Is the 2021 Cadillac XT6 reliable?

The 2021 Cadillac XT6 has 23 complaints filed with NHTSA (1.0x the segment average). Our reliability verdict: average. Most common issue: DRIVER ASSIST/CAMERAS problems.

What are common problems with the 2021 Cadillac XT6?

Top problems: DRIVER ASSIST/CAMERAS (6 complaints, avg repair $500); ENGINE (4 complaints, avg repair $500); ELECTRICAL (4 complaints, avg repair $500). Issues typically appear around 50K miles.

Are there any recalls on the 2021 Cadillac XT6?

Yes, there are 2 recall(s): FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS, BACK OVER PREVENTION: SENSING SYSTEM: CAMERA. Contact any Cadillac dealer to verify if recalls have been completed on your specific vehicle.

How much does it cost to fuel a 2021 Cadillac XT6?

The 2021 Cadillac XT6 gets 22 MPG combined. At current US average gas prices, driving 12,000 miles per year costs roughly $2182. See the interactive fuel cost calculator on this page for state-specific pricing.

How much does it cost to insure a 2021 Cadillac XT6?

Estimated US average full-coverage insurance for the 2021 Cadillac XT6 is approximately $2,231/year (suv-luxury class). Actual quotes vary heavily by state, driver age, driving record, and credit — see the interactive insurance estimator on this page for state-specific pricing.

2021 Cadillac XT6

Problems, Recalls & Reliability Report

Average

Quick Summary

The 2021 Cadillac XT6 has 23 owner complaints filed with NHTSA — that's 1.0x the segment average of 23. The most common issue is driver assist/cameras problems (26% of all complaints), specifically: the contact owns a 2021 cadillac xt6.the contact stated that while reversing, the rear-view camera displayed his vehicle instead of other vehicles nearby. there were no warning lights illuminated. the contact received notification of nhtsa campaign number: 22v709000 (back over prevention) however, t. There are 2 recalls issued for this model year.

Total Complaints

Recalls Issued

5/5

Safety Stars

1.0x

vs Segment Avg

Known Problems(top 5 of 8)

DRIVER ASSIST/CAMERAS

6 complaints

26%

• The contact owns a 2021 Cadillac XT6.The contact stated that while reversing, the rear-view camera displayed his vehicle instead of other vehicles nearby. There were no warning lights illuminated. The contact received notification of NHTSA Campaign Number: 22V709000 (Back Over Prevention) however, t
• I was driving about 25mph all of the sudden the car automatic applied the brakes.
• In April 2023 I was backing out of a parking space when a message displayed on the dash that “The Parking Assist Have Been Blocked, See Owner’s Manual “. In this event there were pedestrians walking behind my vehicle and if not for my cautions always while backing could have caused an accident. This

Typical onset: 50K miles Est. repair: $500

“The contact owns a 2021 Cadillac XT6.The contact stated that while reversing, the rear-view camera displayed his vehicle instead of other vehicles nearby. There were no warning lights illuminated. The contact received notification of NHTSA Campaign Number: 22V709000 (Back Over Prevention) however, t”

— NHTSA complaint filing

Recalls (2)

FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS03/06/2021

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.

Risk: Improperly attached and seated fuel supply lines may loosen or separate, causing a fuel leak and increasing the risk of a fire.

Fix: 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.

Fuel Cost Calculator for 2021 Cadillac XT6

Live EIA prices

Annual miles driven: 12,000

Your state (affects local gasoline price)

Per year

$2,182

Per month

$182

Per mile

18.2¢

MPG

City driving (worst-case MPG)

$2,667/yr

Highway driving (best-case MPG)

$1,847/yr

Based on EPA fuel-economy ratings and EIA weekly retail prices (2026-07-20). Real-world cost varies with driving style, trim/engine, terrain, and traffic.

5-Year Gas Price History

EIA weekly retail data · 2021 → today

Show:

Current

$4.00

5-year low

$2.78

5-year high

$5.01

Since 2021

+27%

Source: US Energy Information Administration weekly retail gasoline prices.

Estimated Insurance Cost for 2021 Cadillac XT6

Estimate only, not a quote. Modeled from NAIC + HLDI averages for a hypothetical 35-year-old driver with clean record + full coverage. Your actual quote depends heavily on your age, driving history, credit, ZIP code, and insurer.

Your state (affects local premium average)

Full coverage / year

$2,231

Full coverage / month

$186

Liability only / year

$688

vs US avg

+33%

How this estimate is calculated

US base full-coverage premium$1674

× state (US)1.00x

× vehicle class (suv-luxury)1.35x

× theft risk1.00x

× safety rating0.94x

× vehicle age1.05x

= Full coverage estimate$2231

Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.

Maintenance & Warranty

Cadillac New-Vehicle Warranty Coverage

Bumper-to-bumper (basic)

4 yr / 50K mi

Powertrain

6 yr / 70K mi

Hybrid/EV battery

8 yr / 100K mi

Corrosion (rust perforation)

6 yr / 100K mi

Roadside assistance

6 yr / 70K mi

These are the terms for a new Cadillac. If you're buying a used 2021 XT6, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Cadillac dealer for VIN-specific remaining warranty.

Estimated Repair Costs

DRIVER ASSIST/CAMERAS(~50K mi)

$500

ENGINE(~50K mi)

$500

ELECTRICAL(~50K mi)

$500

OTHER(~50K mi)

$500

FUEL SYSTEM(~50K mi)

$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 23 owner complaints for this specific year, here's what to check or ask about:

☐
DRIVER ASSIST/CAMERAS: The contact owns a 2021 Cadillac XT6.The contact stated that while reversing, the rear-view camera displayed his vehicle instead of other vehicles nearby. There were no warning lights illuminated. The contact received notification of NHTSA Campaign Number: 22V709000 (Back Over Prevention) however, t
Typically appears around 50K miles. Repair cost ~$500
☐
ENGINE: The vehicle's check engine light came on late afternoon and then started with a delayed turn over, but not actually starting thr following day. The vehicle had to be towed to the dealership. The technician and service advisor commented immediately that it is likely the fuel pump control module.
Typically appears around 50K miles. Repair cost ~$500
☐
ELECTRICAL: Car started and ran at idle for 5 minutes. 10 minutes later when attempting to restart, the engine churned for several seconds then ran for about 2 seconds and cut out. "Press to Start" button remained showing green and would not respond to being pressed. The car was stationary in my garage; this
Typically appears around 50K miles. Repair cost ~$500
☐
OTHER: The Sunroof popped and shattered. I was on the highway with very light traffic - cars were at least 200 feet apart - when I heard a loud boom and then felt and saw the sunroof cover start vibrating. It was not the small smack of a rock - it was a loud pop and I wondered if my muffler had just falle
Typically appears around 50K miles. Repair cost ~$500
☐
RECALLS: Verify all 2 recalls have been completed — free at any Cadillac dealer
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)