source: NHTSA · Updated Oct 15, 2026 · 262 complaints analyzed

Owners have filed 262 complaints with NHTSA about service brakes, hydraulic problems on the Toyota Sienna across 14 model years. The 1998 model year has the most (39). The words owners use most often: “brake pads” (8% of reports).

What owners describe

Phrases that appear unusually often in these complaints compared with complaints about other cars.

  • Brake pads: mentioned in 22 of 262 complaints (8%)
  • Applied brakes: mentioned in 21 of 262 complaints (8%)

How much does it cost to fix?

Owners who wrote down what they paid or were quoted put the typical service brakes, hydraulic repair on the Toyota Sienna at $2,500, and half of them between $1,500 and $3,050.

Based on 15 NHTSA complaints about this problem alone that state a repair bill or quote (2000–2011), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.

At what mileage do service brakes, hydraulic problems happen?

Based on 164 complaints that reported the odometer reading.

Under 10k miles35 · 21%
10k–25k miles37 · 23%
25k–50k miles33 · 20%
50k–75k miles26 · 16%
75k–100k miles19 · 12%
100k–150k miles11 · 7%
150k+ miles3 · 2%

How serious are the reports?

Of 262 complaints, 44 mention a crash, 13 an injury.

Toyota Sienna service brakes, hydraulic complaints by model year

Peak: 1998, with 39 complaints
1998: 391998391999: 141999142000: 322000322001: 152001152002: 192002192003: 122003122004: 392004392005: 282005282006: 192006192007: 132007132008: 132008132010: 4201042011: 132011132015: 220152

n = 262 complaints · Source: NHTSA

Model yearService Brakes, Hydraulic complaintsShare of that yearMedian miles
2015 Sienna21%52,978
2011 Sienna132%10,000
2010 Sienna42%8,500
2008 Sienna133%31,500
2007 Sienna134%30,500
2006 Sienna192%23,300
2005 Sienna282%34,500
2004 Sienna392%27,800
2003 Sienna1211%13,488
2002 Sienna1910%34,006
2001 Sienna158%22,420
2000 Sienna329%72,547
1999 Sienna147%56,000
1998 Sienna3913%106,000

When owners reported it

Peak: 2010, with 58 complaints
1998: 619981999: 212000: 1020002001: 102002: 1120022003: 232004: 2620042005: 162006: 1420062007: 122008: 820082009: 122010: 582010582011: 162012: 920122014: 22015: 220152016: 12021: 120212023: 22024: 120242026: 1

n = 262 complaints · Source: NHTSA

Related recalls (4)

Service brakes, hydraulic:foundation components:hoses, lines/piping, and fittingsJul 25, 2019 · NHTSA campaign 19V553000 · 303 vehicles

Model years: 2012, 2013, 2014, 2015, 2016, 2017, 2018

Problem: Vantage Mobility International, LLC (Vantage) is recalling certain 2012-2018 AMS Genesis wheelchair vans, built on a Toyota Sienna vehicles. The rubber brake hoses that attach to the rear wheel assembly may be too short, causing them to rub against the rear axle trailing arm.

Risk: The contact may cause failure of the rear brake hoses, resulting in a loss of vehicle control and reduced braking ability, increasing the risk of a crash.

Fix: Vantage will notify owners, and dealers will install a set of rear brake hoses that will provide the proper clearance, free of charge. The recall began December 16, 2019. Owners may contact Vantage customer service at 1-800-488-9082.

Service brakes, hydraulic:foundation components:hoses, lines/piping, and fittingsJun 4, 2019 · NHTSA campaign 19V410000 · 705 vehicles

Model years: 2014, 2015, 2016, 2017, 2018, 2019

Problem: Braun Corporation (Braun) is recalling certain 2014-2019 Toyota Sienna mobility van conversions. The brake lines may have incorrect tube nut fittings installed, which may cause a pressure drop within the braking system.

Risk: The reduction in the braking system pressure may cause a loss of braking power in the rear braking system, increasing the risk of crash.

Fix: Braun has notified owners, and dealers will install an adaptor to correct the issue, free of charge. The recall began June 25, 2019. Owners may contact Braun customer service at 1-800-488-0359.

