Impala (2018)
NHTSA Safety Ratings About NHTSA ratings
Engine Reliability Ratings
LFX - SIDI: Spark Ignited Direct injection, VVT, E85 MAX, ALUM
3.6L 6-cylView details
Complaint Breakdown
Known Issues
Show 2 additional engine variants with limited data
Chevrolet Impala Unidentified Engine
View details
Complaint Breakdown
Known Issues
LCV -SIDI, DCVCP, VVT, DCVCP, E85 Max, E0-E100, Aluminum
2.5L 4-cylView details
Complaint Breakdown
Known Issues
Vehicle-Level Issues
These issues affect the Chevrolet Impala regardless of engine variant.
Recalls (1)
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.
All Generations
Alternatives in Full-Size Sedan
Frequently Asked Questions
What are the most common 2018-2018 Chevrolet Impala problems?
The 2018-2018 Chevrolet Impala has accumulated 58 NHTSA complaints. The most frequently reported problem areas are Electrical System, Transmission, Brakes. As with any used vehicle, an inspection before buying and a vehicle history report are recommended.
Which Chevrolet Impala engine is most reliable?
The 2018-2018 Chevrolet Impala was offered with 3 engine options. Based on NHTSA complaint data, the 3.6L 6-cyl has the lowest complaint density and is considered the most reliable choice for buyers.
Is the 2018-2018 Chevrolet Impala a good used car?
The 2018-2018 Chevrolet Impala can be a sound used car depending on trim, mileage, and maintenance history. With 58 total NHTSA complaints on record, prospective buyers should review the known problem areas and check for open recalls before buying.
How many NHTSA complaints does the 2018-2018 Chevrolet Impala have?
The 2018-2018 Chevrolet Impala has 58 complaints filed with NHTSA as of our latest data pull. Complaint counts reflect owner-reported issues and do not necessarily indicate defects or safety risks on their own.
What recalls affect the 2018-2018 Chevrolet Impala?
There is 1 NHTSA recall affecting some 2018-2018 Chevrolet Impala vehicles. Recall status varies by VIN — check the NHTSA recall database at recalls.nhtsa.dot.gov with your specific VIN to confirm which campaigns apply.
What should I check before buying a used Chevrolet Impala?
Before buying a used Chevrolet Impala, verify all open recalls are completed via the NHTSA VIN lookup tool. Pay particular attention to Electrical System, Transmission, Brakes, which are the most commonly reported problem areas. Request maintenance records, have an independent mechanic inspect the vehicle, and run a vehicle history report to check for prior accidents or title issues.
What are the NHTSA crash test ratings for the Impala?
The 2018 Chevrolet Impala received an overall 5-star safety rating from NHTSA. Frontal crash: 5 stars. Side crash: 5 stars. Rollover: 4 stars (12.1% rollover probability). Electronic Stability Control: Standard. Forward Collision Warning: Optional. Lane Departure Warning: Optional. These ratings are based on standardized crash tests conducted by the National Highway Traffic Safety Administration.
Data from NHTSA federal complaints database. 58 complaints analyzed. Data confidence: moderate. Last updated: 2026-07-24.