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2018 Cadillac CTS Report

Known issues, recalls, running costs, and what to check before you buy.

Updated May 30, 2026·Ethan Miller·3 Critical Recalls

Overall Score

6.1/ 10
Our Verdict
Proceed with caution

Key Takeaways

  • Electric power steering (EPS) failures are a critical concern, leading to loss of steering assist. Confirm relevant recalls are addressed.
  • Powertrain issues, including rear differential failures and transmission complaints, are frequently reported and can be costly to repair.
  • The high number of Technical Service Bulletins (TSBs) suggests a potential for ongoing minor issues and diagnostic challenges.
  • While safety ratings are not provided, critical recalls and complaints highlight potential safety vulnerabilities.
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OverviewWho This Car Is ForReliability & ProblemsVehicle SpecsUnlock Full ReportFAQ
Overview

2018 Cadillac CTS

The 2018 Cadillac CTS offers a blend of luxury and performance, but used buyers should approach with caution. Its below-average reliability verdict stems from significant issues, most notably electric power steering failures and concerning powertrain complaints. While it delivers a premium experience, potential buyers must prioritize thorough inspections to mitigate ownership risks.

Critical Failure Risk

Reports indicate potential failure of the rear differential, sometimes occurring around 41,000 miles. This issue can be compounded by significant parts availability delays, extending repair times to several months.

Early detection can help you avoid a $1,500-$3,000 repair.

Open Maintenance Analysis →

Safety & Bulletins

Open Recalls3
Service Bulletins0
Full Recall History →

Owner Complaints

7
Power Train2
Detailed Issue Breakdown →

Performance & Efficiency

Fuel Efficiency
Combined
19
MPG
City
16
MPG
Highway
24
MPG
Full Vehicle Specifications ↓

Reliability

8.2/ 10

Practicality

4.5/ 10

The score is mainly limited by high fuel consumption.

Buyer Fit

Who This Car Is For

Best for

Discerning buyers prioritizing luxury and driving dynamics over long-term reliability.

+2 more buyer-fit notes in the full report

Avoid if

Buyers seeking a trouble-free ownership experience and minimal repair bills.

+2 more buyer-fit warnings in the full report

2018 Cadillac CTS Reliability Analysis

Explore comprehensive reliability data including official safety recalls, consumer complaints, and common mechanical failures for the 2018 Cadillac CTS.

  • Recall TimelineOfficial safety notices
  • Owner ComplaintsReal driver reports
  • Failure AnalysisKnown part defects
Specs

Vehicle Specs

Fuel Type
Premium
Seating Capacity
5
Transmission
Automatic
Drivetrain
AWD/All-Wheel Drive
Body Style
Wagon
EPA Combined MPG
19

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Most Common Issues

1. Powertrain

Most reported

Usage: 2 reports

2. EXTERIOR LIGHTING

Usage: 1 reports

See all common issues in the maintenance guide

First Service Interval

- Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation - Inspect Brakes

Est. shop cost: $150 - $250

7,500 mi

Unlock the full maintenance guide for every scheduled service interval and cost forecast.

Full pre-purchase inspection checklist
Complete maintenance schedule (5 service intervals)
Repair forecasts with mileage and cost context
Full buyer-fit guidance and who should avoid it
Full specs and trim-level context
3 recall campaign details & remedy notes
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FAQ

FAQ

Is the 2018 Cadillac CTS reliable?▾

The CarFocal Reliability Score for the 2018 Cadillac CTS is 8.2/10. Reliability score is 8.2/10. NHTSA recalls: 3. Owner complaints: 7.

How practical is the 2018 Cadillac CTS for daily use?▾

Practicality score is 4.5/10. The score is mainly limited by high fuel consumption. EPA combined economy is 19 MPG. Seating capacity is 5. 4 passenger doors are listed.

What is the overall score for the 2018 Cadillac CTS?▾

The CarFocal Overall Score for the 2018 Cadillac CTS is 6.1/10. Overall score is 6.1/10 (Mixed). Confidence 55%. Maintenance 8.1/10. Practicality 4.5/10.

What does it cost to own and maintain a 2018 Cadillac CTS?▾

Based on Carfocal's data, First listed service: - Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation - Inspect Brakes at 7,500 miles. Estimated first-year maintenance: $500 - $1,000. Repair prediction highlight: Rear Differential (typical at 41,000 miles, estimated cost Min: $1,500 • Max: $3,000).

What is the MSRP range for the 2018 Cadillac CTS?▾

Base MSRP is $52,195.

What engine is in the 2018 Cadillac CTS?▾

Engine specs list 6 • 3.6.

What transmission does the 2018 Cadillac CTS use?▾

According to CarFocal's specs for the 2018 Cadillac CTS, transmission is Automatic. The paired drivetrain is AWD/All-Wheel Drive.

Does the 2018 CTS require Premium gas?▾

Manufacturer fuel recommendation: Premium.

What is the combined EPA MPG for the 2018 Cadillac CTS?▾

EPA combined estimate is 19 MPG.

What driver assistance and safety features are available on the 2018 Cadillac CTS?▾

13 standard driver assistance features. Key features include Anti-lock Braking System, Electronic Stability Control, Traction Control.

How many people fit in a 2018 Cadillac CTS?▾

According to CarFocal's specs for the 2018 Cadillac CTS, seating capacity is 5.

What body style is the 2018 Cadillac CTS?▾

According to CarFocal's specs for the 2018 Cadillac CTS, body style is wagon.

What drivetrain does the 2018 Cadillac CTS use?▾

According to CarFocal's specs for the 2018 Cadillac CTS, drivetrain is AWD/All-Wheel Drive. Transmission is Automatic.

What are the most common power train problems on the 2018 Cadillac CTS?▾

Top complaint category: power train (2 reports, 28.6% of complaints).

Are there open safety recalls on the 2018 Cadillac CTS?▾

This model year has 3 official safety campaigns listed.

Should buyers consider alternatives to the 2018 Cadillac CTS?▾

Alternatives listed in this guide: 2018 Mercedes-Benz E-Class and 2018 Audi A6.

Start Here

Maintenance guide

Costs + intervals

Recall report

Campaigns + remedy notes

Owner complaints

Issue volume + categories

In this guide

  1. 01Overview
  2. 02Who This Car Is For
  3. 03Reliability & Problems
  4. 04Vehicle Specs
  5. 05Unlock Full Report
  6. 06FAQ

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