Service brakes, hydraulic:power assist:vacuumApr 3, 2018 · NHTSA campaign 18V211000 · 6,046 vehicles

Model years: 2017

Problem: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018 Toyota Camry and Highlander vehicles, 2017 Toyota Sienna and Tacoma vehicles and 2017 Lexus RX350 vehicles. During the manufacturing process, the oil galley in the rotor for the brake booster vacuum pump assembly may have been improperly machined possibly resulting in a sudden loss of brake assist.

Risk: A sudden loss of braking assist can increase the risk of a crash.

Fix: Toyota will notify owners, and dealers will replace the brake booster vacuum pump, free of charge. The recall began on May 9, 2018. Owners may contact Toyota customer service at 1-888-270-9371, or Lexus customer service at 1-800-255-3987. Toyota's numbers for this recall are J0K/JLD.

Service brakes, hydraulic:pedals and linkagesDec 13, 2010 · NHTSA campaign 10V620000 · 94,126 vehicles

Model years: 2011

Problem: Toyota is recalling certain model year 2011 sienna vehicles. The brake stop lamp switch is mounted on a small bracket welded on the left side of the service brake pedal support assembly. Due to its proximity to the parking brake pedal, in limited circumstances the stop lamp switch bracket could be damaged by the operator's foot during parking brake application.

Risk: This could result in brake drag with associated brake noise, vibration, and/or illumination of the brake warning light. Braking effectiveness could be reduced increasing the risk of a crash.

Fix: Dealers will replace the bracket assembly free of charge. Toyota plans to mail an interim owner notification in the middle of january 2011, to advise owners of the recall. A second letter will be mailed when parts are available to complete repairs. Owners may contact toyota at 1-800-331-4331.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

The glide pins in the calipers came loose and one of the pins fell out (left front drivers side). As a result it caused the caliper to seize and smoke. It got hot and mangled the lower left control arm bushing. I bought a new glide pin and that one stayed it, but the right side (original part) came…

Received Jul 9, 2026 · NHTSA complaint 11749365

steering component that breaks, causing a driver to lose control.

Received Mar 3, 2024 · NHTSA complaint 11575190

The contact called on behalf of his mother who owns a 2015 Toyota Sienna. The contact stated while his mother was driving 15 MPH, the brake pedal was depressed but failed to respond, causing the vehicle to crash into the rear of another occupied vehicle. There was no warning light illuminated. The…

Received Feb 1, 2023 · NHTSA complaint 11505051

Every time I go around a curve, the ABS TRC and vehicle beeps like I'm sliding. It happens on every curve. Its very dangerous. I have unplugged the sensor under the front passenger seat and all problems go away. i have replaced this part and it still has not fixed the problem. with part unplugged i…

Received Jan 28, 2023 · NHTSA complaint 11504238

The contact owns a 2007 Toyota Sienna. The contact stated while driving 40 MPH going up a curvy road, the ABS service warning light illuminated, and the vehicle lost motive power for several seconds before independently regaining motive power. The contact stated that the failure was intermittent…

Received Dec 3, 2021 · NHTSA complaint 11442574
Toyota Sienna
Toyota Sienna (XL40) Washington DC, USA. Representative photo; appearance varies by model year. Photo: OWS Photography, CC BY 4.0, via Wikimedia Commons.

Frequently asked questions

Do all Toyota Siennas have service brakes, hydraulic problems?

No. NHTSA has 262 owner complaints about service brakes, hydraulic for the Toyota Sienna. Complaint data shows that the problem is reported, not how many of all cars sold are affected.

Was there a recall on the Toyota Sienna service brakes, hydraulic?

Yes: 4 safety recalls list service brakes, hydraulic. Check your VIN on NHTSA.gov to see whether the fix was done on your car.

How much does it cost to fix service brakes, hydraulic problems on the Toyota Sienna?

Owners report a typical cost of $2,500 (half paid between $1,500 and $3,050), from 15 complaints that state a repair bill or quote, in 2026 dollars.

What do owners say about service brakes, hydraulic problems on the Toyota Sienna?

The most frequent phrase is “brake pads”, in 22 of 262 complaints, followed by “applied brakes” (21).

Other Toyota Sienna problems

See all Toyota Sienna problems.