Reliable Auto DB

2021 Cadillac XT6 reliability

Is it reliable?

Owners have filed 18 complaints with NHTSA about the 2021 Cadillac XT6 over 6 years — 2 per year. That is the fewest complaints per year among the 5 XT6 years on this site. NHTSA has 2 recalls on file, including Camera and Hoses and fittings.

2020 Cadillac XT6
Photo by Kevauto, resized from the original. Wikimedia Commons CC BY-SA 4.0
Complaints

18

Per year

2

Recalls

2

Years on the road

6

What owners report

The complaints owners file most often name Back-over prevention (4 of 18), then Electrical system (4) and Fuel and propulsion system (4).

Next to 2020 and 2022

The 2020 XT6 has 36 complaints, 5 per year, and the 2022 has 15 complaints, 3 per year. The 2021 has fewer complaints per year than the 2020. The 2021 has fewer complaints per year than the 2022.

The complaint rate is complaints filed in this year’s first 3 years on the road, divided by however many of those years have passed. Recalls are a separate count. The numbers are for the US-market 2021 Cadillac XT6. How we count. Data as of .

Recalls (2)

Recall back-over prevention, sensing system, camera 2022-09-22 · NHTSA campaign 22V709000
Summary General Motors, LLC (GM) is recalling certain 2020-2021 Cadillac XT5, XT6, and GMC Acadia vehicles equipped with the optional Surround Vision feature. The rearview camera coaxial cable connectors may have been crimped improperly, causing the rearview camera to fail or function intermittently.
Remedy Dealers will replace the coaxial cables, free of charge. Owner notification letters were mailed January 18, 2023. Owners may contact Cadillac customer service at 1-800-458-8006 or GMC customer service at 1-800-462-8782. GM's number for this recall is N222378380.
Recall gasoline fuel system, delivery, hoses and fittings 2021-06-03 · NHTSA campaign 21V422000
Summary General Motors, LLC. (GM) is recalling certain 2021 Cadillac XT5, XT6, and GMC Acadia vehicles. The fuel supply lines may be improperly attached and seated.
Remedy Dealers will inspect and replace fuel supply lines as necessary, free of charge. Owner notification letters were mailed on July 1, 2021. Owners may contact Cadillac customer service at 1-800-458-8006 and GMC customer service at 1-800-462-8782. GM's number for this recall is N212335590.

Complaints by component (18 total)

Back-over prevention
4
Electrical system
4
Fuel and propulsion system
4
Engine
3
Forward collision avoidance
2
Engine and engine cooling
1
Powertrain
1
Service brakes
1
Steering
1
Show 1 more Show less
Crash-flagged

0

Fire-flagged

0

Injury reports

0

Death reports

0

Complaints filed per year

2202152023120245202552026
Excerpts from recent NHTSA complaint filings
  • "Your site shows no recalls. I got a recall for a repair I had to have done a few months ago. I just got the recall notice from GM, but when I called to inquire about a reimbursement, they state the recall was released…"
    Fuel and propulsion system · filed 2026-07-01
  • "The contact owns a 2021 Cadillac XT6. The contact stated that while reversing, the rear-view camera intermittently displayed a blank image. The vehicle was taken to the dealer, who was unable to duplicate the failure…"
    Back-over prevention · filed 2026-03-12
  • "Cadillac XT6 – VIN: [XXX] echanical Failures, Ignored Transmission Recall(s), and Dealer Negligence I write this letter to formally place General Motors Company on notice of a pattern of serious mechanical failures,…"
    Powertrain, Electrical system · filed 2026-02-09
  • "The contact owns a 2021 Cadillac XT6. The contact stated that while sitting inside the vehicle, the vehicle felt unbalanced. Upon inspection, the contact noticed that the H-pipe was leaning more to the right side. The…"
    Engine and engine cooling · filed 2026-01-06
  • "The vehicle was previously recalled for an intermittent backup camera failure. Prior to me purchasing the vehicle, the recall was completed and documented as repaired. I went in to the Myrtle Beach Cadillac dealership…"
    Electrical system · filed 2026-01-05

NHTSA crash ratings

Version Overall Front Side Rollover
2021 Cadillac XT6 SUV AWD 5 stars 5 stars 5 stars 4 stars
2021 Cadillac XT6 SUV FWD 5 stars 5 stars 5 stars 4 stars

Stars are how this vehicle did in NHTSA crash tests. They are a safety result, separate from the complaint record. Not rated means that test was not run for this version.

Fuel economy

Trim Engine Transmission Drive City Hwy Combined Annual fuel cost
XT6 all-wheel drive 3.6L, 6-cyl Automatic (9-speed) All-wheel drive 18 25 21 MPG $3100
XT6 all-wheel drive 2L, 4-cyl Automatic (9-speed) All-wheel drive 21 26 23 MPG $3450
XT6 front-wheel drive 3.6L, 6-cyl Automatic (9-speed) Front-wheel drive 19 26 21 MPG $3100
XT6 front-wheel drive 2L, 4-cyl Automatic (9-speed) Front-wheel drive 21 27 23 MPG $3450

Specs and fitment

First generation, 2020–present
Body styles SUV
Oil 0W-30 (3.6L V6; temperature-dependent specification) , 6 qt capacity
Tire size 235/65R18

Known issues for this generation

Recall 20V-639 covers certain 2020 Buick Enclave, Cadillac XT5, Cadillac XT6, Chevrolet Traverse, and GMC Acadia vehicles: the fuel pump jet nozzle may have a plastic burr that can cause fuel pump failure. Dealers replace the fuel pump module.

Compare

Previous year 2020 Cadillac XT6 Next year 2022 Cadillac XT6 See every Cadillac XT6 model year →

Frequently asked questions

Is the 2021 Cadillac XT6 reliable?

Owners have filed 18 complaints with NHTSA about the 2021 Cadillac XT6 over 6 years — 2 per year. That is the fewest complaints per year among the 5 XT6 years on this site. NHTSA has 2 recalls on file, including Camera and Hoses and fittings.

What are common problems with a 2021 Cadillac XT6?

The complaints owners file most often name Back-over prevention (4 of 18), then Electrical system (4) and Fuel and propulsion system (4).

Is the 2021 Cadillac XT6 more reliable than the years next to it?

The 2020 XT6 has 36 complaints, 5 per year, and the 2022 has 15 complaints, 3 per year. The 2021 has fewer complaints per year than the 2020. The 2021 has fewer complaints per year than the 2022.

Has the 2021 Cadillac XT6 been recalled?

The 2021 Cadillac XT6 has 2 recalls on file with NHTSA. See the recalls table on this page for dates, components, and remedies.

How many complaints have owners filed about the 2021 Cadillac XT6?

Owners have filed 18 complaints about the 2021 Cadillac XT6 with NHTSA.

What mpg does a 2021 Cadillac XT6 get?

EPA-rated combined fuel economy for the 2021 Cadillac XT6 is 22 MPG. See the fuel economy table on this page for city and highway figures by engine and transmission.

What oil does a Cadillac XT6 take?

The 3.6L V6 is commonly specified with 0W-30 (temperature-dependent) and about 6 qt with filter.

What tire size is on the Cadillac XT6?

Typical OE fitment is 235/65R18; confirm on the SUV’s tire placard.

Did Cadillac recall XT6 fuel pumps?

Recall 20V-639 covers certain 2020 XT6 vehicles (with Enclave, XT5, Traverse, and Acadia) where a plastic burr on the fuel pump jet nozzle can cause pump failure; dealers replace the module.