1999 Lexus GS300 problems & reliability
38 owner complaints filed with NHTSA for the 1999 Lexus GS300. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
3 complaints report injuries (3 injured).
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Vehicle Speed Control → | 12 | 32% |
| Suspension | 7 | 18% |
| Electrical System | 6 | 16% |
| Service Brakes | 6 | 16% |
| Engine and Engine Cooling | 3 | 8% |
| Power Train | 3 | 8% |
| Service Brakes, Hydraulic | 3 | 8% |
| Steering | 3 | 8% |
| Fuel/propulsion System | 2 | 5% |
| Unknown OR Other | 2 | 5% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 99,050 miles (middle 50% between 69,397 and 157,675 miles), based on 24 complaints that included mileage.
Complaints by incident year
What owners report
“"takata recall" all door locks must be manually locked at each door....windows open at times when key unlocks car....both keys are loose at the base and are held together by tape.”
Unknown OR Other · filed May 6, 2019
“Tl* the contact owns a 1999 lexus gs300. After the vehicle was started, the abs and vsc warning indicators illuminated. In addition, while driving various speeds, a fuel odor emitted from the vehicle without warning. The vehicle was taken to an independent mechanic where it was diagnosed that the brake booster failed…”
Fuel/propulsion System · filed Nov 18, 2016
“I got brakes put on at the lexus of palm beaches off of okeechobee blvd last year and paid over 475 dollars for all parts. As a result 7 months later my brakes began to squeak so I called them and I was not assisted with new parts except just brake spray which is not good. The parts are defective and I have a 1 year…”
Service Brakes · filed Nov 12, 2016
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Technical service bulletins
53 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 1999 Lexus GS300. The 10 most recent:
Lexus Safety Recall and Service Campaign - Technician Certification Requirements 4.13.2022
Safety Recall 22 · Service Bulletin/Repair Instructions · issued Apr 13, 2022
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…
Lexus PRO19-02 - · Service Bulletin/Repair Instructions · issued Jan 12, 2022
Safety Recall and Service Campaign - Technician Certification Requirements
Lexus Safety Re · Service Bulletin/Repair Instructions · issued May 1, 2020
TSB: OBSOLETE NOTICE April 06, 2020: This bulletin is now obsolete. Please see L-SB-0008-20. Replacement Certification Labels and VIN Plates
L-SB-0179-17 Obs · Service Bulletin/Repair Instructions · issued Apr 6, 2020
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…
L-SB-0008-20 · Service Bulletin/Repair Instructions · issued Apr 6, 2020
TSB: Replacement Certification Labels. OBSOLETE NOTICE November 28, 2017: This bulletin is now obsolete. Please see L-SB-0179-17.
L-SB-0048-08 Obs · Service Bulletin/Repair Instructions · issued Dec 5, 2017
TSB: The 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 will be erased.
L-SB-0025-14 · Service Bulletin/Repair Instructions · issued Jul 7, 2015
LSB: When servicing interior electrical switches and components, please note the precautions in this bulletin to avoid damaging electrical components and switches. Many lubricants, cleaners, and automotive chemicals…
L-SB-0066-11 Rev · Service Bulletin/Repair Instructions · issued Apr 10, 2015
LSB: When servicing interior electrical switches and components, please note the precautions in this bulletin to avoid damaging electrical components and switches. Many lubricants, cleaners, and automotive chemicals…
L-SB-0066-11 Rev · Service Bulletin/Repair Instructions · issued Apr 10, 2015
TSB: The 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 will be erased.
L-SB-0025-14 Rev · Service Bulletin/Repair Instructions · issued Nov 14, 2014
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
No NHTSA recall campaigns name the 1999 Lexus GS300 in our current data. Recalls may apply only to certain VIN ranges — always confirm with a VIN check.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 1999 Lexus GS300?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 99,050 miles — budget accordingly if the car is approaching that mileage.