2018 BUICK Cascada Problems

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Premium Report

Complaints Reported

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Complaints by Component

UNKNOWN OR OTHER

1 complaint

While driving down the highway my vehicle decreased in power and then I heard a loud whistle or whining sound. Upon examination at the dealership, they determined that the PCV system had failed. The positive crankcase ventilation system caused my Camm to leak and created a vacuum leak which blew out the seals of my vehicle. Upon further investigation I found that GM was involved in a class action lawsuit for the 2016 models and that an extended warranty was given for 2016 -2019 Cascada models. 15 years 150,000 miles. However, my vin and year was not included for the same problem.

Oct 09, 2025

ENGINE

1 complaint

Camshaft cover recall on exact model car for different year model, recall doesn’t cover this years model, however, I have the same issue.

Sep 03, 2025

POWER TRAIN

1 complaint

Chirping sound from under hood took to GM dealer, they changed the belt and transitioned and was still chirping. Now say it is pvc/camshaft cover.

Jul 11, 2025

ENGINE AND ENGINE COOLING

1 complaint

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 needed to be replaced. The vehicle was not yet repaired. The manufacturer was not contacted. The failure mileage was 80,000.

Jan 22, 2025

VISIBILITY/WIPER

1 complaint

17-NA-216 was originally issued in in 2017 updated in 2019 to include 2018 model. Back windshield detaches from canvas/folding top. Was concerned primarily about safety of my child who drives car that windshield would completely fly off when driving. I replaced the folding top cover per bulletin. GM refused to reimburse stating not recalled since not safety issue. I disagree. Damage it could cause if flys off while driving could cause an accident for driver or other cars on the road who are hit with window or avoid being hit.

Apr 18, 2023

AIR BAGS,SERVICE BRAKES

1 complaint

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 illuminated. The air bags failed to deploy. The contact was knocked unconscious and was able to exit the vehicle with the assistance of emergency services. The contact went to the hospital the next day and was informed she had sustained a broken sternum. A police report was filed. The vehicle was towed to an undisclosed location. The dealer was made aware of the failure and advised to tow the vehicle to their location so they could diagnose it. The manufacturer was made aware of the failure and did not provide assistance. The VIN and failure mileage was unavailable.

Jun 23, 2021

Crash: 1

Injuries: 1

STRUCTURE

1 complaint

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.

Feb 24, 2020

4.7/5.0

90 reviews

Frequently Asked Questions

How many problems does the 2018 BUICK Cascada have?

The 2018 BUICK Cascada currently has 7 owner-reported complaints according to NHTSA database. These complaints are organized by component to help identify common issues.

What are the most common problems with 2018 BUICK Cascada?

The most common problems reported for the 2018 BUICK Cascada are organized by component above. Each component section shows owner-reported issues, crash reports, and fire incidents to help identify patterns and problem areas.

Where does this 2018 BUICK Cascada problem data come from?

All problem and complaint data for the 2018 BUICK Cascada comes directly from the National Highway Traffic Safety Administration (NHTSA) database. These are real complaints submitted by actual vehicle owners.