Is the 2018 Buick CASCADA reliable?

The 2018 Buick CASCADA has 10 complaints filed with NHTSA (0.6x the segment average). Our reliability verdict: above-average. Most common issue: ENGINE problems.

What are common problems with the 2018 Buick CASCADA?

Top problems: ENGINE (4 complaints, avg repair $500); BODY/STRUCTURE (1 complaints, avg repair $500); AIR BAGS (1 complaints, avg repair $500). Issues typically appear around 50K miles.

Are there any recalls on the 2018 Buick CASCADA?

No recalls have been issued for the 2018 Buick CASCADA.

How much does it cost to fuel a 2018 Buick CASCADA?

The 2018 Buick CASCADA gets 24 MPG combined. At current US average gas prices, driving 12,000 miles per year costs roughly $2000. See the interactive fuel cost calculator on this page for state-specific pricing.

How much does it cost to insure a 2018 Buick CASCADA?

Estimated US average full-coverage insurance for the 2018 Buick CASCADA is approximately $1,511/year (sedan-midsize 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.

2018 Buick CASCADA

Problems, Recalls & Reliability Report

Above Average

Quick Summary

The 2018 Buick CASCADA has 10 owner complaints filed with NHTSA — that's 0.6x the segment average of 16. The most common issue is engine problems (40% of all complaints), specifically: the contact owns a 2018 buick cascada. the contact stated that while operating the vehicle, there was a whistling sound coming from the engine compartment, with the check engine warning light displayed. the vehicle was taken to the local dealer who diagnosed that the intake manifold was faulty and n.

2 crash reports 2 injuries

Total Complaints

Recalls Issued

5/5

Safety Stars

0.6x

vs Segment Avg

Known Problems(top 5 of 7)

ENGINE

4 complaints

40%

• The contact owns a 2018 Buick Cascada. The contact stated that while operating the vehicle, there was a whistling sound coming from the engine compartment, with the check engine warning light displayed. The vehicle was taken to the local dealer who diagnosed that the intake manifold was faulty and n
• Camshaft cover recall on exact model car for different year model, recall doesn’t cover this years model, however, I have the same issue.
• PCV Failure at 62,000 miles. GM extended warranty on 2016 models that demonstrated this problem. Appears to be a design flaw and often fails again after repair. $2000 + job to repair

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

“The contact owns a 2018 Buick Cascada. The contact stated that while operating the vehicle, there was a whistling sound coming from the engine compartment, with the check engine warning light displayed. The vehicle was taken to the local dealer who diagnosed that the intake manifold was faulty and n”

— NHTSA complaint filing

Fuel Cost Calculator for 2018 Buick CASCADA

Live EIA prices

Annual miles driven: 12,000

Your state (affects local gasoline price)

Per year

$2,001

Per month

$167

Per mile

16.7¢

MPG

City driving (worst-case MPG)

$2,286/yr

Highway driving (best-case MPG)

$1,656/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 2018 Buick CASCADA

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

$1,511

Full coverage / month

$126

Liability only / year

$574

vs US avg

-10%

How this estimate is calculated

US base full-coverage premium$1674

× state (US)1.00x

× vehicle class (sedan-midsize)0.96x

× theft risk1.00x

× safety rating0.94x

× vehicle age1.00x

= Full coverage estimate$1511

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

Maintenance & Warranty

Buick 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 Buick. If you're buying a used 2018 CASCADA, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Buick dealer for VIN-specific remaining warranty.

Estimated Repair Costs

ENGINE(~50K mi)

$500

BODY/STRUCTURE(~50K mi)

$500

AIR BAGS(~50K mi)

$500

BRAKES(~50K mi)

$500

VISIBILITY(~50K mi)

$500

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

🔍 Pre-Purchase Inspection Checklist

Based on 10 owner complaints for this specific year, here's what to check or ask about:

☐
ENGINE: The contact owns a 2018 Buick Cascada. The contact stated that while operating the vehicle, there was a whistling sound coming from the engine compartment, with the check engine warning light displayed. The vehicle was taken to the local dealer who diagnosed that the intake manifold was faulty and n
Typically appears around 50K miles. Repair cost ~$500
☐
BODY/STRUCTURE: BOTH QUARTER PANELS HAVE AT 25 ROCK CHIPS. THE FRONT WHEEL STICKS OUT AND IS FLICKING THE ROCK BACK TO THE QUARTER PANELS WHICH STICKS EVEN FURTHER OUT.
Typically appears around 50K miles. Repair cost ~$500
☐
AIR BAGS: The contact rented a 2018 Buick Cascada. The contact stated while driving at 5 MPH and making a right turn, the brake pedal was depressed but failed to respond, which caused another vehicle going at an undisclosed speed to crash into the front driver side of the vehicle. There were no warning lights
Typically appears around 50K miles. Repair cost ~$500
☐
BRAKES: The contact rented a 2018 Buick Cascada. The contact stated while driving at 5 MPH and making a right turn, the brake pedal was depressed but failed to respond, which caused another vehicle going at an undisclosed speed to crash into the front driver side of the vehicle. There were no warning lights
Typically appears around 50K miles. Repair cost ~$500
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)