The contact owns a 1999 Lexus GS400. The contact stated while driving at 1 mph, the vehicle accelerated independently. The brakes failed to engage while depressed on the brake pedal almost causing a collision. The contact informed the independent mechanic of the failure, but the vehicle was not diagnosed nor repaired. The manufacturer was not made aware of the failure. The failure mileage was 67,000.
The worst 1999 Lexus GS problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Body2
- Acceleration1
- Airbags1
- Brakes1
- Engine1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Body2
- Acceleration1
- Airbags1
- Brakes1
- Engine1
- Seat belts1
- Transmission1
- Wheels1
Recalls
No recalls on record for this model year.
Technical service bulletins for the 1999 Lexus GS 12
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Lexus Safety Recall and Service Campaign
- POL: This consolidated Tire Warranty Guide contains the complete warranty terms for all brands of ground...
- Safety Recall and Service Campaign
- Supersession notice
- Obsolete notice
- Supersession notice
- Auto matic Transmission Replacement kPrecautions
- Immobilizer and Smart Key Reset
- Immobilizer and Smart Key Reset.
- Windshield Wiper Blade Maintenance and cleaning
1999 Lexus GS fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 3.0L 6‑cyl | RWD | 18 | 23 | 20 |
| 4.0L 8‑cyl | RWD | 16 | 22 | 18 |
What 1999 Lexus GS owners say
Most recent owner complaints, unedited.
In the process of making a u-turn on a private narrow street the automobile RPM jumped from an almost idle condition to over 3000 RPM. Every effort to brake the car and shift to neutral proved ineffective within the distance of approximately 30 feet. The automobile jumped the curb and struck a low garden wall forcing an engine stop. The airbags failed to deploy. My estimate of the speed when striking the wall was 30 to 35 MPH. I have pictures which show the brake streaks as well as total damage scene. In addition a next door neighbor heard the entire sequence of events and can verify the extent of the braking effort. To date lexus has stated that it was not an automobile defect. I am looking into appropriate legal action. The 1999 gs300 is identified as a candidate for uncontrolled accelerations in the recently complete toyota uncontrolled acceleration class action suite but my event is closed out due to the date of occurrence.
I was driving going home from the store and my lower ball joint failed and damage my wheels, fender and driver side door won't open all the way due to the damage on the fender. Thank god I wasn't in the freeway or with my kids when this happened.
I found out that I couldn't extend the back seat belts (passenger).
Compare the 1999 Lexus GS
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Questions about the 1999 Lexus GS
Is the 1999 Lexus GS reliable?
Owners have filed 4 complaints about the 1999 Lexus GS, 1.3 times a typical GS model year.
What is the most common problem with the 1999 Lexus GS?
Body and structure, with 2 complaints. Next is acceleration (1).
How many recalls does the 1999 Lexus GS have?
No recalls on record.
What gas mileage does the 1999 Lexus GS get?
Official estimates for the 1999 Lexus GS range from 18 to 20 mpg combined. The most efficient version (3.0L 6-cyl, RWD) gets 18 city and 23 highway.
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