Last updated: 2026-10-10

Audi Q8 vs Lexus GX: Reliability Compared

Audi Q8 reliability comparison

Audi Q8

64
GoodReliability score: 64 out of 100, rated Good
VS
More ReliableLexus GX reliability comparison

Lexus GX

80
ExcellentReliability score: 80 out of 100, rated Excellent

The Lexus GX beats the Audi Q8 on reliability by a large margin. Q8 owners file far more complaints, led by alternator failures. Those failures can kill power and steering assist while driving. GX complaints are few and scattered.

How Do the Audi Q8 and Lexus GX Generations Compare?

Every Q8 on the US market belongs to one generation, known as 4M, which has run since 2019. Model years 2019 to 2023 were the original design, and 2024 brought a facelift. The weakest Q8 years, 2019 and 2021, fall in that original run. The GX moved from the second generation (J150) to the third (J250) in 2024. The J150 ran from 2010 to 2023, with facelifts in 2014 and 2020. That makes 2022 a late, mature J150 year, while 2024 was the first year of the redesign and is one of the weakest.

Verdict

The Lexus GX is more reliable than the Audi Q8, scoring 80/100 vs 64/100.

Reliability clearly favors the Lexus GX, and the gap is large. The deciding factor is how much goes wrong and how badly. Q8 owners filed 21.4 complaints per 10,000 sold, against 1 for the GX, and the Q8 has 43 recalls to the GX's 6. The Q8's top problem is alternator failure that cuts power and steering assist while driving, and it often ends in a tow. GX complaints are few and scattered.

Key Differences

  1. 1Lexus GX has 37 fewer total recalls
  2. 2Lexus GX has 20.4 fewer complaints per 10k sold
  3. 3Lexus GX scores 16 points higher in reliability

Category Scoreboard

0Audi Q8
—
3Lexus GX
Reliability ScoreTotal RecallsComplaint Rate

Audi Q8 vs Lexus GX: Which Is More Reliable?

Audi Q8 vs Lexus GX at-a-glance reliability comparison
MetricAudi Q8Lexus GX
Reliability Score64/10080/100
Years Tracked89
Total Recalls436
Complaints per 10k Sold21.41
Year Wins08

What Are the Common Problems With the Audi Q8 and Lexus GX?

Electrical failure dominates the Audi's record. Alternators fail without warning, warnings turn red, and the car loses power, steering assist and stability control, sometimes at highway speed. Water pump failure can leak coolant and lead to bills of $5k to $7500, and some 3.0L turbo engines fail outright. Two steering complaints are crash-linked. GX complaints are scattered: brake shake on long grades, dark gauge clusters, and a few stalls. One GX electrical complaint is crash-linked. The GX stalling reports are serious but rare.

Audi Q8 vs Lexus GX common problem areas comparison
ComponentAudi Q8Lexus GX
ELECTRICAL SYSTEM6.4Average0.1Very Low
POWER TRAIN5.1Average—None
STEERING1.8Low—None
ENGINE1.8Low—None
UNKNOWN OR OTHER1.1Low0.1Very Low
FUEL SYSTEM1.1Low—None
SERVICE BRAKES0.6Very Low0.1Very Low
BACK OVER PREVENTION0.2Very Low—None
FORWARD COLLISION AVOIDANCE0.2Very Low—None
SEAT BELTS0.2Very Low—None
SUSPENSION—None0.1Very Low
FUEL/PROPULSION SYSTEM—None—None

Complaints per 10,000 units sold, aggregated across all tracked model years from NHTSA owner reports.

How Does Audi Q8 vs Lexus GX Reliability Compare by Year?

Audi Q8 vs Lexus GX year-by-year reliability scores
YearAudi Q8Lexus GXEdge
202670/1000R / 0C84/1000R / 0CLexus GX
202567/1002R / 1C78/1001R / 7CLexus GX
202464/1008R / 16C77/1002R / 13CLexus GX
202367/1003R / 2C81/1000R / 5CLexus GX
202265/1007R / 5C81/1000R / 7CLexus GX
202160/10014R / 28C80/1000R / 1CLexus GX
202063/1004R / 25C81/1000R / 4CLexus GX
201953/1005R / 103C78/1001R / 8CLexus GX

Best years to cross-shop: The 2023 Audi Q8 scored 67/100 and the 2023 Lexus GX scored 81/100 — the strongest shared model years that have been on the road for at least two years, where available.

Who Should Buy the Audi Q8 vs the Lexus GX?

Pick the Lexus GX if you want the lower-risk used buy, especially if you drive long highway miles, where a sudden power loss is dangerous. Target 2022, one of its strongest years. Treat 2026 with care, since a new year has had little time to collect complaints. Avoid 2018 and 2024, its weakest years. Before buying, ask about brake shake on steep grades and check that the gauge cluster stays lit. Pick the Audi Q8 only if you have a specific reason to prefer it and can absorb a surprise repair. Skip 2019 and 2021, the weakest years. Before signing, confirm the alternator and water pump history, and check for open recalls, since parts back orders left some owners waiting weeks or months. Budget for a possible tow and a long shop stay. Newer 2025 and 2026 cars look better, but their clean record is partly a matter of time.

Audi Q8 vs Lexus GX: Common Questions

Is the Audi Q8 more reliable than the Lexus GX?
No. The Lexus GX is clearly more reliable. It has 53 owner complaints against 180 for the Q8, and 6 recalls against 43. The Q8's alternator failures, water pump leaks and power loss while driving have no match in the GX's smaller set of reports.
Which has more recalls, the Q8 or the GX?
The Audi Q8 has far more. Federal recall records show 43 across its 8 model years, while the Lexus GX has 6 across 9 model years. Some Q8 owners also report waiting months for parts on open repairs, including a fuel system campaign.
What is the most common Audi Q8 problem?
Electrical trouble, mainly alternator failure, leads with 54 complaints. A warning appears, then the car can lose power, turn signals, stability control and steering assist. Many cars are towed, and some owners waited weeks or months for a back-ordered alternator.
Does the Lexus GX have any serious problems?
Few, but some are serious. One engine complaint and two fuel system complaints describe stalling, including at highway speeds above 50 mph. One electrical complaint is crash-linked. Others involve brake shake on steep grades and gauge clusters going dark. The counts are small.
Which GX and Q8 model years should I avoid?
Avoid Q8 model years 2019 and 2021, its weakest. For the GX, avoid 2018 and 2024. The newest years of both look good partly because they have had less time to collect complaints, so do not treat them as proven.

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How we score the Audi Q8 and Lexus GX

Scores weight complaint severity at 35%, repair costs at 30%, recall impact at 20%, and the spread of complaints across systems at 15%, with complaint counts adjusted for US sales. Read the full methodology.

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