2018 Lexus RX problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
25 owner complaints analyzed
0 distinct recall campaigns
42,548 mi median reported failure mileage
Scope: 2018 model year. Data snapshot: . 3 complaints include usable failure mileage.
Most common problems
Service Brakes is the most frequently named component, appearing in 6 of 25 complaints (24.0%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 5 | 20.0% |
| Transmission and shifting | 1 | 4.0% |
| Engine operation | 1 | 4.0% |
| Fuel system concerns | 1 | 4.0% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Service Brakes | 6 |
| Unknown Or Other | 6 |
| Electrical System | 3 |
| Engine | 3 |
| Structure:Body:Door:Handle:Interior | 3 |
| Fuel/Propulsion System | 2 |
| Vehicle Speed Control | 2 |
| Air Bags | 1 |
Service Brakes: 6; Unknown Or Other: 6; Electrical System: 3; Engine: 3; Structure:Body:Door:Handle:Interior: 3; Fuel/Propulsion System: 2; Vehicle Speed Control: 2; Air Bags: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 0 |
| 25,000 to 49,999 | 3 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 0; 25,000 to 49,999: 3; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
25,000 to 49,999 miles has the most reports with usable mileage (3). 22 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 8 |
| 2025 | 7 |
| 2026 | 4 |
2021: 1; 2022: 2; 2023: 3; 2024: 8; 2025: 7; 2026: 4
Pattern summary
Service Brakes leads the component reports. Braking behavior appears in 5 complaint narratives. Transmission and shifting appears in 1 complaint narratives. Engine operation appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11466703 · 2022-05-31 (May 31, 2022)
Car displaying parking brake malfunction and and cruise control malfunction intermittent when using the parking break, seem that TSB (T-SB-0168-19) was open for Camay from 2018 to 2020 exhibiting the same issue but not for this car. This a safety concern since parking brake becomes disable, this issue resets after restarting the car again.
Owner-reported narrative. Look up ODI 11466703 at NHTSA ↗
Owner report 11504501 · 2023-01-30 (January 30, 2023)
Lexus 2018 Rx450hl is known to have issue with brake actuator. A faulty brake actuator causes the car to fail sudden stop. It’s definitely a safety issue. Lexus have technical service information bulletin(tsib) for this issue since 2019. They never contact the owner to replace the faulty part. So if the car is under warranty they will fix the problem with no cost. But if the warranty pass the threshold, they are charging the costumer 3.5k to replace it. It’s an absolute horrible business practices. This part is a manufactured defect and it’s …
Owner-reported narrative. Look up ODI 11504501 at NHTSA ↗
Owner report 11588297 · 2024-05-12 (May 12, 2024)
If you by mistake forget to put your car on Parking the transmission does not lock by itself creating a hazard of movement of the vehicule that can cause an injury's or even worse. That was reported to the dealer and dismissed the issue as normal.
Owner-reported narrative. Look up ODI 11588297 at NHTSA ↗
Owner report 11661605 · 2025-05-17 (May 17, 2025)
The fuel pump sensor electrically shorted. The assembly failed. (tube assembly, fuel suction w/ pump and gage), gasket, fuel suction tube set. It is available for inspection. The car could stall at any time because the fuel pump sensor cannot accurately determine the fuel level or how much fuel is being injected into the engine. There was a warning light. Lexus covered two other fuel pump safety issues for this make and model (2018 RX 450h), one under a manufacturer recall and one through a customer support program. This is a THIRD defect with…
Owner-reported narrative. Look up ODI 11661605 at NHTSA ↗