YearToAvoid

2018 Cadillac XTS Problems, Recalls & Reliability

Verdict

Best

Complaint Index

17/100

#6 most-complained of 7 XTS years

The 2018 Cadillac XTS has a complaint index of 17, the second-lowest among the 7 model years with data, and ranks 6th worst (meaning it's one of the best). It carries 7 complaints, 1 recall, and a top problem area of Brakes.

Complaints
7
Recalls
1
Crashes / fires
2 / 0
Injuries / deaths
0 / 0
NHTSA overall rating
5 / 5 ★
EPA combined MPG
18
16 city / 23 hwy

Top 2018 Cadillac XTS problems

NHTSA owner complaints by component group. Groups with 15+ complaints have their own page.

  1. Other3 (43%)
  2. Brakes2 (29%)
  3. Electrical System1 (14%)
  4. Fuel System1 (14%)

What owners report

  • Brake pedal fails to respond as expected, in one case leading to a low-speed crash into the vehicle ahead.
  • Rear brakes reported as failing again even after replacement, with the issue surfacing at a median mileage of 51,870.
  • Infotainment screen pixelates or goes black while driving, disabling the backup camera, climate control, and other convenience and safety features.
  • Vehicle becomes extremely difficult to start after refueling, traced by the owner to a vapor canister purge valve issue on the fuel system.
2018 Cadillac XTS complaints: complaints filed per month1Sep 2018Jun 2019Sep 2019May 2020Jun 2022Dec 2022Jun 2025
7 complaints filed with NHTSA from Sep 2018 to Jun 2025; peak Sep 2018 (1).

2018 Cadillac XTS recalls

1 NHTSA recall campaign list this model year.

  1. NHTSA 18V576000Aug 30, 2018Brakes210,628 vehicles

    Service brakes, hydraulic:foundation components:disc:caliper

    General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Equinox, Impala, Cruze, Volt and Bolt EV vehicles, GMC Terrain vehicles, Buick Lacrosse and Regal vehicles, Cadillac XTS and XTS Professional vehicles and 2018 Chevrolet Malibu vehicles. The rear brake caliper pistons may have an insufficient coating causing gas pockets to form, potentially reducing rear brake performance.

    Risk: A reduction of braking performance can increase the risk of a crash.

    Remedy: GM will notify owners, and dealers will bleed the vehicle's brake system, free of charge. The recall began October 11, 2018. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 18279.

2018 Cadillac XTS fuel economy and fuel cost

City
16 MPG
Highway
23 MPG
Combined
18 MPG
Annual fuel cost (EPA)
$3,800
15,000 mi/yr
Fuel
Regular
Current regular gas
$4.32/gal
national avg.

EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.

2018 compared with other XTS years

Complaint Index by model year (0 = fewest issues, 100 = most)02550751002013201420152016201720182019
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2016Caution5022018
2017Caution6724018
2018Best177118
2019Best05218

All Cadillac XTS years: best and worst →

Frequently asked questions

Is the 2018 Cadillac XTS reliable?
Based on NHTSA owner complaints and recalls, the 2018 XTS ranks 6th worst out of 7 model years, with a complaint index of 17 and a 'Best' verdict relative to other XTS years.
What problems does the 2018 Cadillac XTS have?
NHTSA lists 7 complaints for the 2018 XTS, with Brakes as the top problem area at 29% share, followed by Electrical System and Fuel System issues.
Does the 2018 Cadillac XTS have any recalls?
Yes, one recall (campaign 18V576000) covers a brake system issue; GM dealers bled the vehicle's brake system free of charge, and it is not a do-not-drive recall.
What year Cadillac XTS should I avoid?
Among the 7 model years with data, the 2013 XTS has the highest complaint index at 100 and is rated Avoid, followed by the 2014 model at a complaint index of 83.
At what mileage do 2018 Cadillac XTS brake problems occur?
The median mileage at failure for brake-related complaints on the 2018 XTS is 51,870 miles, based on NHTSA data.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.