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2021 GMC

Yukon 2WD

Auto 10-spd, 8 cyl, 5.3 L, SIDI; Stop-Start

GMC Yukon: best and worst years
2021 GMC Yukon 2WD
2021 photoMr.choppersCC BY-SA 3.0Wikimedia Commons

Overview

Body
Standard Sport Utility Vehicle 2WDEPA, from EPA, last updated 6/11/2026
Drivetrain
Rear-Wheel DriveEPA, from EPA, last updated 6/11/2026
Transmission
Automatic 10-spdEPA, from EPA, last updated 6/11/2026
Powertrain
GasEPA, from EPA, last updated 6/11/2026
Fuel
RegularEPA, from EPA, last updated 6/11/2026

Engine & performance

Cyl
8EPA, from EPA, last updated 6/11/2026
Aspiration
Naturally aspiratedEPA, from EPA, last updated 6/11/2026
Start-stop system
YesEPA, from EPA, last updated 6/11/2026

Efficiency

MPG Hwy
20 mpgEPA, from EPA, last updated 6/11/2026
MPG City
16 mpgEPA, from EPA, last updated 6/11/2026
MPG Comb
18 mpgEPA, from EPA, last updated 6/11/2026
Fuel $/yr
$3,450EPA, from EPA, last updated 6/11/2026
CO₂
492 g/miEPA, from EPA, last updated 6/11/2026
Eco Score
3/10EPA, from EPA, last updated 6/11/2026
Smog score
5/10
Elec. Range
0 miEPA, from EPA, last updated 6/11/2026
SmartWay certified
No

Dimensions & capacity

Length
210 inNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026
Width
81 inNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026
Height
76 inNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026
Wheelbase
121 inNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026
Curb Weight
5,564 lbNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026

Safety NHTSA, model year

Overall crash rating
★★★★
Rollover rating
★★★★★
Stability control (ESC)
Standard
Forward-collision warning
Standard
Lane-departure warning
Optional
Recalls
13
Owner complaints
280
Reported injuries
9

Feature availability

Which features come standard, cost extra, or are locked to a pricier trim arrives with the next data phase. Standard equipment shows here today.

Standard

Reported problems NHTSA owner complaints, model year

  • ENGINE37%
  • POWER TRAIN11%
  • FUEL/PROPULSION SYSTEM10%
  • ENGINE AND ENGINE COOLING7%
  • ELECTRICAL SYSTEM6%
  • UNKNOWN OR OTHER5%

Source: NHTSA owner complaints, 399 total.

GMC Yukon: best and worst years

Federal investigations NHTSA defect investigations, model year

  • RQ26001Openopened Jan 16, 2026ENGINE

    Loss of motive power due to engine failure post recall remedy

  • EA25007Openopened Oct 23, 2025ENGINE

    Loss of motive power due to engine failure

  • PE25001opened Jan 16, 2025ENGINE

    Loss of motive power due to engine failure

  • PE21010opened Apr 9, 2021AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT

    Air Bag Malfunction

Warranty manufacturer terms, by make

Basic
3 yr / 36k mi
Powertrain
5 yr / 60k mi
Roadside assistance
5 yr / 60k mi
Maintenance
1 yr / 12k mi
EV battery
8 yr / 100k mi

Information is gathered on a best-effort basis from public sources, may be incomplete or out of date, and is not purchasing or financial advice. Verify with the manufacturer or dealer before buying.