GMC Yukon 5th gen (T1XX) (2021 – 2025)

Reliability score : 7.2/10

The 5th generation GMC Yukon (T1XX) marks a major turning point for the large American SUV. Launched in 2021, it shares its platform with the Chevrolet Tahoe/Suburban and the Cadillac Escalade. The great revolution of this generation is the adoption of an independent rear suspension (multi-link), replacing the historic solid axle. This transforms the road handling and comfort, and frees up a colossal amount of space for 3rd-row passengers and the trunk. Available in standard or extended (Yukon XL) versions, it comes in luxurious (Denali, Denali Ultimate) or off-road oriented (AT4) trims. Although its family and towing capabilities are exceptional, its overall reliability is judged as average by North American organizations (J.D. Power, Consumer Reports), weighed down by early electronic te

✅ Strengths

Gigantic interior space, particularly in the 3rd row and in the trunk (XL version).
Exceptional ride comfort thanks to the independent rear suspension (and optional air suspension/Magnetic Ride).
High towing capacities (up to 8,400 lbs / 3,800 kg).
3.0L Duramax diesel engine offering rare fuel efficiency in this segment.
Intuitive infotainment system with Google integration (since 2022).

⚠️ Weaknesses

Reliability of the gasoline V8 engines marred by the cylinder deactivation system (DFM).
Oversized dimensions making parking and city driving (especially in Europe) very complex.
Gargantuan fuel consumption on the gasoline V8 engines.
Interior finish of some lower trims (SLE/SLT) below price standards.
Numerous manufacturer recalls (electronics, assembly) on the early production years (2021-2022).

🎯 Verdict

The 5th generation GMC Yukon is a behemoth with undeniable family and road capabilities. However, from a reliability standpoint, it requires caution. The gasoline V8 engines (5.3L and 6.2L), although pleasant, are overshadowed by the chronic fragility of their hydraulic lifters (DFM system) and a recent major recall on the 6.2L. The 2021 and 2022 models also suffered teething problems with an avalanche of electronic recalls. Buying advice: If you must buy a Yukon, favor models from 2023 onwards (stabilized software) and opt without hesitation for the excellent 3.0L Duramax Diesel engine, which offers the best reliability in the lineup and fuel consumption cut in half compared to the V8s. If you insist on the V8, demand an impeccable maintenance history with very frequent oil changes.

Common issues

Problèmes du système d'infodivertissement (écran tactile, logiciel) Low

🔧 Dès l'achat – 50 000 km

💶 0 – 500 €

Vérifier les mises à jour logicielles et le bon fonctionnement de l'écran.

Comportement irrégulier de la transmission 10 vitesses (à-coups, hésitations) Medium

🔧 10 000 – 60 000 km

💶 0 – 800 €

Tester la transmission à différentes vitesses et charges.

Dysfonctionnement du hayon électrique (ne s'ouvre/ferme pas, bruit) Low

🔧 20 000 – 80 000 km

💶 200 – 600 €

Tester l'ouverture/fermeture du hayon plusieurs fois.

Messages 'Service Power Steering' ou assistance de direction réduite Medium

🔧 30 000 – 70 000 km

💶 0 – 1 200 €

Vérifier l'absence de messages d'erreur et la fluidité de la direction.

Estimated maintenance costs

Oil change	£90 – 160
Timing chain	données insuffisantes
Complete brakes	£300 – 600
Estimated annual budget	£650 – 1 300

Indicative estimates (independent garage, UK market). Prices vary by region and year.