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GMC · Full-Size SUV · 2021–2025

GMC Yukon T1XX

Weaknesses, engine ratings and buying advice

★★★★★
2.0 / 5.0 · Based on 2 engine variants

Generations

Engine Overview

The GMC Yukon T1XX is available with 2 engine variants — from 360 to 426 hp.

Yukon · Petrol· 355 PS
2021 2025
Stay Away! 3 weaknesses
Show all weaknesses →
Yukon Denali · Petrol· 420 PS
2021 2025
Be Careful 4 weaknesses
Show all weaknesses →

The GMC Yukon (Petrol, 355 PS) has the L84 (5.3L V8 EcoTec3) — rated: "Stay Away!", 3 known weaknesses.

The GMC Yukon Denali (Petrol, 420 PS) has the L87 (6.2L V8 EcoTec3) — rated: "Be Careful", 4 known weaknesses.

Vehicle Weaknesses

WeaknessCost
!10L80 10-Speed Transmission Shudder

Same 10-speed shudder as Tahoe/Sierra T1XX. Multiple class actions. Fluid flush with Mobil 1 LV ATF HP helps temporarily.

Symptoms: Harsh shifts, shudder at low speed, hesitation, clunking into reverse
from 40,000 km
Ad 24291289 ACDelco 10L80 filter YukonMobil 1 LV ATF HP 10L80
 High

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Known Problems and Issues

A total of 11 weaknesses have been documented for the GMC Yukon T1XX (2021–2025) — 7 engine-related and 4 vehicle-related. One problem engine: L84 (5.3L V8 EcoTec3). Typical issues affect Gearbox, Electronics, Body, Other.

Yukon (L84, 2021–2025) — Stay Away!: AFM/DFM Lifter Failure — Class Action, Oil Consumption — Piston Rings (Class Action), Timing Chain Wear. Power: 355 PS.

Yukon (L87, 2021–2025) — Be Careful: Recall: Metal Shavings in Engine — 597,000 Vehicles, AFM/DFM Lifter Failure, Oil Consumption — Piston Rings (2019-2020 and older L87). Power: 420 PS.

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

Frequently Asked Questions

What problems and weaknesses does the GMC Yukon T1XX have? +
The GMC Yukon T1XX has 7 known engine weaknesses and 4 vehicle weaknesses.
What should I look for when buying a used GMC Yukon T1XX? +
faq.watch_a_avoid
Which engine is recommended? +
Be careful: L87 (6.2L V8 EcoTec3). No engine is rated 'Good Choice'. The most fun to drive is the L87 (6.2L V8 EcoTec3). Problem engine: L84 (5.3L V8 EcoTec3) — stay away!
Which GMC Yukon T1XX engine is the most fun? +
The {code} ({displacement}) offers the most driving fun in the GMC Yukon T1XX — rated: "Fun to Drive!". {description} IRS suspension, 420 hp, 15-inch HUD, massaging seats — peak GM luxury SUV. The L87 metal shavings recall (2021-2024) applies. NHTSA investigating post-recall failures. A confirmed post-recall unit is arguably the best full-size SUV value in America. Without that confirmation, it's a $75k gamble.
Is the GMC Yukon T1XX worth buying used? +
Caution is advised with the GMC Yukon T1XX — 1 of 2 engine variants are rated 'Stay Away!'. The engine choice is crucial.
What horsepower variants are available for the GMC Yukon T1XX? +
The GMC Yukon T1XX is available with engine variants from 360 to 426 hp. Petrol: L84 (5.3L V8 EcoTec3), L87 (6.2L V8 EcoTec3).

Last updated: February 2026 · All information without guarantee