The 2018 GMC Yukon XL is a formidable full-size, body-on-frame SUV, part of GM's fourth generation (2015-2020) K2XX platform. Available trims include SLE, SLT, and the luxurious Denali, with new pricing ranging from approximately $50,000 to over $80,000. It stands out for its immense interior space, robust towing capabilities, and premium appointments, making it exceptionally popular among large families and those needing serious hauling power.
The Good
Its powerful V8 engines offer confident performance and strong towing capacity, appealing to the practical need for utility. The cavernous, quiet, and comfortable cabin provides a luxurious, safe feeling for emotional buyers. With a commanding design and proven reliability, it offers excellent value, combining upscale features with immense cargo and passenger space for any adventure.
The Bad
Known weaknesses include its sheer size, which can make parking and maneuvering challenging. Fuel economy, while decent for its class, is inherently poor due to its weight and engine. Some owners report issues with the Active Fuel Management system and potential transmission quirks. Interior materials on lower trims might not feel as premium as its price suggests.
2018 GMC Yukon XL: Quick Overview
- Engine Options: The 2018 GMC Yukon XL offers two robust V8 engine choices. The standard engine is a 5.3-liter EcoTec3 V8, while the Denali trim exclusively features a more powerful 6.2-liter EcoTec3 V8.
- Horsepower: The 5.3L V8 produces 355 horsepower and 383 lb-ft of torque, paired with a six-speed automatic transmission. The 6.2L V8 in the Denali delivers a robust 420 horsepower and 460 lb-ft of torque, coupled with a 10-speed automatic transmission.
- Fuel Economy: For the 5.3L V8, RWD models achieve an EPA-estimated 16 MPG city/23 MPG highway/19 MPG combined, while 4WD models get 16/22/18 MPG. The more powerful 6.2L V8 (Denali) with RWD offers 14/23/17 MPG, and 4WD offers 14/21/16 MPG.
- 0-60 Times: The 5.3L V8 models typically achieve 0-60 mph in the low 7-second range, while the more potent 6.2L V8 Denali can sprint from 0-60 mph in approximately 6.0-6.2 seconds, impressive for a vehicle of its size.
- Towing Capacity: With the 5.3L V8 and proper equipment, the Yukon XL can tow up to 8,300 pounds (RWD) or 8,100 pounds (4WD). The 6.2L V8 Denali has a maximum towing capacity of 8,100 pounds (RWD) or 7,900 pounds (4WD).
- Trim-Level Features:
- SLE: Entry-level, but well-equipped with 18-inch wheels, active aero shutters, tri-zone automatic climate control, an 8-inch IntelliLink touchscreen with Apple CarPlay and Android Auto, a rearview camera, remote start, and a 9-speaker Bose audio system.
- SLT: Adds significant luxury and convenience, including leather upholstery, heated and ventilated front seats, heated second-row seats, a power liftgate, power-folding third-row seats, power-adjustable pedals, and advanced safety features like forward collision alert, lane keep assist, blind-spot monitoring, and rear cross-traffic alert.
- Denali: The top-tier trim, boasting unique exterior styling, the powerful 6.2L V8 engine and 10-speed automatic, Magnetic Ride Control adaptive suspension, 20-inch polished aluminum wheels, a head-up display, navigation, an enhanced Bose Centerpoint surround-sound system, wireless phone charging, and perforated leather-appointed seating. Optional features include a power sunroof and a rear-seat entertainment system across all trims.
2018 GMC Yukon XL Specifications
Vehicle Information
| Year | 2018 |
| Make | GMC |
| Model | Yukon XL |
| Trim | - |
| Style | - |
| Type | Wagon |
| Category | Minivan Medium Truck |
Manufacturing Details
| Made In | United States |
| Manufacturing City | ARLINGTON |
Dimensions
| Doors | 4-Door |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | 8 |
Engine & Performance
| Engine | L83 - Spark Ignited Direct Injection, Variable Valve Timing, AFM, E85 MAX, Aluminum |
| Engine Size | 2.4L |
| Engine Cylinders | 4 |
| Transmission | 6 Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 6-Speed |
| Drivetrain | Four-Wheel Drive |
Additional Features
| Anti-Brake System | Standard |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | - |
| Invoice Price | - |
| Delivery Charges | - |
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What Problems Does the 2018 GMC Yukon XL Have?
