Mile ratingNo known defect pattern for this model year
The 2023 GMC Sierra 3500HD is not on our list of model years with a widely reported mechanical or electrical problem. That is a point in its favour, not a clean bill of health — this car's own history still matters, so check the VIN report and get it inspected.
What owners of the 2023 Sierra 3500HD 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.
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About this car
The GMC Sierra 3500HD is No. 7 on the Caboose longevity table: 26.2% of them reach 250,000 miles, against 5.4% of all vehicles. This 2023 GMC Sierra 3500HD AT4 Crew Cab 4WD is listed at $56,202, about $3,307 below the CarGurus expected market price of $59,509. It has 44,762 miles and comes in Summit White. Power comes from a 6.6L V8 Biodiesel with four-wheel drive. It is offered by McKinney Buick GMC in Mckinney, TX (franchise dealer).
Why it's a good buy
- 26.2% of GMC Sierra 3500HDs reach 250,000 miles — No. 7 of 52 on the Caboose table
- 155,238 miles of runway before 200,000
- 6% below market price ($3,307 savings)
- No widely reported defect pattern for this model year
- Leather Seats
- Sunroof/Moonroof
Features
Caboose PRO
The full 768-word analysis of this car
The verdict
The 2023 GMC Sierra 3500HD AT4 Crew Cab 4WD is listed at $56,202 with 44,762 miles. The Caboose score is 8.7 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 (26.2% of GMC Sierra 3500HDs do).
The asking price is $3,307 (5.6%) under the CarGurus expected price of $59,509, which is a real discount rather than a rounding gap. That puts it in the top group of cars on this site, so it is worth a same-week inspection before someone else books one.
- 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 McKinney Buick GMC
- Your next seven days
Get it road-ready
The usual first-week purchases for a 2023 GMC Sierra 3500HD, from partners we trust.
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