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Vehicle speed controlPart report

2019 Lexus RX350 Vehicle speed control Problems

Complaints
4about this part
Share
13%of 31 total for the year
Median mileage
2,300miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the vehicle speed control of the 2019 Lexus RX350, 13% of the 31 complaints for this model year. Where a mileage was given, the median is 2,300 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.

“The car abruptly jerks forwards or slows down when switching gears. There is a knocking sound when you accelerate. The RPM increase to 6k-7k before the next gear is engaged and then car abruptly thrusts forward. The car accelerates and decelerates randomly. This car cannot be driven safely in this condition. The car only have 1116 miles and is a 2019 model.”

NHTSA complaint #11193046, filed 2019-04, 1,116 miles

“On a recent 2500 mile trip on 3 separate occasions while on interstate hiways and passing a vehicle the emergency braking system engaged automatically with warning lights and buzzers going off. This occurred with no other vehicles anywhere around for a quarter mile or more. On one occasion it occurred while driving in the right lane and with no vehicles in sight. Lexus special tech inspected the vehicle and had some calibrations performed but they will not tell me what they found in data captured by the vehicle computer or what actions they took and why they think the vehicle is safe to drive.”

NHTSA complaint #11373952, filed 2020-11, 1,800 miles

“The contact owns a 2019 Lexus RX350. While driving with the adaptive cruise control activated and set at 72 MPH, the driver reduced the speed to approximately 60 MPH when switching lanes. After releasing the accelerator pedal, the vehicle continued to accelerate past the set cruise control speed of 72 MPH and continued to accelerate to approximately 80 MPH. After deactivating the cruise control feature, the vehicle continued to accelerate and the rpms increased before the speed eventually was reduced. The cause of the failure was not determined. …”

NHTSA complaint #11252457, filed 2019-08, 2,800 miles

“The contact owns a 2019 Lexus RX350. The contact stated while parking the vehicle in a parking space, as he disengaged the brake pedal to complete the parking, the vehicle accelerated inadvertently and crashed into the pillar of a building. There were no warning lights illuminated. There were no injuries sustained. The vehicle was towed to a tow lot, then it was towed to an independent mechanic. A police report was filed. The dealer was not made aware of the failure. The manufacturer was made aware of the failure and a case was opened. The vehicle was not diagnosed nor repaired. …”

NHTSA complaint #11425162, filed 2021-07, 21,000 miles

Related service bulletins

Vehicle speed control: other model years

YearComplaintsShare of year
2019413%
2018317%
2017613%
201659%
2015717%
2013915%
20121030%
2011827%
20103840%
200966%
20081512%
20072213%

Other parts of the 2019 Lexus RX350

Fuel system
20 complaintsTransmission and drivetrain
4 complaintsBrakes
3 complaintsEngine
3 complaintsForward collision avoidance
2 complaintsOther or unknown
2 complaintsBody and structure
2 complaintsElectrical system
1 complaints

← All problems reported for the 2019 Lexus RX350

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