This page covers 1 recall, 58 owner complaints, NHTSA crash-test ratings and EPA fuel economy for the 2018 Chevrolet Impala.
22–25 mpg combined
9.4–10.7 L/100km
Large Cars
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted. Ranges reflect the 3 tested variants for this model year.
5/5 Overall
NHTSA 5-Star Safety Rating
Complaints about the 2018 Impala spread across several systems, with the powertrain drawing the most reports. Owners most commonly describe transmission-related hesitation and rough shifting, along with engine stalling or loss of power. Steering complaints are the second most-reported category, with owners describing sudden loss of steering response or the wheel locking up while maneuvering at low speeds, sometimes accompanied by a warning message but no clear diagnosis from technicians. Electrical system reports touch on a few different symptoms, including airbag warning lights illuminating unexpectedly and, in at least one isolated account, an airbag deploying on its own while the car was parked. A smaller number of reports mention brake pedal complaints, specifically that the pedal requires excessive force and the vehicle continues rolling before stopping.
58
Total Complaints
6
Crash-Related
2
With Injuries
By System
At a glance
What can fail
Rear brake caliper pistons may have inadequate coating, allowing gas pockets to form and reducing rear brake performance.
What the fix does
Dealers will bleed the brake system to remove gas pockets and restore brake performance at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
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Driver Assistance
Ratings from NHTSA's New Car Assessment Program (NCAP).
Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
