VehicleVerdict

2021 Cadillac XT6 problems

Verdict · NHTSA data

Limited data — recalls on file

NHTSA has just 23 complaints on file for the 2021 Cadillac XT6 — too few to judge reliability from owner reports alone — but 2 recall campaigns apply to this year, so any used example should have its VIN checked for completed recall work.

In government crash testing it earned 5 of 5 NCAP stars overall.

23

NHTSA complaints

2

Recalls

1

Investigations

0

Crash-involved

0

Fires reported

0

Injuries

0

Deaths

5

NCAP overall · of 5 stars

How does 2021 compare to other XT6 years?

XT6 NHTSA complaints by model year, 2021 highlighted51 complaints2020: 51 complaints2021: 23 complaints2022: 16 complaints2023: 16 complaints2024: 24 complaints2025: 10 complaints
XT6 NHTSA complaints by model year, 2021 highlighted. Red bars are years to avoid.

See all XT6 years to avoid →

What are the most common 2021 Cadillac XT6 problems?

ComponentComplaintsShare
Driver Assistance626%
Electrical System417%
Engine417%
Other313%
Fuel System313%
Transmission14%
Steering14%
Brakes14%

Does the 2021 Cadillac XT6 have recalls?

2 NHTSA recall campaigns on file. Recall repairs are free at franchised dealers.

22V709000Driver AssistanceSeptember 22, 2022 · 95,231 units

Defect

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.

Consequence

An inoperative rearview camera can reduce the driver's rear visibility, increasing the risk of a crash.

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.

21V422000Fuel SystemJune 3, 2021 · 572 units

Defect

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.

Consequence

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

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.

Consumer complaints filed with NHTSA

Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.

“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…”

Complaint filed with NHTSA · Driver Assistance · April 2, 2023

“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…”

Complaint filed with NHTSA · Electrical System · September 28, 2024

“1)The display on dash reads upon start up, “Steering Assist Reduced”. 2)There is no Engine temperature readout displayed on cluster. 3)When the vehicle is turned off, the coolant fan stays running for a few minutes at full speed. All of these issues are correlated. Also, many XT5’s & XT6’s…”

Complaint filed with NHTSA · Engine · January 28, 2025

“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…”

Complaint filed with NHTSA · Fuel System · September 28, 2024

“front and rear vision camera abruptly stopped working. bought car used [XXX]. dealer should not have sold car without fixing recall. dealer serpentini of medina, oh claimed cadilac had recall on front brakes, and replaced pads. when in fact recall was about cable systems for cameras. what recourse…”

Complaint filed with NHTSA · Other · June 28, 2025

2021 Cadillac XT6 — common questions

Is the 2021 Cadillac XT6 reliable?

The record is thin — 23 NHTSA complaints — so owner-report data can't strongly confirm reliability either way, though 2 recalls should be verified as completed.

What are the most common 2021 XT6 problems?

According to NHTSA complaint data, the leading problem areas are driver assistance (6 complaints), engine (4 complaints), electrical system (4 complaints).

Does the 2021 Cadillac XT6 have recalls?

Yes — NHTSA lists 2 recall campaigns affecting the 2021 Cadillac XT6. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Is the 2021 Cadillac XT6 under NHTSA investigation?

NHTSA opened one investigation into this model year; all are now closed.

Which Cadillac XT6 years should you avoid?

Based on complaint rates and open investigations, the XT6 years to avoid are 2020. The cleanest record among XT6 years belongs to 2025.

How safe is the 2021 Cadillac XT6?

In NHTSA's NCAP crash testing, the 2021 Cadillac XT6 earned an overall rating of 5 out of 5 stars.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.