The 2018 GMC Yukon XL, while generally robust, does have some frequently reported problems and long-term reliability concerns, primarily related to its sophisticated engine and transmission systems. A significant concern revolves around the Active Fuel Management (AFM) system, which can sometimes lead to excessive oil consumption, lifter failures, and ultimately, costly engine repairs. Owners have reported these issues across various model years using the AFM system, including the 2018 models equipped with the 5.3L V8.
Transmission issues, particularly with the 8-speed automatic (found in some 5.3L models) and the newer 10-speed automatic (exclusive to the 6.2L Denali), can include rough or hesitant shifting, particularly at lower speeds or during downshifts. While the 10-speed was an improvement, early versions sometimes experienced software-related quirks. Another common complaint involves premature wear of brake components, such as rotors and pads, leading to shuddering.
Minor electrical gremlins, such as issues with the infotainment system (freezing, connectivity problems) or HVAC blower motors/actuators, have also been reported. While not as critical, these can be annoying.
Regarding recalls for the 2018 model year, it's crucial to check the NHTSA database using the specific VIN, as recalls can be quite targeted. However, common recalls for this generation included potential issues with the vacuum pump that could reduce power brake assist (affecting some 2015-2018 models), software-related power steering assist reduction (mostly 2015-2017 but worth checking), and various seat belt or airbag concerns. Long-term, the AFM system remains the primary reliability concern, potentially impacting engines past 100,000 miles if not properly maintained or if an underlying defect exists. Magnetic Ride Control shocks on Denali models can also be an expensive replacement item as they age.
Transmission issues, particularly with the 8-speed automatic (found in some 5.3L models) and the newer 10-speed automatic (exclusive to the 6.2L Denali), can include rough or hesitant shifting, particularly at lower speeds or during downshifts. While the 10-speed was an improvement, early versions sometimes experienced software-related quirks. Another common complaint involves premature wear of brake components, such as rotors and pads, leading to shuddering.
Minor electrical gremlins, such as issues with the infotainment system (freezing, connectivity problems) or HVAC blower motors/actuators, have also been reported. While not as critical, these can be annoying.
Regarding recalls for the 2018 model year, it's crucial to check the NHTSA database using the specific VIN, as recalls can be quite targeted. However, common recalls for this generation included potential issues with the vacuum pump that could reduce power brake assist (affecting some 2015-2018 models), software-related power steering assist reduction (mostly 2015-2017 but worth checking), and various seat belt or airbag concerns. Long-term, the AFM system remains the primary reliability concern, potentially impacting engines past 100,000 miles if not properly maintained or if an underlying defect exists. Magnetic Ride Control shocks on Denali models can also be an expensive replacement item as they age.
How long will the 2018 GMC Yukon XL last?
With diligent maintenance, a 2018 GMC Yukon XL can reliably achieve 200,000 miles or more, with many owners reporting successful service beyond 250,000 miles. The body-on-frame construction and robust V8 engines provide a strong foundation for long-term durability. However, consistent oil changes are paramount, especially to mitigate potential issues with the Active Fuel Management (AFM) system, which is a known long-term weakness that can lead to lifter failure and excessive oil consumption. Over time, suspension components, particularly the Magnetic Ride Control shocks on Denali trims, may require costly replacement. Electrical issues, such as faulty sensors or infotainment glitches, can also surface with age. Rust can become a concern in regions with heavy salt use on roads if undercarriage protection isn't maintained.
What Technology & Safety Features are Included?
The 2018 GMC Yukon XL offers a comprehensive suite of technology, entertainment, driver-assistance, and safety features. Standard across all trims is an 8-inch IntelliLink touchscreen infotainment system, providing access to Apple CarPlay and Android Auto for seamless smartphone integration. A 9-speaker Bose audio system comes standard on lower trims, upgraded to a premium Bose Centerpoint surround-sound system on the Denali. Other tech conveniences include a 4G LTE Wi-Fi hotspot, multiple USB ports, and a 110-volt power outlet. Higher trims and optional packages offer wireless charging and an integrated navigation system. For entertainment, an optional rear-seat entertainment system with a Blu-ray/DVD player keeps passengers engaged on long journeys.
In terms of driver-assistance, a rearview camera is standard. Moving up to SLT and Denali trims, or via optional packages, introduces a Safety Alert Seat (which vibrates to warn the driver), forward collision alert, lane keep assist, blind-spot monitoring, and rear cross-traffic alert. Low-speed forward automatic braking is also available to help prevent frontal collisions. Adaptive cruise control, which automatically adjusts speed to maintain a set distance from the vehicle ahead, is an optional feature, often found on the Denali trim.
