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Vehicle speed controlPart report

2015 Toyota Sienna Vehicle speed control Problems

Complaints
3about this part
Share
1%of 233 total for the year
Median mileage
30,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the vehicle speed control of the 2015 Toyota Sienna, 1% of the 233 complaints for this model year. Where a mileage was given, the median is 30,500 miles. 1 of these say a crash was involved, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“My Sienna van sometimes responds very late to acceleration. This becomes a problem on highways specifically during the merging. Acceleration paddle has to be pressed very hard, for first few seconds there is no response from engine then latter it suddenly accelerates. This makes you miss judge the time required to merge on highways and can cause accidents. This has been happening since few months. I am providing tentative date below.”

NHTSA complaint #11316319, filed 2020-03, 48,000 miles

“I was at a stop light when I slowly started to lift my foot from the brake pedal. The engine started revving up and accelerate. I pressed the brake pedal normal , then harder when it would not stop revving. I looked down to see if I was hitting the gas pedal by accident. I was not, about after 5 seconds it stop revving. I went about a foot and nobody was in front of me. I going to have it checked out by my dealer. This happened before and I thought it was driver error .When I thought I was hitting the gas pedal and brake pedal. …”

NHTSA complaint #11475590, filed 2022-07

“The contact owned a 2015 Toyota Sienna. The contact stated that the cruise control failed to deactivate when the brake pedal was depressed. As a result, the vehicle was involved in a front impact collision. The air bags deployed. The contact sustained a severe head injury, the front seat passenger sustained a broken nose and cracked ribs, and the rear seat passenger sustained minor injuries. Medical attention was required. A police report was filed. The vehicle was destroyed and towed to a salvage yard. The manufacturer was notified of the failure. The failure mileage was approximately 13,000. …”

NHTSA complaint #11104018, filed 2018-06, 13,000 miles

Related service bulletins

Vehicle speed control: other model years

YearComplaintsShare of year
202276%
2021106%
201937%
201857%
201764%
201623%
201531%
2014117%
201363%
2012114%
2011203%
20101911%
2009136%
20085112%
2007288%
2006505%
2005625%
20041115%
20031110%
2002106%
200195%
2000206%
199952%
199883%

Other parts of the 2015 Toyota Sienna

Body and structure
61 complaints
Other or unknown
48 complaints
Electrical system
44 complaints
Brakes
18 complaints
Engine
16 complaints
Wheels
14 complaints
Transmission and drivetrain
12 complaints
Steering
11 complaints
Air bags
9 complaints
Seat belts
8 complaints
Suspension
8 complaints
Fuel system
7 complaints

← All problems reported for the 2015 Toyota Sienna

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology