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Electrical systemPart report

2012 Lexus RX350 Electrical system Problems

Complaints
4about this part
Share
12%of 33 total for the year
Median mileage
49,994miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the electrical system of the 2012 Lexus RX350, 12% of the 33 complaints for this model year. Where a mileage was given, the median is 49,994 miles. 2 a fire, 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 cfei (certified fire & explosion investigator) fire lieutenant/investigator with the city of ft. Lauderdale's fire dept, who also responded to my 911 call, had pointed out and explained to me the intensity of flame, heat and burn pattern in the engine and stated that this was caused by a mechanical engine malfunction. What happened: I had just driven my 2012 Lexus RX350 a short distance on the highway when I pulled into a 7-11 parking lot not far from the gas pumps and put the car in park. …”

NHTSA complaint #11337569, filed 2020-07, 92,988 miles

“I was told that a circut breaker failed under the dash ,as to the cause. I bought this car new and had some strange electrial issues. The car was a total loss.”

NHTSA complaint #10452684, filed 2012-03, 7,000 miles

“July 11th 2017 at around 220pm pst, the Lexus RX350 2012, experience a very dangerous failure. Earlier that week I noticed issue with the battery, where it would take one or more pushes to the start button for the car to turn on. But on this date, I had just parked the car on a road with an slight incline, I did not enable the emergency break the car was turned off and the keys with me. I had dropped off a friend and helped her take a few things inside the house. …”

NHTSA complaint #11010062, filed 2017-07

“Hi, I would like to inform you about a serious safety issue I discovered in the Lexus RX350, the car is keyless and you just need to push a button to start and shut off the engine. The safety problem is that the car will shut off when pushing the button even if the car is still in d=drive and the car will roll back if parked on a slope like a driveway etc. It is extremely dangerous as kids can be behind the car. Please check this safety issue. Thank you”

NHTSA complaint #10505922, filed 2013-04

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2022220%
2020114%
201913%
201749%
201659%
201537%
2014213%
20131119%
2012412%
201113%
20101213%
200977%
20081713%
2007117%

Other parts of the 2012 Lexus RX350

Vehicle speed control
10 complaintsBrakes
6 complaintsAir bags
4 complaintsEngine
4 complaintsTransmission and drivetrain
4 complaintsElectronic stability control
3 complaintsFuel system
3 complaintsSeat belts
2 complaintsBody and structure
2 complaintsOther or unknown
1 complaintsSteering
1 complaintsSuspension
1 complaints

← All problems reported for the 2012 Lexus RX350

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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