2018 Lexus LS Electrical system Problems
- Complaints
- 3about this part
- Share
- 20%of 15 total for the year
- Median mileage
- 6,300miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the electrical system of the 2018 Lexus LS, 20% of the 15 complaints for this model year. Where a mileage was given, the median is 6,300 miles.
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 collision avoidance system blows fuses and stops working, but the light on the dash continues to indicate that everything is working. In other words, there is no way to learn that the collision system is offline unless you're willing to simulate a near certain collision (which I did with the dealer in my car and he finally acknowledged the problem), or having an actual accident. This is clearly a design flaw. If the fuse is blown, obviously the system should show an error when it's engaged - not a green indicator.”
NHTSA complaint #11209751, filed 2019-05“The vehicle exhibited 3 episodes of premature battery failure. Mileage of the vehicle is 6000 miles. Without any warning the car would just not start from a gas pump or such locations in the middle of the road. This is a dangerous problem because there was no warning that the battery is running low or there is any problem. Car runs 100 miles every day. …”
NHTSA complaint #11446122, filed 2022-01Related service bulletins
- 11029870Feb 2, 2026OBSOLETE NOTICE February 2, 2026: This bulletin is now obsolete. Please see L-SB-0004-26.
- 11028717Jan 23, 2026Some 2018 – 2025 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…
- 11022963Aug 19, 2025Some customers may experience operational difficulties with some telematics features which they cannot resolve on their own. These resources, in conjunction with the Repair…
- 11020656Jun 13, 2025The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service…
- 11019329Apr 2, 2025To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on…
- 11018326Apr 2, 2025To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on…
- 11016780Feb 10, 2025The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys…
- 11015494Feb 10, 2025The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys…
- 11014181Jan 14, 2025Some 2018 – 2025 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…
- 10247795Nov 1, 2023TSB: Some 2018 ? 2024 model year Lexus vehicles may exhibit a hybrid system warning lamp occurring in below-freezing temperatures (below 32°F or 0°C). After performing a Health…
Electrical system: other model years
Other parts of the 2018 Lexus LS
3 complaintsOther or unknown
3 complaintsWheels
3 complaintsEngine cooling
2 complaintsFuel system
2 complaintsForward collision avoidance
1 complaintsSeats
1 complaintsSteering
1 complaintsTires
1 complaintsTransmission and drivetrain
1 complaints
← All problems reported for the 2018 Lexus LS
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