2018 Lexus RX350: common problems
The maker issued 74 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 74
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Equipment | 0 | 0 | 25 |
| Electrical system | 0 | 0 | 11 |
| Engine and cooling | 0 | 0 | 11 |
| Structure | 0 | 0 | 11 |
| Engine | 0 | 0 | 8 |
| Latches, locks, linkages | 0 | 0 | 6 |
| Fuel system | 0 | 0 | 5 |
| Powertrain | 0 | 0 | 5 |
| Air bags | 0 | 0 | 3 |
| Electronic stability control | 0 | 0 | 3 |
| Wheels | 0 | 0 | 3 |
| Backover prevention | 0 | 0 | 2 |
| Visibility | 0 | 0 | 2 |
| Forward collision avoidance | 0 | 0 | 1 |
Comparison
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- SPOC
Effective immediately, Lexus is issuing a stop sale on part numbers 85212-YZZ2L-LX & 85212-YZZ2M-LX, which may have a quality concern relating to a missing kit component (mispack). Lexus is requesting the return of ALL…
- DL
On December 20, 2022, a settlement of claims for certain low pressure fuel pumps was approved by the federal court. The settlement includes Lexus?s agreement to provide a Customer Support Program for certain 2013-2020…
- TSB
Some 2013 ? 2020 model year Lexus vehicles may exhibit a hard start and/or MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs): ?DTC P0171 and/or P0174 (System Too Lean Bank 1/Bank 2)…
- TSB
Some 2016 ? 2022 model year RX 350 vehicles may exhibit a droning noise from the exhaust system at takeoff or under light acceleration. Countermeasure parts are available to reduce the droning noise. Follow the Repair…
- OBSOLETE NOTICE February 02, 2023
This bulletin is now obsolete. Please see L-SB-0003-23.
- TSB
This Service Bulletin provides a procedure to properly perform the Techstream ?Control the Injection Mode? active test in some 2016 ? 2022 model year Lexus vehicles equipped with an FKS engine
- TSB
Some 2017 ? 2022 model year RX 350 and RX 450h vehicles may exhibit water leaking from the moon roof when going through a high-pressure rinse cycle car wash. In most cases, a small amount of water is either missing or…
- TT
Some 2019-2022 model year RX350/L AWD equipped vehicles may have had the LX 75W-85 GL-5 gear oil used during assembly. ?The difference between the LT and LX type gear oil is only relevant to models equipped with…
- Lexus Safety Recall and Service Campaign - Technician Certification Requirements 4.13.2022
- TT
Some 17-22MY RX350 vehicles with engine serial numbers that start with F or G, may experience an engine oil leak condition from the No.2 Oil pan. This issue is currently under investigation. Please take detailed…
- TT
Some 2017-2022 RX350 vehicles may experience an engine oil leak condition from the No.2 Oil pan. This issue is currently under investigation. Please take detailed pictures of the location of the oil pan leak condition…
- TSB
Some 2005 ? 2022 model year Lexus vehicles that have undergone water intrusion may exhibit a condition in which a musty smell is present. Follow the procedures in this bulletin to remediate the odor and address this…
NHTSA lists 74 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2018 Lexus RX350?
There are no owner complaints in the NHTSA data for this year; the data comes from 74 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2018 Lexus RX350?
NHTSA lists 74 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2018 Lexus RX350 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2018 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.