1999 Lexus LS400 Engine cooling Problems
- Complaints
- 1about this part
- Share
- 5%of 22 total for the year
- Median mileage
- 91,080miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine cooling of the 1999 Lexus LS400, 5% of the 22 complaints for this model year. Where a mileage was given, the median is 91,080 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.
“I am reporting this because it might provide a clue to the toyota racing engine problem. On each of two days before I took my 1999 Lexus 400 to the dealer for repairs, the engine would race at an estimated 4,000+ rpms and emitted a grinding sound as the car was started. After turning off the engine with the key, the car would restart without a problem. Strangely, the dealer did not record this particular complaint, but stated that diagnosis revealed that starter was failing. I was charged $990 for replacement and repairs. …”
NHTSA complaint #10319258, filed 2010-03, 91,080 milesEngine cooling: other model years
Other parts of the 1999 Lexus LS400
12 complaintsElectrical system
4 complaintsBody and structure
2 complaintsTires
2 complaintsBrakes
1 complaintsInterior lighting
1 complaintsSeat belts
1 complaintsSteering
1 complaintsTransmission and drivetrain
1 complaints
← All problems reported for the 1999 Lexus LS400
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