2021 GMC Yukon: recalls, complaints and the safety record

Two federal datasets describe this model year and they answer different questions. Recall campaigns are manufacturer-acknowledged defects the maker must remedy at no charge — the 2021 GMC Yukon has 13. Complaints are unverified reports filed by owners, and NHTSA holds 302 of them here. Neither is a verdict on the car in a seller's driveway, but together they map where this generation needs attention.

Within those complaints, 9 reports describing a crash, 9 reporting an injury. Those flags come from what the owner described when filing, not from a NHTSA investigation, and a single incident can generate several reports — but they are the entries worth reading in full before buying.

NHTSA also lists 5 open or closed investigations touching this model year. Investigations sometimes end in a recall and sometimes in nothing at all; they are an early signal rather than a finding.

None of these repairs costs an owner anything, and none of them times out. What varies is whether a specific car falls inside the affected build range and whether a previous owner ever booked the work, which is what a VIN lookup settles.

NHTSA files every complaint under the component the owner blamed. For the 2021 GMC Yukon the 12 biggest categories carry most of the 302 reports, and that shape matters more than the total — evenly spread complaints read very differently from a third of owners describing one identical failure.

That concentration is the headline for this model year: engine draws 53% of everything filed, which is the pattern of a specific weakness rather than ordinary wear reporting. Whatever the shape, complaints are what owners believed happened; the inspection list further down is how you test that against the actual car.

Complaint filings for the 2021 GMC Yukon peaked in 2025. Two different stories produce complaint peaks. One is a design or assembly fault that shows up almost immediately and gets absorbed by warranty repairs and recalls. The other is a component reaching the end of its service life, which arrives with mileage and lands on whoever owns the car at the time.

A 2021 Yukon is still young enough that most of its reported problems arrived under warranty, which means the repair history matters as much as the complaint list.

Every complaint below carries the date the owner says the failure happened, and the gap between that date and the 2021model year is the age of the car when it broke. Read down the right-hand column: the systems that fail early were mostly somebody else’s warranty problem, and the ones that fail late are the bill waiting for whoever owns the car next.

On this car air bags showed up early enough that most reports fell inside the original warranty, so a well-kept example may already have had that work done — ask for the paperwork rather than assuming the problem is ahead of you. Engine and engine cooling is the latest-arriving of the group at a median of 4.4 years, which is the one to budget for on a car of this age.

NHTSA's New Car Assessment Program crash-tested this model year. The ratings describe how a tested configuration performed against standardized tests — a five-star car that has been through a collision and a bad repair is no longer the car that earned the stars.

NHTSA rated 2 configurations of this model year separately, and they do not always score alike — drivetrain and body style change how a vehicle behaves in the rollover and side tests especially. Check which one you are actually looking at.

The tested configuration above was the 2021 GMC Yukon SUV 4WD. Driver-assistance equipment on this model year: forward collision warning came standard, and lane departure warning was an option worth confirming on the specific car.

Use the complaint pattern as a targeting tool. A SUV of this age needs the usual scrutiny regardless, but these specific items earned their place by recurring in the 2021 GMC Yukon's federal file — check them first, and price whatever turns up.

• Engine — 161 owners filed about this; have a mechanic look here first
• Power train — 48 owners filed about this; have a mechanic look here first
• Fuel / propulsion system — 40 owners filed about this; have a mechanic look here first
• Recall completion — confirm by VIN that all 13 campaigns were actually repaired, not just mailed about
• Service history — a documented maintenance trail is worth more than the complaint count above
• Fluid leaks and cold-start behavior under a long test drive

Nothing in the federal record covers ordinary SUV wear, so add these. They are the checks a mechanic makes on any SUV before worrying about what makes this one a 2021 GMC Yukon.

• All-wheel-drive engagement — transfer cases and couplings fail expensively and hide well on a short test drive
• Rear tailgate seals and the spare well — water pools here first and rots outward unnoticed
• Third-row and folding-seat mechanisms if fitted, plus the floor beneath them for damp
• Roof-rail and crossbar mounts — loads carried up high stress mounts that leak once disturbed

Each of these turns something on this page into a question the seller either answers confidently or does not.

• Were the 13 campaigns completed, and is there dealer paperwork for them?
• Has the engine ever been repaired or replaced?
• Who has serviced it, and can I see the records?
• Has it been in a collision, and did insurance pay for the repair?
• Can I take it to my own mechanic before we agree a price?
• Is the title in your name and free of any lien?

Everything above describes the model year. The car in front of you has its own history: which of these 13 campaigns apply to its VIN range, whether those repairs were done, what its title record says, and what it was built with. That is a VIN question, and the decode is free.

A single vehicle’s recall count means little in isolation — what matters is how it compares with what else was on the lot. These are the closest matches on this site by body type and model year:

• 2021 BMW X3 — 11 recalls, 104 complaints
• 2021 Kia Telluride — 5 recalls, 349 complaints
• 2021 Volkswagen Atlas — 17 recalls, 455 complaints
• 2020 Hyundai Palisade — 5 recalls, 524 complaints