Model year record
2018 Buick Cascada recalls & problems
The 2018 Buick Cascada has no safety recalls on file with NHTSA, and 11 owner complaints. The most-reported problem area is engine (4 complaints).

Safety recalls
No safety recalls have been filed for the 2018 Buick Cascada.
Recall repairs are free at any authorised dealer. A recall listed here may already have been fixed on a particular car: enter its 17-character VIN at nhtsa.gov/recalls to see open recalls.
Crash test ratings
2018 Buick Cascada C FWD
| Frontal crash | ★★★★★ |
|---|---|
| Side crash | ★★★★★ |
| Rollover | ★★★★★ |
| Rollover risk | 11.1% |
Forward collision warning: Optional · Lane departure warning: Optional


NHTSA 5-Star Safety Ratings (New Car Assessment Program). Ratings are comparable only between vehicles of similar size and weight, and ratings from 2011 on use tougher tests than earlier years. Photos: NHTSA.
Fuel economy
Cascada
| City / highway | 21 / 29 mpg |
|---|---|
| Fuel | Premium Gasoline |
1.6 L · 4 cyl · Automatic (S6) · Front-Wheel Drive · about $3,400/year to fuel
EPA estimates from fueleconomy.gov for each engine and transmission sold. Annual cost is the EPA's estimate for 15,000 miles a year at its current fuel and electricity price assumptions. Your results will vary.
What owners report
| Problem area | Complaints | Typical mileage* |
|---|---|---|
| Engine | 4 | — |
| Engine and engine coolingExhaust system › Manifold/header/muffler/tail pipe | 2 | — |
| StructureBody | 1 | — |
| Air bags | 1 | — |
| Service brakes | 1 | — |
| Visibility/wiper | 1 | — |
| Power train | 1 | — |
| Unknown or other | 1 | — |
*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Recent owner complaints
- Engine
A squealing sound was coming from the top of my engine and I had low/rough idle and it progressed to a low voltage output and check engine lights. This happened while i was driving on the highway and my speed was eratic and I had to cross 2 lanes to get the next exit. The problem has been reproduced my an indepent service center. The PCV vent constantly pulled vacuum (was stuck open to atmosphere) and the sound was only relieved by removing the dip stick. No warning lamps messages or symptoms. There is NO part number difference in the Camshaft cover between model years 2016 thru 2019 Cascadas. I believe that the 2018 should be included in the same Special coverage as the 2016 and 2019 model…
- Engine
Vehicle is a 2018 requiring valve cover replacement due to an issue that was recalled on previous years, most recently 2016. Extended warranty was offered for these repairs. TSB Special Coverage N192291620 â Camshaft Cover Replacement (later superseded by N232395320). This should be reviewed for additional recalls.
- Engine and engine cooling
The contact owns a 2018 Buick Cascada. The contact stated that while operating the vehicle, the check engine warning light illuminated. The vehicle was taken to the local mechanic to be diagnosed, and it was determined that the air intake valve was faulty and needed to be replaced. The vehicle was not yet repaired. The local dealer was notified of the failure. The manufacturer was not yet contacted. The failure mileage was 72,000.
- Engine
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
- Unknown or other
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.
- Engine
Camshaft cover recall on exact model car for different year model, recall doesnât cover this years model, however, I have the same issue.
- Power train
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.
- Engine and engine cooling › Exhaust system › Manifold/header/muffler/tail pipe
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.
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.