2021 Cadillac XT4

Showing the 2021 XT4 Premium Luxury. NHTSA's VIN data shows it with a 2.0 L engine, but that may not be every version of it, so the numbers below cover every version of this model year. Every version

Owner complaints, recalls, fuel economy and safety ratings from public NHTSA and EPA data, updated Oct 18, 2026.

Fuel economy
24–26 mpgcombined; city 22–24, highway 29–30; every version of this model year
Five years of fuel
$15,480–$16,770U.S. average; Ohio $14,580–$15,800 at local prices; every version of this model year; fuel only, not other costs of owning it; 15,000 miles a year, at EIA fuel prices for the week of Oct 12, 2026
NHTSA overall safety rating
Not ratedlowest across the versions NHTSA tested
Recall campaigns
1over its history; check a VIN for open ones
Owner complaints
12filed with NHTSA; not adjusted for sales

Trims

NHTSA's VIN data lists these trims for the 2021 XT4. A trim's engine and numbers are shown as its own only where EPA names versions after the trim and no other version could be it; "seen with" means a source shows that engine on the trim, not that it was the only one. Recalls and complaints cover the whole model year: whether a recall applies to a car depends on its VIN, on NHTSA's recall lookup.

Problems owners report

Owners have filed 12 complaints with NHTSA about the 2021 XT4. These are unverified owner reports, counted by the part of the car they name; one complaint can name several parts. Counts aren't adjusted for how many were sold, so they don't show how reliable a car is.

Complaints by part of the car
PartComplaintsCrashesFiresInjuries
Fuel/propulsion system4000
Electrical system3100
Air bags1000
Back over prevention1000
Engine1000
Engine and engine cooling1000
Exterior lighting1000
Forward collision avoidance1100
Fuel system, gasoline1000
Power train1000
Unknown or other1000
What the columns count

Complaints by model year

Newer years have had less time to collect complaints, and counts aren't adjusted for sales, so a shorter bar doesn't mean a more reliable year.

  1. 201920
  2. 202018
  3. 202112
  4. 20224
  5. 202312
  6. 202432
  7. 202510

Every XT4 year side by side

Recalls

NHTSA lists 1 recall campaign for the 2021 XT4 over its history. Campaigns are matched by model and year, so each one may apply to a given car, and its repair may already be done: check a VIN on NHTSA's recall lookup for the open recalls on that exact car.

Seat belts: critical fasteners; Seat belts: rear/other

NHTSA campaign 21V649000 · reported Aug 20, 2021 · 402 vehicles potentially affected across the whole campaign

Remedy: Dealers will inspect and tighten the rear seat belt retractors, as necessary, free of charge. Owner notification letters were mailed on September 17, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020 and Cadillac customer service at 1-800-458-8006. GM's number for this recall is N212333380.

General Motors, LLC (GM) is recalling certain 2016-2021 Chevrolet Malibu and 2019-2021 Cadillac XT4 vehicles. The rear seat belt retractors may be improperly secured with loose or missing fasteners.

Risk: An improperly secured seat belt retractor may not function properly in a crash, increasing the risk of injury.

NHTSA's record and documents

Service bulletins and investigations

Carmakers sent NHTSA 685 service bulletins and notices that cover the 2021 XT4, the latest on Sep 26, 2026. They tell dealers how to fix known issues.

The parts they mention most: equipment (193), electrical system (153), unknown or other (111), engine and engine cooling (106), power train (68).

NHTSA defect investigations

Opening an investigation isn't a finding of a defect. Outcomes are as NHTSA's summary states them. A recall is shown as an investigation's outcome only where NHTSA's summary names it; other recalls NHTSA's file lists with it are marked as listed, not caused.

InvestigationPartOpenedStatus
Preliminary evaluation PE21010
Air Bag Malfunction · covers 3 makes
Air bagsApr 9, 2021Closed Aug 24, 2023
NHTSA's record and documents

Maintenance

Oil

The owner's manual gives the oil and how often to change it. We show oil facts only once we've checked them against the manual, and we haven't yet for the 2021 XT4.

Oil change near you: Jiffy Lube · Take 5

Specs

EPA class: small sport utility vehicle. EPA greenhouse gas score: 5 out of 10. Each version EPA tested:

VersionEngineTransmissionFuelCity / hwy / comb
XT4
Front-Wheel Drive
2.0 L, 4 cyl, turboAutomatic (S9)Premium Gasoline24 / 30 / 26
XT4
All-Wheel Drive
2.0 L, 4 cyl, turboAutomatic (S9)Premium Gasoline22 / 29 / 24

Sources and dates

Fuel cost: EPA mpg with fuel prices for the week of Oct 12, 2026 and electricity prices for Jul 2026. Source: U.S. Energy Information Administration (Oct 2026). Complaints are unverified reports owners filed with NHTSA. About the data