Reliable Auto DB

2018 Chevrolet Impala reliability

Is it reliable?

NHTSA's file on the 2018 Chevrolet Impala holds 59 complaints after 9 years, a rate of 9 per year. That is fewer complaints per year than most Impala years here — under the median of the other years, which is 16. NHTSA has 1 recall on file, including Caliper.

2012 Chevrolet Impala
Photo by U.S. National Highway Traffic Safety Administration, resized from the original. Wikimedia Commons Public domain
Complaints

59

Per year

9

Recalls

1

Years on the road

9

What owners report

The complaints owners file most often name Electrical system (11 of 59), then Powertrain (11) and Engine (7). Those filings include 6 that report a crash and 2 that report an injury.

Next to 2017 and 2019

The 2017 Impala has 116 complaints, 15 per year, and the 2019 has 28 complaints, 5 per year. The 2018 has fewer complaints per year than the 2017. The 2018 has more complaints per year than the 2019.

The complaint rate is complaints filed in this year’s first 3 years on the road, divided by however many of those years have passed. Recalls are a separate count. The numbers are for the US-market 2018 Chevrolet Impala. How we count. Data as of .

Recalls (1)

Recall hydraulic brakes, foundation components, disc, caliper 2018-08-30 · NHTSA campaign 18V576000
Summary 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.
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.

Complaints by component (59 total)

Electrical system
11
Powertrain
11
Engine
7
Service brakes
7
Steering
7
Air bags
6
Exterior lighting
4
Seats
3
Fuel and propulsion system
2
Speed control
2
Visibility and wipers
2
Wheels
2
Back-over prevention
1
Electronic stability control (ESC)
1
Fuel system, gasoline
1
Hydraulic brakes
1
Latches, locks, and linkages
1
Suspension
1
Tires
1
Show 11 more Show less
Crash-flagged

6

Fire-flagged

0

Injury reports

2

Death reports

0

Complaints filed per year

1201752018102019122020620216202252023620245202532026
Excerpts from recent NHTSA complaint filings
  • "The transmission failed, shifting is no longer smooth. It hesitates and shakes the entire car, and the car slows down to almost a crawl uphill. I understand this is an issue with Chevrolet Impalas. So now I have an…"
    Powertrain · filed 2026-06-26
  • "The contact owns a 2018 Chevrolet Impala. The contact stated that while the A/C was activated during the summer of 2025, the A/C failed to function as intended. The contact stated that hot air was blowing through the…"
    Fuel system, gasoline · filed 2026-03-30
  • "I was driving and parked the car at the store. After checking out I went to the car got ready to leave and started backing out and the car would not turn to the left at all. I took it to the shop and was told they do…"
    Steering · filed 2026-02-08
  • "Passenger side front seat. When occupied, airbag sensor located inside the seat is malfunctioning. My husbands safety is at risk when he's in the car. He tries moving the seat up, back, etc. Sometimes works and the…"
    Air bags, Seats · filed 2025-09-16
  • "The contact owns a 2018 Chevrolet Impala. The contact stated that recently, the driver’s side air bag deployed while the vehicle was parked and unattended overnight. Prior to the failure, the air bag warning light had…"
    Air bags · filed 2025-08-07

NHTSA crash ratings

Version Overall Front Side Rollover
2018 Chevrolet Impala 4 DR FWD 5 stars 5 stars 5 stars 4 stars

Stars are how this vehicle did in NHTSA crash tests. They are a safety result, separate from the complaint record. Not rated means that test was not run for this version.

Fuel economy

Trim Engine Transmission Drive City Hwy Combined Annual fuel cost
Impala 2.5L, 4-cyl Automatic (6-speed) Front-wheel drive 22 30 25 MPG $2600
Impala 3.6L, 6-cyl Automatic (6-speed) Front-wheel drive 18 28 22 MPG $2950
Impala 3.6L, 6-cyl Automatic (6-speed) Front-wheel drive 19 28 22 MPG $2950

Specs and fitment

10th generation, 2014–2020
Body styles Sedan
Oil 5W-20 (3.6L V6); 0W-20 (2.5L four-cylinder where equipped) , 6 qt capacity
Tire size 235/50R18 to 245/40R20 (trim-dependent)

Known issues for this generation

Recall 14V-409 covers certain 2014 Chevrolet Impala vehicles among other GM models: improperly torqued fasteners may allow steering or suspension joints to separate. Recall 18V-576 covers certain 2018-2019 Impala vehicles among other GM models: rear brake caliper pistons may have insufficient coating, reducing rear brake performance.

Compare

Previous year 2017 Chevrolet Impala Next year 2019 Chevrolet Impala See every Chevrolet Impala model year →

Frequently asked questions

Is the 2018 Chevrolet Impala reliable?

NHTSA's file on the 2018 Chevrolet Impala holds 59 complaints after 9 years, a rate of 9 per year. That is fewer complaints per year than most Impala years here — under the median of the other years, which is 16. NHTSA has 1 recall on file, including Caliper.

What are common problems with a 2018 Chevrolet Impala?

The complaints owners file most often name Electrical system (11 of 59), then Powertrain (11) and Engine (7). Those filings include 6 that report a crash and 2 that report an injury.

Is the 2018 Chevrolet Impala more reliable than the years next to it?

The 2017 Impala has 116 complaints, 15 per year, and the 2019 has 28 complaints, 5 per year. The 2018 has fewer complaints per year than the 2017. The 2018 has more complaints per year than the 2019.

Has the 2018 Chevrolet Impala been recalled?

The 2018 Chevrolet Impala has 1 recall on file with NHTSA. See the recalls table on this page for dates, components, and remedies.

How many complaints have owners filed about the 2018 Chevrolet Impala?

Owners have filed 59 complaints about the 2018 Chevrolet Impala with NHTSA.

What mpg does a 2018 Chevrolet Impala get?

EPA-rated combined fuel economy for the 2018 Chevrolet Impala is 23 MPG. See the fuel economy table on this page for city and highway figures by engine and transmission.

What generation is the 2016 Chevrolet Impala?

10th generation (2014-2020).

What oil does a 10th-generation Chevrolet Impala take?

US manuals for 2014-2020 list 5W-20 for the 3.6L V6 and 0W-20 for the 2.5L four-cylinder where equipped.

What tire sizes does a Chevrolet Impala use?

Ninth-gen fits often run 225/60R16 to 235/50R18; tenth-gen trims commonly use 235/50R18 to 245/40R20.