2018 Lexus IS 350C: common problems
The maker issued 13 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 13
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Equipment | 0 | 0 | 8 |
| Air bags | 0 | 0 | 2 |
| Powertrain | 0 | 0 | 2 |
| Wheels | 0 | 0 | 2 |
| Electrical system | 0 | 0 | 1 |
| Engine | 0 | 0 | 1 |
| Tires | 0 | 0 | 1 |
Comparison
What to check before buying
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Wheels. Wheel runout, cracks, signs of a wheel strike.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Lexus Safety Recall and Service Campaign - Technician Certification Requirements 4.13.2022
- 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…
- POL
This consolidated Tire Warranty Guide contains the complete warranty terms for all brands of ground and spare tires currently in use by Lexus. This information must be kept near the point of vehicle sale and be…
- POL
UPDATES TO THE 2014-2021 LEXUS UNIVERSAL FLAT RATE MANUAL
- Lexus Safety Recall and Service Campaign - Technician Certification Requirements
- TSB
Some 2018 ? 2020 model year Lexus vehicles equipped with the Enform? 2.0 Navigation System require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and system software. The SST is…
- TSB
Vehicles may display evidence of a fluid leak or fluid seep from powertrain components. This bulletin explains how to determine the differences between a fluid leak versus a fluid seep. Cases that are determined to be…
- TSB
SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin Nos. ST004-01, SU001-08, and L-SB-0174-08. The aforementioned bulletins are obsolete, and any printed versions should be…
- Safety Recall and Service Campaign - Technician Certification Requirements
- TSB
OBSOLETE NOTICE April 06, 2020: This bulletin is now obsolete. Please see L-SB-0008-20. Replacement Certification Labels and VIN Plates
- TSB
SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin Nos. L-SB-0048-08, PG007-07, PG016-01, PG015-01, PG004-97, PG003-97, PG003-93, PG002-90, L-SB-0048-08, PG007-07, PG016-01…
- TSB
February 06, 2020: This bulletin is now obsolete. Please see L-SB-0003-20.
NHTSA lists 13 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 IS 350C?
There are no owner complaints in the NHTSA data for this year; the data comes from 13 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2018 Lexus IS 350C?
NHTSA lists 13 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 IS 350C 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.