Mile ratingKnown issues to check on the 2020 GMC Yukon
One widely reported problem pattern applies to this model year. That does not mean this car has the fault — many were fixed under warranty or recall — but it is what to check, and what to ask the seller for, before you buy.
- 5.3L V8 (Active Fuel Management)Expensive if it bites
The Gen V 5.3 V8 with cylinder deactivation is widely reported for collapsed AFM lifters, wiped camshaft lobes and heavy oil consumption, usually announced by a persistent tick.
What to check: Start it stone cold and listen for a tick or misfire. Ask for oil consumption history and whether lifters or the camshaft have been replaced; an AFM delete or a documented lifter job is a plus, not a red flag.
Patterns are drawn from NHTSA recalls and complaints, manufacturer service bulletins and consistent owner reporting. Always confirm open recalls against the VIN and get an independent pre-purchase inspection.
What owners of the 2020 Yukon say
Owner reviews for this exact model year are the fastest way to find out what breaks, what it costs to fix and whether the car lives up to the spec sheet.
Partner links — Caboose may earn a commission if you buy through them, at no cost to you. It never affects which cars we list.
About this car
The GMC Yukon is No. 42 on the Caboose longevity table: 7.7% of them reach 250,000 miles, against 5.4% of all vehicles. This 2020 GMC Yukon SLT RWD is listed at $18,988, about $287 below the CarGurus expected market price of $19,275. It has 117,949 miles and comes in Onyx Black. Power comes from a 355 hp 5.3L V8 with 4x2. It is offered by Bomnin Chevrolet Dadeland in Miami, FL (franchise dealer).
Why it's a good buy
- 7.7% of GMC Yukons reach 250,000 miles — No. 42 of 52 on the Caboose table
- 82,051 miles of runway before 200,000
- Leather Seats
- Sunroof/Moonroof
- Navigation System
- DVD Entertainment System
Features
Caboose PRO
The full 785-word analysis of this car
The verdict
The 2020 GMC Yukon SLT RWD is listed at $18,988 with 117,949 miles. The Caboose score is 6.0 out of 10, built from three things: how far below market the price sits, how much of the 200,000-mile target is still ahead of the odometer, and how often this model reaches 250,000 miles in the iSeeCars study (7.7% of GMC Yukons do).
The asking price is within a few hundred dollars of the CarGurus expected price of $19,275, so the discount is thin and the deal rests on the car itself. That puts it in the middle of the pack, so treat it as a candidate to compare rather than a car to rush.
- Price against the market
- Mileage runway to 200,000
- Odds of reaching 250,000 miles
- Ownership budget (planning estimates)
- What to inspect on this exact car
- Questions for Bomnin Chevrolet Dadeland
- Your next seven days
Get it road-ready
The usual first-week purchases for a 2020 GMC Yukon, from partners we trust.
Partner links — Caboose may earn a commission if you buy through them, at no cost to you. It never affects which cars we list.
Similar great deals
Mile rating
Mile rating
Mile rating
Mile rating
Mile rating