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Lexus · Full-Size SUV · 2024–2025

Lexus GX J300

Weaknesses, engine ratings and buying advice

★★★★★
5.0 / 5.0 · Based on 1 engine variants

Generations

Engine Overview

The Lexus GX J300 is available with one engine variant at 354 hp.

GX 550 · Petrol· 349 PS
2024 2025
Good Choice 3 weaknesses
Show all weaknesses →

The Lexus GX 550 (Petrol, 349 PS) has the V35A-FTS (3.5L Twin-Turbo V6) — rated: "Good Choice", 3 known weaknesses.

Vehicle Weaknesses

WeaknessCost
✖V35A-FTS Engine Bearing Recall

Machining debris from factory left in the engine block causes main bearing damage. Recall expanded to include 2024 GX 550. Approximately 127,000 vehicles affected across Toyota/Lexus models. Toyota replaces engines under recall at no charge. Symptoms include knocking, rough running, and complete engine failure at mileages as low as 5,000 miles.

Symptoms: Engine knocking, rough running, failure to start, loss of power while driving, metal debris in oil
Ad V35A-FTS recall GX 550engine bearing recall Lexus GX 550 2024
 Low
iTwin-Turbo V6 Refinement vs. V8

The V35A-FTS twin-turbo V6 is more powerful than the outgoing V8 but lacks the smooth, linear character. Some owners prefer the 1UR-FE V8 personality. Not a defect — a subjective character difference.

Symptoms: Turbo lag off the line, less linear power delivery, different exhaust note
Ad engine mount V35A-FTS GX 550exhaust system Lexus GX 550 twin turbo
 Low
NHTSA Owner Complaints
Average
22 complaints · 2024–2025
Electrical
5
Engine
5
Other
4
Body Structure
3
Powertrain
3

Top Reported Issues

⚠ Electrical (5 complaints)
⚠ Engine (5 complaints)
⚠ Other (4 complaints)
Source: NHTSA (nhtsa.gov) · 2026-04

Known Problems and Issues

A total of 11 weaknesses have been documented for the Lexus GX J300 (2024–2025) — 3 engine-related and 8 vehicle-related. Typical issues affect Other, Electronics, Suspension, Body. Considered reliable: V35A-FTS (3.5L Twin-Turbo V6).

What to watch out for with the Lexus GX? See the detailed listing of all engine and vehicle weaknesses in the sections above.

Frequently Asked Questions

What problems and weaknesses does the Lexus GX J300 have? +
The Lexus GX J300 has 3 known engine weaknesses and 8 vehicle weaknesses.
What should I look for when buying a used Lexus GX J300? +
faq.watch_a_solid
Which engine is recommended? +
Good choice: V35A-FTS (3.5L Twin-Turbo V6). The most reliable engine is the V35A-FTS (3.5L Twin-Turbo V6) with the lowest risk score. The most fun to drive is the V35A-FTS (3.5L Twin-Turbo V6).
Which Lexus GX J300 engine is the most reliable? +
The {code} ({displacement}) is the most reliable engine in the Lexus GX J300. It has the lowest risk score of all available engines and is rated "Good Choice". However, there are 3 known weaknesses to be aware of.
Which Lexus GX J300 engine is the most fun? +
The {code} ({displacement}) offers the most driving fun in the Lexus GX J300 — rated: "Fun to Drive!". {description} The GX 550 modernizes everything: twin-turbo V6, 10-speed automatic, new body, new interior. The V35A-FTS engine recall for machining debris and bearing failure affects 2024 models. Toyota is replacing engines under recall. If the recall is complete and the engine proves sound, the GX 550 is a significant upgrade. If not, the GX 460 with the proven 1UR-FE V8 is the safer used buy.
Is the Lexus GX J300 worth buying used? +
The Lexus GX J300 is a good choice as a used car — 1 of 1 engine variants are rated 'Good Choice'.
What horsepower variants are available for the Lexus GX J300? +
The Lexus GX J300 is available with engine variants from 354 to 354 hp. Petrol: V35A-FTS (3.5L Twin-Turbo V6).

Last updated: February 2026 · All information without guarantee