Verdict
2018 Chevrolet Impala: Complaints, Recalls & Known Issues
What the public record actually says about the 2018 Chevrolet Impala — every figure below is a NHTSA or EPA number, not an opinion.
The read
Middle-of-the-pack complaint volume for sedan.
Owners filed 59 NHTSA complaints — more complaints than 61% of 2018 sedans. Power Train leads the reports (19%). 1 safety recall campaign on record — check the VIN and remedy terms with a dealer.
Based on NHTSA complaint volume against 2018 sedans, not adjusted for how many were sold. It describes the model year, not the individual car you are looking at.
Complaints filed
59
Reports to NHTSA, 2018
Safety recalls
1
NHTSA campaigns on record
NHTSA crash test
Overall NCAP rating
Combined MPG
22
EPA estimate
Complaint volume vs. segment peers
More complaints than 61% of 2018 sedans
The bar is this car's percentile among 2018 sedans by complaint volume — a full bar means the fewest complaints in its class. Not adjusted for sales.
Known issues
Power Train issues lead owner complaints (19% of 59 reports), followed by unknown or other (19%).
+ 8 more component categories with fewer reports.
Share of all 59 NHTSA complaints for this model year, grouped by the component owners named. Bars are scaled to the largest category. Examples: ODI 11746623, ODI 11644539, ODI 11625701, ODI 11617470, ODI 11611424.
Recalls(1)
Open a recall to read what NHTSA says is wrong, what can happen, and how it gets fixed. Check the VIN and remedy eligibility with a dealer; federal no-charge requirements have an age limit, though a manufacturer may offer more coverage.
Service Brakes · 18V576000Details +Close −
General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Equinox, Impala, Cruze, Volt and Bolt EV vehicles, GMC Terrain vehicles, Buick Lacrosse and Regal vehicles, Cadillac XTS and XTS Professional vehicles and 2018 Chevrolet Malibu vehicles. The rear brake caliper pistons may have an insufficient coating causing gas pockets to form, potentially reducing rear brake performance.
Risk: A reduction of braking performance can increase the risk of a crash.
Remedy: GM will notify owners, and dealers will bleed the vehicle's brake system, free of charge. The recall began October 11, 2018. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 18279.
A campaign can apply to this model year without being incomplete on a specific vehicle. Check the VIN with NHTSA or a dealer to confirm whether a particular car needs repair.
Investigations
0 NHTSA investigations on record
No investigations are on record as of Jul 2026. An empty record is not a clean bill of health.
Crash-test ratings
2018 Chevrolet Impala 4 DR FWD NHTSA source
- Overall
- Frontal
- Side
- Rollover
Fuel economy by trim
| Trim | Engine | Drivetrain | Transmission | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| Impala | 2.5L 4-cyl | Front-Wheel Drive | Automatic (S6) | 22 | 30 | 25 |
| Impala | 3.6L 6-cyl | Front-Wheel Drive | Automatic (S6) | 19 | 28 | 22 |
| Impala | 3.6L 6-cyl | Front-Wheel Drive | Automatic (S6) | 18 | 28 | 22 |
EPA laboratory estimates by trim and engine. Actual mileage varies with driving, weather, load, and maintenance. EPA source.
Before you buy
Useful next checks
Federal records tell you about patterns. These checks can tell you more about the specific car in front of you.
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Compare model years
"Fewest reports" and "most complained" describe raw NHTSA complaint totals, not vehicle reliability. The last few model years are left unlabelled because they have had less road time.
2018 Chevrolet Impala: frequently asked
What does the complaint record show for the 2018 Chevrolet Impala?
Owners filed 59 NHTSA complaints about the 2018 Chevrolet Impala — more complaints than 61% of comparable 2018 sedans, so it sits toward the weaker end of its class. That's a signal, not a guarantee about any single car.
What are the most common problems on the 2018 Chevrolet Impala?
The most-reported problem areas are Power Train (19% of complaints) and unknown or other (19%).
How many recalls does the 2018 Chevrolet Impala have?
1 recall has been issued that affect the 2018 Chevrolet Impala, covering components such as service brakes. Check the VIN with NHTSA and ask a dealer to confirm remedy eligibility; federal no-charge requirements have an age limit, though manufacturers may offer more coverage.
What gas mileage does the 2018 Chevrolet Impala get?
The EPA rates the 2018 Chevrolet Impala between 22 and 25 mpg combined, depending on trim and drivetrain.