This service and repair manual is written to the 2017 Lexus RX 450h as Lexus built it, matched to the year, the 3.5L V6 hybrid (2GR-FXS) and the trim in your driveway, so the clearances, torque sequences and service values it lists are the ones set for this car and not an approximation borrowed from an adjacent model year.
Engines
- 3.5L V6 HYBRID Naturally Aspirated
Trims
- Base
- F Sport
Known issues on the 2017 RX 450h. No recalls are on federal record for the 2017 RX 450h. Owners have filed 57 complaints for the year, and Lexus has issued no technical service bulletins for it. The diagnostic steps and repair procedures behind the systems those owner reports point to are here.
Whether you are tracing one of those owner-reported symptoms or working a routine service interval, it keeps you on the OEM procedure and the correct specification for your 2017 RX 450h.
I was involved in a side collision accident and my car was determined to be total loss by the At-Fault's insurance company. I was lucky that my son and I came out with bruises and a few scratches but the main problem here is the airbags. It DID NOT deploy at all when it was hit. The force hit us from lane 1 all the way to lane 3 and damages to the structure near cabin was found by one of the vertified accident body shop. So yes, no airbags were deployed.
TL* THE CONTACT OWNED A 2017 LEXUS RX450H. THE CONTACT STATED THAT THE VEHICLE ACCELERATED FORWARD 120 FEET GOING BETWEEN 50 MPH, THE CONTACT DEPRESSED THE BRAKE PEDAL WHICH FAILED TO ENGAGE PROPERLY CAUSING THE CONTACT TO CRASH INTO A TREE, AS THE VEHICLE BOUNCED BACKWARDS AND CRASHED INTO THE CURB. ALL AIR BAGS DEPLOYED. THE CONTACT SUSTAINED MINOR INJURIES BRUISING TO THE RIGHT SIDE OF HER BODY. MEDICAL ATTENTION WAS CONTACTED BUT NOT NEEDED. THE CONTACT WENT TO THE HOSPITAL THE NEXT DAY FOR
I WAS SITTING AT A COMPLETE STOP FOR MORE THAN 45 MINUTES BEHIND A FATALITY ACCIDENT ON THE HIGHWAY THEY HAD CLOSED WHILE OCCASIONALLY REMOVING FOOT FROM BRAKE TO INCH FORWARD A FEW FEET A BEST AND THEN STOP AGAIN NEVER TOUCHING THE ACCELERATOR WHEN I REALIZED AT ONE POINT TRAFFIC BESIDE ME WAS MOVING, I THOUGHT, IT WAS MY RX 350 WHILE PRESSING BRAKE ALL THE WAY TO THE FLOOR WITH NO RESISTANCE I ATTEMPTED TO PUT THE CAR IN NEUTRAL TO SEE IF IT WAS SLOW ME DOWN AS AN UPCOMING CRASH WAS UNAVOIDABL
3 months before the accident the power steering light came on twice and went off. The day of the accident the brake light came on when I started the car that day. It disappeared when I was put in drive. I was entering onto the highway to merge with the traffic. Another car waiting for the light to turn green so he could enter also. My car didn’t stop because my brakes failed and the collision avoidance system didn’t work either. No sounds nor warnings. I have photos of the message that was displ
The contact owned a 2017 Lexus RX350. The contact stated while driving 45-50 MPH on the highway, another vehicle that lost control and crashed into the contact's front and side of the vehicle. The driver's front air bag did not deploy. The contact suffered minor injuries to the face from the glass front windshield, a cut and burn from the seatbelt, and a bruise to the arm. Medical attention was received. A police report was filed. The vehicle was towed to a tow yard. The vehicle was deemed and d
The contact owned a 2017 Lexus RX 350. The contact stated while making a left turn exiting a car wash, the vehicle unintendedly accelerated independently and crashed into the commercial building where it came to a stop. The brake pedal was depressed but the vehicle was in full throttle and failed to stop. The air bags did not deploy. No warnings light illuminated. No Medical Attention was needed. During the failure, the contact was the only occupant seated in the vehicle. The contact sustained
After slowly making a left into a parking space at Dunkin Donuts and trying to deploy my brakes, my car lunged forward spontaneously accelerating, jumped two curbs and hit a barrier and the window of the store. The impact of the crash wrecked my front end and the radiator was damaged and was laying on the ground. With this intense impact, the airbags did not deploy on impact. My insurance agency totaled the car. After the crash the warning came on the screen that the Collision System had malfunc
TL* THE CONTACT OWNS A 2017 LEXUS RX450H. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 5 MPH AND ATTEMPTING TO PARK THE VEHICLE, THE VEHICLE INDEPENDENTLY ACCELERATED WHICH CAUSED THE VEHICLE TO CRASH INTO A WALL. THE AIR BAGS DID NOT DEPLOY. THE CONTACT WAS NOT INJURED. THE VEHICLE WAS NOT TAKEN TO BE DIAGNOSED. THE VEHICLE WAS STILL WAITING TO BE REPAIRED. A DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS CONTACTED AND INFORMED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 27,00
Rear ended vehicle automatic braking did not activate
I was driving up a hill, turning on to a dirt road. I had my foot on the brake as I was going down hill, I bounce from the crevice on the dirt road. My car started going faster, I kept my foot on the brake trying to stop, but it did not STOP. I avoided hitting a parked car and slammed in to a K-rail. My car would not STOP.
NHTSA Safety Complaint – Seat Heater Defect Vehicle: 2017 Lexus RX 350 Mileage at purchase: 45,430 Purchase date: Feb. 17, 2025 Dealer: Lexus of Tacoma at Fife, WA Description of Problem: The driver’s seat heater does not function properly. It is slow to activate (5–6 minutes), then overheats uncontrollably even when set to “LOW.” On multiple occasions, the seat became hot enough to cause burns through clothing. Defect Confirmed by Dealership Service Staff: Dealership staff confirmed that the
I WAS TRAVELING ON INTERSTATE I - 5 IN PORTLAND, OREGON, AVERAGE SPEED OF 60 MILES PER HOUR WHEN MY BACK REAR TRUNK GLASS SHATTERED AND CONTINUE TO BREAK IN LITTLE PIECES. BECAUSE I WAS TRAVELING ON THE HIGHWAY , II RULED OUT ANY MALICIOUS ACT, JUST THE WINDOW SHATTERING FOR KNOW REASON.
Brakes make a squeaking sound when brakes applied. They are loud, this sound is not coming from brake pads or rotors. They are alarming and cause anyone to become startled and could cause crashes.
DAMPER SERVO SUB-ASSEMBLY, AIR CONDITIONER RADIATOR, NO. 2 Part Number: 8710608120 Which also called the bend door actuator failed on my 2017 RX450h at 80,000 mile.The part or door opens to mix hot air form the heating core and cold air to supply heat to the interior of the vehicle. When the bend door actuator part failed you have no heat and to replace it you have to he the dash removed (poor engineer design) and face bills for service over 6,000 dollars. This part failed appears to be prevalen
My vehicle has 39800 miles (64k kms). I have the exact same issue with my driver side heated seat. The lowest setting may take time to warm up then gets scorching hot. Eventually after heating it up, I will turn it off manually to stop heating it, as it burns. My wife also mentions that the passenger side as well doesn’t seem to heat much. At this low of kms, I should not have this issue but saw someone else have the exact same issue. I have not taken it to the dealer yet as I fear they wi
Showing the 15 most serious of 57 complaints filed with NHTSA.
