How reliable is the 2018 Chevy Impala?
Generally speaking, the 2018 Impala is an average-to-solid choice in the full-size sedan segment when it comes to reliability.
The 2018 Impala offers a comfortable, spacious interior and a straightforward set of powertrain options. Reliability tends to be mid-pack for its class, with variation based on engine choice, maintenance history, and mileage. As with any used car, the most reliable path is to review complete service records, address any recalls, and have a pre-purchase inspection performed by a qualified mechanic before buying.
Reliability ratings and what they mean
Below is a snapshot of how major third-party sources typically view the 2018 Impala’s reliability. These points help you gauge how the model year stacks up overall.
- Consumer Reports and similar outlets generally rate the 2018 Impala as average for predicted reliability within the full-size sedan category.
- J.D. Power’s reliability studies for GM mid-sized and full-size sedans from this era place the Impala in the middle of the field, with results that vary by powertrain and individual vehicle history.
- RepairPal and other owner-oriented sources typically assign an average maintenance-reliability rating, reflecting typical repair costs and frequency for the model year.
In short, the consensus from these sources is that the 2018 Impala is dependable enough for daily use, but it isn’t among the most reliable in its class. Reliability can be bolstered by careful maintenance and addressing recalls promptly.
Key reliability considerations
When evaluating a used 2018 Impala, consider these reliability factors that can influence long-term durability.
- Powertrain differences: The Impala offered at least two engines (a 2.5L four-cylinder and a 3.6L V6). Maintenance costs and potential issues can vary between these powertrains, so consider the specific engine and its service history.
- Transmission behavior: The model year’s transmission setup can affect smoothness and longevity. Some owners report shifting or performance concerns at higher mileage; condition often depends on prior maintenance and driving patterns.
- Electronics and infotainment: The MyLink system and related electronics are a common area for owner-reported glitches, including touchscreen responsiveness and connectivity issues. Keeping software updated can help mitigate problems.
- Recall and service history: GM has issued recalls affecting various components across Impala years. Verifying recall status for the exact VIN and ensuring completed campaigns is important for reliability.
- Age and mileage: As with any 5- to 7-year-old vehicle, wear on suspension components, brakes, and wear items increases with mileage. Regular maintenance can offset many reliability risks.
Overall, reliability hinges on maintenance discipline and the absence of unrepaired recalls. A well-documented service history is a strong predictor of a long, trouble-free ownership experience.
Common issues reported by owners
Individual experiences vary, and not every 2018 Impala will have these problems. The list below reflects trends reported by owners and reviewers, with emphasis on typical problem areas observed in the model line.
- Infotainment and electrical glitches: Many owners report occasional glitches with the touch screen, Bluetooth connectivity, or other interior electronics, which software updates can often resolve.
- Transmission-related symptoms: Some high-mileage examples report rough or hesitant shifting or other transmission symptoms. For well-maintained units with moderate mileage, reliability tends to be reasonable.
- Airbag and recall-related campaigns: GM issued numerous recalls across the Impala line for safety-related components. Check for open or completed recalls using the VIN.
- General drivetrain wear: As with many large sedans, wear items such as brake pads, rotors, and suspension components may show wear with age, impacting overall reliability if not addressed.
To minimize risk, verify recall status, review service records, and have a used Impala inspected for signs of excessive wear or lurking electrical issues before purchase.
What to check when buying used
Before purchasing a used 2018 Impala, use this checklist to screen for potential reliability risks and to identify well-maintained examples.
- VIN-based recall status: Confirm all campaigns have been completed and there are no open recalls that affect safety or critical components.
- Maintenance history: Look for regular oil changes, filter changes, brake service, tire rotations, and any transmission service records. A clean, consistent maintenance history supports better long-term reliability.
- Transmission history: Ask for documentation of transmission fluid changes (if applicable) and any past detent or shifting concerns, especially on higher-mileage examples.
- Electrical system health: Check the battery, alternator, and start-up behavior; ensure infotainment systems operate smoothly during a test drive.
- Comprehensive vehicle history: Run a Carfax/AutoCheck report to spot accident history, title issues, or repeated service visits that might indicate recurring problems.
These checks help you separate well-maintained cars from ones that may incur higher ongoing costs, and they improve your odds of a reliable used purchase.
Summary
The 2018 Chevy Impala offers a spacious, comfortable ride with reliability that sits in the middle of its full-size sedan peers. For prospective buyers, a careful pre-purchase evaluation—emphasizing maintenance records, recall status, and a trusted inspection—will maximize the likelihood of a dependable vehicle. As always, verify recalls for your specific VIN and consider a model with a documented, consistent maintenance history to optimize long-term reliability.