Standard safety features include a comprehensive array of airbags (front, side-impact, head curtain), StabiliTrak electronic stability control with traction control, and a robust body structure designed for impact protection. GM's Teen Driver mode allows parents to set limits on speed and audio volume, and provides a "report card" of driving habits. Crash-test ratings for the 2018 GMC Yukon XL are generally strong. The National Highway Traffic Safety Administration (NHTSA) gave it an overall 4-star safety rating, with 5 stars for side impact and 3 stars for rollover resistance. The Insurance Institute for Highway Safety (IIHS) did not fully test the 2018 Yukon XL, but similar GM models typically perform well in tests they conduct.
In terms of driver-assistance, a rearview camera is standard. Moving up to SLT and Denali trims, or via optional packages, introduces a Safety Alert Seat (which vibrates to warn the driver), forward collision alert, lane keep assist, blind-spot monitoring, and rear cross-traffic alert. Low-speed forward automatic braking is also available to help prevent frontal collisions. Adaptive cruise control, which automatically adjusts speed to maintain a set distance from the vehicle ahead, is an optional feature, often found on the Denali trim.
Standard safety features include a comprehensive array of airbags (front, side-impact, head curtain), StabiliTrak electronic stability control with traction control, and a robust body structure designed for impact protection. GM's Teen Driver mode allows parents to set limits on speed and audio volume, and provides a "report card" of driving habits. Crash-test ratings for the 2018 GMC Yukon XL are generally strong. The National Highway Traffic Safety Administration (NHTSA) gave it an overall 4-star safety rating, with 5 stars for side impact and 3 stars for rollover resistance. The Insurance Institute for Highway Safety (IIHS) did not fully test the 2018 Yukon XL, but similar GM models typically perform well in tests they conduct.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
In the meantime, feel free to explore the other sections for more content.
2018 GMC Yukon XL Prices and Market Value
When new in 2018, the GMC Yukon XL had a starting MSRP of around $50,000 for the SLE trim, climbing to over $80,000 for a fully-optioned Denali. As of early 2024, current used market prices vary significantly based on mileage, condition, and trim. An SLE might range from $25,000 to $35,000, an SLT from $30,000 to $40,000, and a Denali from $38,000 to $50,000+. The Yukon XL generally exhibits good depreciation performance for its class, often holding value better than many sedans due to its enduring utility and popularity. Factors affecting its resale value include low mileage, a clean maintenance history, the presence of desirable options (like a rear-seat entertainment system or 4WD), overall cosmetic condition, and the highly sought-after Denali trim. Conversely, high mileage, prior accidents, or known issues like Active Fuel Management problems can significantly depress resale value.
2018 GMC Yukon XL Cost of Ownership
Owning a 2018 GMC Yukon XL is generally a costly endeavor. Insurance premiums are typically higher due to its large size, replacement cost, and greater potential for damage in collisions. Fuel costs will be substantial; its powerful V8 engines and heavy weight result in relatively low MPG, leading to frequent and expensive fill-ups. Routine maintenance is moderate, but parts can be pricier due to its SUV classification. Repairs, especially for significant issues like the Active Fuel Management system or transmission problems, can be very expensive. Long-term ownership costs reflect a vehicle that is not economical. Budgeting for high fuel consumption, potentially costly repairs, and above-average insurance is crucial.
2018 GMC Yukon XL Fuel Efficiency
Fuel Type
Gasoline
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City Mileage
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Highway Mileage
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2018 GMC Yukon XL Safety Rating
NHTSA
2018 GMC Yukon XL Insurance
Insurance for a 2018 GMC Yukon XL is moderately priced, reflecting its status as a Wagon with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2018 GMC Yukon XL Compare to Other Wagon?
The 2018 GMC Yukon XL faces stiff competition in the full-size SUV segment. Its primary rivals include the Chevrolet Suburban/Tahoe, Ford Expedition MAX, Toyota Sequoia, and Nissan Armada, along with its luxury sibling, the Cadillac Escalade ESV.
In terms of performance, the Yukon XL's V8 engines offer strong, traditional power and impressive towing. The 6.2L Denali is particularly potent. The Ford Expedition MAX, however, with its twin-turbo V6, often delivers better fuel economy and competitive towing, with instant torque. The Toyota Sequoia offers a robust V8 but feels less refined. The Nissan Armada also has a strong V8 but with an older transmission.
Features are a strong suit for the Yukon XL, especially the Denali trim, which offers luxury amenities, advanced tech, and Magnetic Ride Control for a superior ride. The Suburban, being mechanically identical, offers similar features at a slightly lower price point. The Expedition MAX can boast a more modern interior design and tech interface, particularly in its higher trims. The Sequoia's interior tech and design are notably dated. The Escalade ESV provides an elevated luxury experience beyond the Yukon XL.
