If you're searching for a capable, full-size SUV with serious muscle and room for the whole family, this 2021 GMC Yukon SLT Sport Utility 4D for sale at Best of Michigan Auto Sales in Detroit, Michigan deserves a close look. With a powerful V8 under the hood, a smooth 10-speed automatic transmission, and 4WD capability, this Yukon is built for Michigan roads — from metro Detroit streets to unpaved northern Michigan trails.
 

About This 2021 GMC Yukon SLT

The 2021 GMC Yukon marked a landmark generation for GM's flagship SUV, bringing an all-new platform, independent rear suspension, and a dramatically improved interior. This SLT trim sits comfortably above the base SLE and below the premium Denali, offering a well-rounded package of luxury and utility without the top-tier price tag. With 128,917 miles, this Yukon has clearly served as a family workhorse — and at this mileage, a well-maintained Yukon SLT still has plenty of life left. Buyers looking for a used GMC Yukon in Detroit, in Wayne County, Michigan, will find this to be a compelling option for the price.
 

2021 GMC Yukon Performance and Engine

Under the hood sits GMC's legendary EcoTec3 5.3-liter V8, delivering 355 horsepower and 383 lb-ft of torque. Paired with a smooth-shifting 10-speed automatic transmission with overdrive, power delivery is confident and refined whether you're merging onto I-75, hauling passengers across Wayne County, or towing a trailer up north. The 4WD drivetrain adds genuine confidence in Michigan winters, where snow and ice can make front-wheel-drive vehicles a liability. The EcoTec3 also features Dynamic Fuel Management, which deactivates cylinders at highway speed to help improve fuel efficiency without sacrificing performance when you need it most.
 

GMC Yukon SLT Features and Interior

The 2021 Yukon SLT comes loaded with features that put comfort and convenience front and center. Expect a premium interior with leather-appointed seating, a large infotainment touchscreen with Apple CarPlay and Android Auto compatibility, tri-zone automatic climate control, and a power-sliding second-row seat — one of the most praised features of the redesigned 2021 model year. The third row is genuinely usable for adults, not just children, thanks to the new independent rear suspension freeing up cabin space. Additional SLT features typically include a Bose premium audio system, heated front and second-row seats, a power liftgate, rear park assist, and a suite of driver safety technology including lane keep assist, forward collision alert, and automatic emergency braking.
 

GMC Yukon Reliability and Ownership

The GMC Yukon has a long-established reputation for durability, particularly when paired with the 5.3-liter V8, which has proven itself across millions of GM trucks and SUVs over multiple decades. Owners consistently report that these engines hold up well past 150,000 miles with routine maintenance — oil changes, transmission fluid services, and spark plug replacements at appropriate intervals. The 2021 model year is particularly strong, as it introduced the new T1 platform that resolved many of the interior space and ride quality criticisms of the previous generation. Michigan drivers appreciate the Yukon's tow rating of up to 8,400 pounds and its ability to handle rough conditions without breaking a sweat. At 128,917 miles, a pre-purchase inspection from a trusted mechanic is always smart, but buyers of this model should feel encouraged by the Yukon's proven track record.
 

Why Buy From Best of Michigan Auto Sales in Detroit, Michigan

Best of Michigan Auto Sales, located in Detroit in Wayne County, Michigan, specializes in quality pre-owned vehicles that real Michigan drivers depend on. Purchasing from a local Detroit dealership means you're working with people who understand the roads, the winters, and the needs of Michigan families. There's no pressure, no runaround — just straightforward used car buying from a team that wants to earn your business and your long-term trust. Whether you're commuting through Detroit, heading to Dearborn, or making weekend runs to Ann Arbor, this Yukon is ready to handle it all.
 

Financing a Used GMC Yukon Near Detroit

Best of Michigan Auto Sales works with a variety of lenders to help buyers throughout Wayne County get behind the wheel, even if your credit history isn't perfect. Whether you're a first-time buyer, rebuilding your credit, or simply looking for the most competitive rate available, the finance team is ready to find options that work for your budget. Buyers from Dearborn, Inkster, Westland, and across southeastern Michigan regularly make the trip to Detroit to take advantage of straightforward, no-surprise financing. Call 313-499-8335 to get pre-qualified before you even step on the lot.
 

Frequently Asked Questions

Is the 2021 GMC Yukon SLT a good buy?

Yes — the 2021 Yukon SLT is widely considered one of the best years for this model. The 2021 redesign brought a completely new platform, a far more spacious interior, and updated technology, making it a significant step forward from the previous generation. The SLT trim offers most of the Yukon's best features at a price point below the Denali.
 

How many miles is too many on a used GMC Yukon?

With proper maintenance history, a GMC Yukon with the 5.3-liter V8 can reliably reach 200,000 miles or more. At 128,917 miles, this Yukon is well into its service life but not at the end of it — especially if previous oil changes and scheduled services were performed consistently. Always request service records and consider an independent inspection.
 

What does the 2021 GMC Yukon SLT trim include?

The SLT trim typically includes leather seating, heated front and second-row seats, power-adjustable seats, a Bose premium audio system, a large infotainment display with wireless Apple CarPlay and Android Auto, a power liftgate, tri-zone climate control, and a full suite of active safety features including forward collision alert, lane keep assist, and rear cross-traffic alert.
 

Is the 2021 GMC Yukon good in Michigan winters?

Absolutely. The 4WD system on this Yukon is well-suited for Michigan's winter conditions, providing added traction on snow-covered and icy roads. Combined with the V8's low-end torque and a high ground clearance, this Yukon handles winter driving with confidence that smaller SUVs simply can't match.
 

What is the towing capacity of a 2021 GMC Yukon SLT?

The 2021 GMC Yukon SLT with the 5.3-liter V8 is rated to tow up to 8,400 pounds when properly equipped, making it one of the most capable full-size SUVs in its class for hauling boats, campers, or trailers.
 

Serving Detroit and Surrounding Areas in Wayne County

Best of Michigan Auto Sales proudly serves drivers throughout Detroit and the greater Wayne County area, including customers from Dearborn, Inkster, Westland, Romulus, Taylor, Allen Park, Lincoln Park, and Downriver communities. Whether you're coming from the east side of Detroit, the suburbs of Wayne County, or making the drive from neighboring Oakland or Macomb counties, this 2021 GMC Yukon SLT near Detroit is worth the trip. Southeastern Michigan buyers looking for a trustworthy full-size 4WD SUV won't need to look much further.
 

Contact Best of Michigan Auto Sales Today

Ready to take this 2021 GMC Yukon SLT for a test drive? Contact Best of Michigan Auto Sales in Detroit, Michigan today by calling 313-499-8335. Our team is ready to answer your questions, walk you through the vehicle's history, and help you get financed quickly and easily. Come see us at our Detroit location and find out why buyers across Wayne County trust Best of Michigan Auto Sales for their next vehicle purchase.