“It has the stop start technology and I hate it. I'll trade it as soon as I keep from losing my shirt”
2015 Chevrolet Impala: What's New, Specs & Features
Last updated August 4, 2026
The biggest change for the 2015 Chevrolet Impala is the arrival of factory bi-fuel CNG models that run on gasoline or compressed natural gas. It is otherwise a modest update, with stop/start added to 2.5-liter gasoline versions and no major redesign.
About the 2015 Chevrolet Impala
10th generation (2014-2020), second model year after the redesign.
Chevrolet positioned the 2015 Impala as a roomy, quiet full-size sedan with premium-looking styling and comfort that pushed it closer to near-luxury rivals than older Impalas had. The core appeal is straightforward: a big back seat, a large trunk, a calm highway ride, and an upscale cabin feel without stepping into a luxury brand. It is a comfort-first large sedan, not a sport sedan or budget basic model.
The 2015 Impala remains a roomy, quiet full-size sedan, with the LT serving as the better-equipped middle trim and the LTZ emphasizing comfort and driver-assistance features. The LT has an 8-inch touchscreen and dual-zone climate control, while the LTZ adds leather-appointed seating, heated front seats, keyless start, and features such as forward collision alert and blind-zone alert. The new LS CNG and LT CNG pair familiar trim equipment with a dual-fuel V6.
What changed, by category
Powertrain
New LS CNG and LT CNG models add a factory 3.6-liter bi-fuel V6 that runs on gasoline or compressed natural gas. The 2.5-liter gasoline engine in LS, LT, and LTZ models gains stop/start, which shuts off the engine while the car is stopped to help save fuel. The previous LS Eco and LT Eco trims are dropped.
2015 Chevrolet Impala specs and features by trim
| Feature | |||||
|---|---|---|---|---|---|
| Engine | 4-Cyl, ECOTEC, 2.5 Liter / V6, 3.6 Liter | V6, Flex Fuel, 3.6 Liter / 4-Cyl, ECOTEC, 2.5 Liter / V6, 3.6 Liter | V6, Flex Fuel, 3.6 Liter / 4-Cyl, ECOTEC, 2.5 Liter / V6, 3.6 Liter | V6, CNG, 3.6L | V6, CNG, 3.6L |
| Transmission | Automatic, 6-Spd | Auto, 6-Spd Overdrive / Automatic, 6-Spd | Auto, 6-Spd Overdrive / Automatic, 6-Spd | Auto, 6-Spd Overdrive | Auto, 6-Spd Overdrive |
| Drivetrain | FWD | FWD | FWD | FWD | FWD |
| Fuel Type | Gas | Flexible Fuel / Gas | Flexible Fuel / Gas | Natural Gas | Natural Gas |
| MPG City | 18–22 mpg | 18–22 mpg | 18–22 mpg | 17 mpg | 17 mpg |
| MPG Highway | 30–31 mpg | 28–31 mpg | 28–31 mpg | 25 mpg | 25 mpg |
| Horsepower | 196–302 hp | 196–305 hp | 196–305 hp | ||
| Torque | 186–252 lb-ft | 186–263 lb-ft | 186–263 lb-ft | ||
| Max Towing | 1000 lb | 1000 lb | 1000 lb | 1000 lb | 1000 lb |
| Trunk/Cargo | 18.6–18.8 cu-ft | 18.6–18.8 cu-ft | 18.6–18.8 cu-ft | 10 cu-ft | 10 cu-ft |
| Rear Legroom | 37.6–39.8 in | 37.6–39.8 in | 37.6–39.8 in | 39.8 in | 39.8 in |
| Seats | 5 | 5 | 5 | 5 | 5 |
| Doors | 4 | 4 | 4 | 4 | 4 |
| Adaptive Cruise Control | |||||
| Alarm System | |||||
| Blindspot Sensors | |||||
| Hill Start Assist | |||||
| Lane Departure Warning | |||||
| Rear Parking Sensors | |||||
| Rear View Camera | |||||
| Alloy Wheels | |||||
| Auto-Dimming Exterior Mirrors | |||||
| Fog Lights | |||||
| HID Headlights | |||||
| Heated Mirrors | |||||
| LED Daytime Running Lights | |||||
| Memory Exterior Mirrors | |||||
| Panorama Moon Roof | |||||
| Power Liftgate/Trunk Release | |||||
| Privacy Glass | |||||
| Rear Spoiler | |||||
| Remote Control Liftgate/Trunk Release | |||||
| Bluetooth | |||||
| Navigation System | |||||
| Premium Audio | |||||
| SD Card Slot | |||||
| Satellite Radio | |||||
| Touch Screen Monitor | |||||
| USB Ports | |||||
| Auto-Dimming Interior Mirror | |||||
| Automatic Air Conditioning | |||||
| Dual Power Front Seats | |||||
| Dual Power Lumbar Support Front Seats | |||||
| Dual-Zone Climate Control | |||||
| Folding Rear Seat | |||||
| Heated Front Seats | |||||
| Heated Steering Wheel | |||||
| Integrated Garage Door Opener | |||||
| Interior Ambient Lighting | |||||
| Leather Seats | |||||
| Leather-Wrapped Steering Wheel | |||||
| Memory Driver's Seat | |||||
| Memory Steering Wheel | |||||
| Power Driver Seat | |||||
| Proximity Keyless Entry | |||||
| Push-Button Engine Start | |||||
| Remote Start | |||||
| Tilt Wheel | |||||
| Tilt/Telescoping Steering Wheel | |||||
| Ventilated Front Seats | |||||
Frequently asked questions
What is the biggest change to the 2015 Chevrolet Impala?
The biggest change is the addition of LS CNG and LT CNG models. Their factory bi-fuel V6 runs on compressed natural gas or gasoline and automatically switches to gasoline when the CNG supply is depleted.
How does the 2015 Impala’s four-cylinder engine differ from the 2014 version?
The 2015 Impala’s 2.5-liter four-cylinder gains stop/start in LS, LT, and LTZ models. The system shuts off the engine while the car is stopped and restarts it when the driver moves off, helping reduce fuel use.
Were the Impala LS Eco and LT Eco trims offered for 2015?
No. The LS Eco and LT Eco trims were dropped for 2015, while the new LS CNG and LT CNG trims joined the lineup.
Was the 2015 Chevrolet Impala redesigned?
No. The 2015 Impala is the second model year of the generation introduced for 2014, so its exterior styling, cabin layout, and overall trim structure largely carry over.
Did the 2015 Impala receive major safety or infotainment changes?
No. There was no major lineup-wide change to standard safety or infotainment hardware for 2015. The LT retained its 8-inch touchscreen, and the LTZ continued to offer features such as forward collision alert, lane departure warning, blind-zone alert, and rear cross-traffic alert.
2015 Chevrolet Impala Reviews
What owners are saying about the 2015 Chevrolet Impala.
4.3
2015 Chevrolet Impala
(329 reviews)
“Great roomy car with good acceleration and decent gas mileage. But it developed an oil leak at less than 50,000 miles.”
“Nav system is inferior to my Google phone nav. My phone has superior 4G tech. The WiFi by the car was not as effective. It seems difficult to get out of the vehicle. Maybe I relax too much and make it difficult on myself though. Overall, this is the BEST vehicle I have ever owned.”