2018 Buick Cascada Problems
- Complaints
- 11filed with NHTSA
- Median mileage
- 72,000miles, 3 complaints with mileage
- Recalls
- 0campaigns on record
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
- NHTSA crash rating
- 5 / 5stars overall
- EPA fuel economy
- 24 mpgcombined, 1.6L 4-cyl FWD · 21 city / 29 hwy
Sources: NHTSA records for the 2018 Buick Cascada (complaints, recalls, investigations), NHTSA crash tests, EPA fuel economy. Report an error
NHTSA recorded 11 consumer complaints for the 2018 Buick Cascada. The part named most often is engine, with 4 complaints (36% of the total), followed by engine cooling (2) and air bags (1). 3 of the complaints include a mileage, and 33% of those were filed for vehicles with under 50,000 miles; the median is 72,000 miles. Of all complaints, 1 involved a crash, 1 an injury, according to the filers. NHTSA lists 0 recall campaigns and 717 technical service bulletins for this model year. Engine complaints overlap with 69 technical service bulletins filed under the same part. Engine cooling complaints overlap with 90 technical service bulletins filed under the same part.
This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.
Which parts are reported most
Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.
- Engine4 36%
- Engine cooling2 18%
- Air bags1 9.1%
- Brakes1 9.1%
- Other or unknown1 9.1%
- Body and structure1 9.1%
Example 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. …”
NHTSA complaint #11748141, filed 2026-07Engine 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.”
NHTSA complaint #11728477, filed 2026-04, 72,000 milesAir 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 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. …”
NHTSA complaint #11422014, filed 2021-06Mileage when problems were reported
33% of the 3 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 8,088 and 80,000 miles.
Complaints by year filed
Fewer than 15 complaints, too few for a reliable trend.
Crash test ratings
NHTSA's 5-Star Safety Ratings for the 2018 Buick Cascada. Frontal results are shown driver / passenger; rollover shows the star rating and NHTSA's estimated risk of rolling over in a single-vehicle crash.
| Version | Overall | Frontal | Side | Side pole | Rollover |
|---|---|---|---|---|---|
| Cascada · C FWD | ★★★★★ | 4 / 4 | 5 | 5 | 4 · 11.1% risk |
Driver aids listed by NHTSA for the 2018 model year: forward collision warning optional, lane departure warning optional, automatic emergency braking not available.
Neighbouring years: 2017: same overall rating; 2019: same overall rating. A redesign between years can change both the car and the test.
Source: NHTSA New Car Assessment Program (5-Star Safety Ratings), nhtsa.gov/ratings.
Fuel economy and running cost
EPA ratings for each 2018 Buick Cascada version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).
| Version | Engine | Transmission | City | Hwy | Comb. | Fuel / yr |
|---|---|---|---|---|---|---|
| Cascada FWD | 1.6L 4-cyl | 6-speed automatic | 21 | 29 | 24 | $3,400 |
Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.
Recalls and investigations
NHTSA lists no recall campaigns for the 2018 Buick Cascada in the data used here. A recall can apply to some vehicles of a model year and not others, so check a specific vehicle by VIN at nhtsa.gov/recalls.
Technical service bulletins
TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 717 on record; the latest 10 are shown.
- 11037555Sep 26, 2026Other or unknown. This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
- 11037253Sep 4, 2026Other or unknown. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- 11035340Jul 21, 2026Other or unknown. PI to help diagnose A/C concern
- 11030974Apr 1, 2026Other or unknown. This preliminary information communicates information about how to determine if a wheel and tires size change is available.
- 11030092Mar 9, 2026Other or unknown. This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
- 11030091Mar 9, 2026Other or unknown. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- 11027601Jan 8, 2026Other or unknown. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- 11025755Nov 20, 2025Other or unknown. This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit…
- 11023091Sep 9, 2025Other or unknown. New Vehicle Monitoring Programs Section in IVH
- 11022084Aug 14, 2025Other or unknown. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
Other model years of the Buick Cascada
| Year | Complaints | Median mi | Recalls | Crash ★ | MPG | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|---|
| 2019 | 5 | 50,300 | 0 | 5 | 24 | — | Not enough data |
| 2018 | 11 | 72,000 | 0 | 5 | 24 | — | Not enough data |
| 2017 | 15 | 21,318 | 0 | 5 | 23 | — | Rising |
| 2016 | 22 | 18,500 | 1 | 5 | 23 | — | Falling |
Frequently asked questions
How many NHTSA complaints does the 2018 Buick Cascada have?
NHTSA recorded 11 consumer complaints for the 2018 Buick Cascada as of Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
What part of the 2018 Buick Cascada is reported most often?
Engine is named most often, in 4 complaints (36% of the total), followed by engine cooling with 2.
Has the 2018 Buick Cascada been recalled?
NHTSA lists no recall campaigns for this model year in the data used here. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.
How did the 2018 Buick Cascada do in NHTSA crash tests?
NHTSA's 5-Star Safety Ratings give the 2018 Buick Cascada 5 out of 5 stars overall. Ratings from different model years are only comparable when the vehicle was not redesigned in between.
What gas mileage does the 2018 Buick Cascada get?
The EPA rates the 2018 Buick Cascada (Cascada, 1.6L 4-cyl) at 24 mpg combined, 21 city and 29 highway, with an estimated annual fuel cost of $3,400 at 15,000 miles a year. Other engine and drive versions are rated differently.
At what mileage are problems with the 2018 Buick Cascada reported?
Among the 3 complaints that include a mileage, the median is 72,000 miles and the middle half falls between 8,088 and 80,000 miles; 33% were filed for vehicles with under 50,000 miles.
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Crash ratings are from NHTSA’s New Car Assessment Program. Fuel economy is from the EPA and DOE (fueleconomy.gov).
Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.