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Vehicle speed controlPart report

2006 Lexus GS300 Vehicle speed control Problems

Complaints
12about this part
Share
10%of 124 total for the year
Median mileage
28,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 12 complaints about the vehicle speed control of the 2006 Lexus GS300, 10% of the 124 complaints for this model year. Where a mileage was given, the median is 28,000 miles. 5 of these say a crash was involved, according to the filers. 1 recall campaign on record is filed under a similar system.

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.

“I drive a 2006 Lexus GS300. Last fall,as I backed out of my parking space - in a building - my car took off and hit a cement wall. ( at first, I thought I hit the gas pedal in error however, after what happened next, I knew that was not the case. Fortunately, there were no pedestrians in the parking lot. ) I put the car in drive and it took off again. Luckily, I hit a cement parking bumper that stopped me. All this took place in maybe 15 seconds or so. Not realizing there was anything terribly wrong with my car, I steered around the bumper. …”

NHTSA complaint #10324112, filed 2010-04, 17,000 miles

“A few months after I bought my 2006 Lexus GS300 in jan., 2006, I experienced the sudden acceleration of my car. I was passing a car and when I took my foot off of the gas pedal it continued to accelerate. I tried the brake but it seemed frozen..it didn't move at all. I quickly threw the car into neutral, and as I was about to hit the car in front of me, I shifted into park...it was the only way to get the car to stop. Then I turned the car off. The first time I attempted to start the car back up, it raced. On the second attempt it seemed to start up normally, and I drove it to work. …”

NHTSA complaint #10279800, filed 2009-08, 26,000 miles

“While bringing the car to a stop, I am experiencing a very hard downshift from 2nd gear to 1st gear. This hard downshift is so abrupt that it feels as if you were rear ended. Research shows this being an electronic failure in the electronic control module backed with hundreds of complaints of this exact issue to this particular year, make and model. In several cases, mentions of a class action lawsuit against toyota/Lexus have been mentioned. It's a costly, yet unnecessary repair caused by a flawed design within the electronic componentry.. …”

NHTSA complaint #11118525, filed 2018-08, 117,000 miles

“Uncontrolled acceleration of a 2006 Lexus gs 300 occurred during overtaking of another vehicle on a two lane us highway. Car was towed to a Lexus dealer (Lexus of ft. Wayne indiana) where it was determined that the driver's floor mat was jammed against the accelerator pedal. The dealer stated that this was the only case of this to their knowledge. After seeing the NHTSA report of recall regarding different Lexus vehicles with the same problem I suspect that NHTSA has not been informed of the potential for the problem to be more widespread, potentially requiring a broader recall effort. …”

NHTSA complaint #10204341, filed 2007-09, 15,000 miles

“2006 Lexus GS300. This event occurs when the cruise control is engaged. Suppose the speed is set at 70 MPH and I slow down to 67 MPH because of traffic. When I push the resume lever, the engine greatly speeds up and the transmission drops into a lower gear. The result is a lunge forward instead of a smooth increase in speed. Very dangerous.”

NHTSA complaint #10311549, filed 2010-02

Related recalls

Related service bulletins

Vehicle speed control: other model years

YearComplaintsShare of year
20061210%
2004233%
2003433%
2002538%
2001318%
20001440%
19991232%
19982542%
1995111%
1994233%

Other parts of the 2006 Lexus GS300

Exterior lighting
35 complaints
Engine
18 complaints
Transmission and drivetrain
13 complaints
Electrical system
12 complaints
Brakes
11 complaints
Steering
10 complaints
Fuel system
9 complaints
Other or unknown
7 complaints
Body and structure
7 complaints
Visibility (wipers, defrost, mirrors)
7 complaints
Tires
5 complaints
Electronic stability control
4 complaints

← All problems reported for the 2006 Lexus GS300

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