Problems · NHTSA complaints
2009 Lexus GS450H Hybrid problems
Owners filed 2 complaints about the 2009 Lexus GS450H Hybrid with NHTSA between Sep 2016 and Jul 2020. The most-cited component is service brakes (1).
Complaints
2
Filed with NHTSA
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
0
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Service brakes1
- Engine1
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 9, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
1
0
0
0
1
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2016 | 1 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 0 |
| 2020 | 1 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Service brakes
1 report
“WHILE DRIVING THE VEHICLE, THE BRAKE ACTUATOR FAILED, CAUSING IT TO BE UNSAFE TO DRIVE. THIS IS A KNOWN ISSUE WITH THOUSANDS OF LEXUS/TOYOTAS PRODUCED AROUND THIS TIME. INSTEAD OF WARRANTY ENHANCEMENT (WHICH MY CAR NO LONGER QUALIFIES FOR), THIS SHOULD BE A RECALL SO ALL VEHICLES WITH THIS FAULTY COMPONENT CAN BE PROPERLY REPAIRED. THE COST TO REPAIR WAS QUOTED FROM THE DEALER AT $3800!”
Engine
1 report
“THE ENGINE HAS BEEN BURN OIL RAPIDLY. I WENT FOR AN OIL CHANGE AND THE TECH INFORMED ME THAT THE ENGINE IS DOWN TO 2 QUARTZ OF ENGINE OIL. I HAVE KEPT THE CAR ON SCHEDULED MAINTENANCE. ONE OF THE CUSTOMER AS THE DEALER SHIP THAT I HAD A CONVERSATION STATED THAT HE HAD A SIMILAR PROBLEM WHERE LEXUS CAN'T FIGURE OUT THE PROBLEM UNTIL THE ENGINE EXPLODED. I WENT ONLINE TO CHECK AND IT SEEMS LEXUS GS MODEL FROM 2006-2011 HAVE SIMILAR PROBLEMS. LEXUS REFUSED TO ACKNOWLEDGED THE PROBLEM BECAUSE OF THE COST FOR THE FIX. IT IS IRRESPONSIBLE FOR LEXUS NOT TO RECALL THE CAR BECAUSE THE COST.”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 9, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.