Reliability is generally good for the Yukon XL's platform, though the Active Fuel Management system in the V8s remains a notable long-term concern. The Toyota Sequoia is renowned for its legendary, almost bulletproof reliability, though it sacrifices refinement for it. Ford's EcoBoost V6 in the Expedition MAX has proven generally reliable, but some early versions had issues. The Armada offers decent reliability.
Price-wise, the Yukon XL typically slots between the Chevrolet Suburban and the Cadillac Escalade ESV. New, it was more expensive than the Suburban but offered a more upscale interior. On the used market, this hierarchy largely holds true.
Alternatives:
In terms of performance, the Yukon XL's V8 engines offer strong, traditional power and impressive towing. The 6.2L Denali is particularly potent. The Ford Expedition MAX, however, with its twin-turbo V6, often delivers better fuel economy and competitive towing, with instant torque. The Toyota Sequoia offers a robust V8 but feels less refined. The Nissan Armada also has a strong V8 but with an older transmission.
Features are a strong suit for the Yukon XL, especially the Denali trim, which offers luxury amenities, advanced tech, and Magnetic Ride Control for a superior ride. The Suburban, being mechanically identical, offers similar features at a slightly lower price point. The Expedition MAX can boast a more modern interior design and tech interface, particularly in its higher trims. The Sequoia's interior tech and design are notably dated. The Escalade ESV provides an elevated luxury experience beyond the Yukon XL.
Reliability is generally good for the Yukon XL's platform, though the Active Fuel Management system in the V8s remains a notable long-term concern. The Toyota Sequoia is renowned for its legendary, almost bulletproof reliability, though it sacrifices refinement for it. Ford's EcoBoost V6 in the Expedition MAX has proven generally reliable, but some early versions had issues. The Armada offers decent reliability.
Price-wise, the Yukon XL typically slots between the Chevrolet Suburban and the Cadillac Escalade ESV. New, it was more expensive than the Suburban but offered a more upscale interior. On the used market, this hierarchy largely holds true.
Alternatives:
- For a better balance of modern tech, fuel economy, and strong towing, the Ford Expedition MAX is a compelling alternative.
- If uncompromising long-term reliability is the absolute priority over refinement and cutting-edge tech, the Toyota Sequoia is worth considering.
- For ultimate luxury and a more premium experience, the Cadillac Escalade ESV is the next step up.
- If you value mechanical commonality and utility but want to save some money, the Chevrolet Suburban is an excellent, nearly identical choice.
Final Verdict: Is the 2018 GMC Yukon XL a Good Wagon?
The 2018 GMC Yukon XL is ideal for large families, those requiring substantial cargo and passenger capacity, or individuals who regularly tow boats, RVs, or heavy trailers. Its commanding road presence, comfortable ride, and upscale features (especially the Denali trim) also appeal to buyers seeking a premium experience in a utilitarian package. It is worth buying, particularly on the used market, for its sheer versatility and robust build.
However, prospective buyers should proceed with awareness. Opting for a used model offers significant value depreciation savings. A pre-purchase inspection is highly recommended to identify potential issues, particularly concerning the Active Fuel Management system in the V8 engines and transmission health. The SLT trim often represents the best balance of features, luxury, and value. Buyers must be prepared for the substantial ongoing costs associated with fuel, insurance, and potential repairs. If these costs align with your budget and a well-maintained example is found, the Yukon XL can be an incredibly capable and satisfying long-term family hauler.
However, prospective buyers should proceed with awareness. Opting for a used model offers significant value depreciation savings. A pre-purchase inspection is highly recommended to identify potential issues, particularly concerning the Active Fuel Management system in the V8 engines and transmission health. The SLT trim often represents the best balance of features, luxury, and value. Buyers must be prepared for the substantial ongoing costs associated with fuel, insurance, and potential repairs. If these costs align with your budget and a well-maintained example is found, the Yukon XL can be an incredibly capable and satisfying long-term family hauler.
Cathleen V
Cathleen is an exceptional freelance writer covering hot topics in the automotive world from a gearhead's perspective. Her articles delve into various aspects of automotive technology and history, offering readers detailed insights into engine performance, reliability, and maintenance. Through her engaging and informative writing, Cathleen provides valuable information to automotive enthusiasts and consumers alike, helping them make informed decisions about vehicle maintenance and purchases.