2019 Chevrolet Impala Specs – The Complete Performance
The 2019 Chevrolet Impala remains a standout choice for those seeking a spacious, powerful, and reliable full-size sedan. This guide provides a deep dive into the technical details, fluid capacities, and mechanical configurations to help owners and DIYers maintain peak performance.
Finding accurate technical data for a modern sedan can feel like a chore when you are staring at a cluttered engine bay. You want to know exactly what makes your car tick, whether you are planning a routine oil change or diagnosing a strange vibration. In this guide, I will break down the 2019 chevrolet impala specs so you can work on your vehicle with total confidence.
We will explore the differences between the fuel-efficient four-cylinder and the muscular V6 engine options. You will also find specific torque values, fluid types, and interior dimensions that define this classic American cruiser. By the end of this article, you will have a master-level understanding of your Impala’s mechanical DNA.
Whether you are a seasoned weekend mechanic or a first-time owner, having the right data is the first step toward a successful repair. Let’s get under the hood and look at the numbers that matter most for your daily drive and long-term maintenance.
Power Under the Hood: Engine and Drivetrain Options
The 2019 model year offered two distinct powertrains designed to balance efficiency and raw power. Most owners will find themselves behind the wheel of either the 2.5L inline-four or the highly-regarded 3.6L V6. Understanding these 2019 chevrolet impala specs is crucial for identifying which replacement parts you need to order.
The base engine is a 2.5L Ecotec four-cylinder engine, which features Intake Valve Lift Control and start/stop technology. This engine produces roughly 197 horsepower and 191 lb-ft of torque, making it a solid choice for highway cruising. It is paired with a 6-speed automatic transmission that focuses on smooth gear transitions rather than aggressive acceleration.
For those who crave more spirit, the 3.6L V6 (LFX) is the crown jewel of the lineup. It pumps out a stout 305 horsepower and 264 lb-ft of torque, allowing the heavy sedan to move with surprising agility. Both engines utilize a front-wheel-drive (FWD) layout, which provides reliable traction in most commuting scenarios.
The 2.5L LKV Engine Details
This engine is built for the long haul and features a cast aluminum block and head. It uses a timing chain rather than a belt, which significantly reduces long-term maintenance costs for the owner. Always ensure you use the correct Dexos 1 approved oil to keep the variable valve timing system functioning correctly.
The 3.6L LFX V6 Engine Details
The V6 is a dual overhead cam (DOHC) design with four valves per cylinder. It provides a much broader power band, which is ideal for merging onto fast-moving freeways. If you hear a slight ticking sound at idle, it is often just the high-pressure fuel injectors, which are a standard part of the direct injection system.
Comprehensive 2019 chevrolet impala specs for Maintenance
As an experienced technician, I cannot stress enough how important it is to use the exact fluids and torque values specified by the manufacturer. Using the wrong oil weight or over-tightening a bolt can lead to expensive failures down the road. Below are the critical 2019 chevrolet impala specs you need for your next garage session.
For the 2.5L engine, you should use 5.0 quarts of SAE 0W-20 synthetic oil. The 3.6L V6 requires a slightly larger volume, taking 6.0 quarts of SAE 5W-30 synthetic oil. Always replace the crush washer on the drain plug to prevent those annoying driveway drips that can lead to larger leaks.
When it comes to the cooling system, both engines use Dex-Cool (orange) coolant. Never mix this with the traditional green coolant, as it can create a gel-like substance that clogs your radiator and heater core. The 2.5L system holds about 7.2 quarts, while the V6 requires approximately 9.9 quarts for a full refill.
- Wheel Lug Nut Torque: 140 lb-ft (190 Nm)
- Spark Plug Gap (2.5L): 0.035 inches (0.9mm)
- Spark Plug Gap (3.6L): 0.044 inches (1.1mm)
- Transmission Fluid: Dexron VI (6-speed automatic)
Brake System Specifications
The Impala uses ventilated discs in the front and solid discs in the rear. If you are replacing the pads, ensure you clean the caliper slide pins and lubricate them with high-temperature silicone grease. The front rotors are 12.6 inches in diameter, providing ample stopping power for this 3,800-pound vehicle.
Battery and Charging System
The 2019 Impala typically uses an H6 (Group 48) battery. If your car has the start/stop feature, you must use an Absorbent Glass Mat (AGM) battery. Standard lead-acid batteries cannot handle the frequent cycling required by the start/stop system and will fail prematurely.
Interior Dimensions and Cargo Capacity: The Full-Size Experience
One of the primary reasons people choose the Impala is the sheer amount of interior real estate. It is one of the few remaining sedans that truly feels “full-size” in an era of compact crossovers. The 2019 chevrolet impala specs regarding interior volume are impressive for both passengers and luggage.
Front-seat passengers enjoy 45.8 inches of legroom, which is enough for even the tallest drivers to stretch out comfortably. The rear seat is equally accommodating, offering 39.8 inches of legroom. This makes the Impala an excellent choice for families or for those who frequently transport adult passengers in the back.
The trunk is another area where this sedan shines, providing 18.8 cubic feet of storage space. The opening is wide, and the floor is relatively flat, making it easy to load large suitcases or grocery hauls. You can also fold down the 60/40 split rear seats to accommodate longer items like lumber or skis.
Seating Materials and Comfort
Depending on the trim level, you will find anything from premium cloth to perforated leather-appointed seating. The Premier trim often includes heated and ventilated front seats, which are a lifesaver during extreme weather. The cabin is also exceptionally quiet thanks to Bose Active Noise Cancellation on higher trims.
Technology and Infotainment
The 2019 model comes standard with an 8-inch touchscreen running the Chevrolet Infotainment 3 system. It supports Apple CarPlay and Android Auto, allowing you to mirror your smartphone for navigation and music. The system is intuitive, with physical knobs for volume and tuning, which I always prefer over touch-only controls.
Trim Level Breakdown: LS, LT, and Premier
Choosing the right trim level changes the features you get, but the core 2019 chevrolet impala specs remain largely consistent across the board. However, the available engines and wheel sizes vary significantly between the entry-level and top-tier models. Knowing these differences helps you identify the specific needs of your vehicle.
The LS is the base trim, often found in fleet service, but it still offers a comfortable ride and basic power features. It usually comes with the 2.5L engine and 18-inch steel wheels with covers. It is a no-frills option that focuses on utility and cost-effectiveness for the daily commuter.
The LT is the mid-range choice and the most popular among private owners. It adds 18-inch alloy wheels, dual-zone climate control, and more premium interior materials. Many LT models were upgraded with the 3.6L V6 engine as an optional package, so check your VIN before buying engine parts.
- LS Trim: Basic essentials, 2.5L engine standard, 18-inch steel wheels.
- LT Trim: Enhanced comfort, optional V6 engine, 18-inch alloy wheels, remote start.
- Premier Trim: Luxury focused, 3.6L V6 standard, 19 or 20-inch wheels, leather interior.
The Premier Advantage
The Premier trim is the luxury flagship of the lineup. It comes standard with the V6 engine and adds advanced safety features like Forward Collision Alert and Lane Departure Warning. The larger 19-inch or 20-inch wheels give it a more aggressive stance, though they do result in a slightly firmer ride.
Wheel and Tire Considerations
If you have the Premier trim with 20-inch wheels, be prepared for higher tire replacement costs. These low-profile tires offer better handling but are more susceptible to pothole damage. For a smoother ride, many owners prefer the 18-inch wheels found on the LS and LT trims because the taller sidewall absorbs road imperfections better.
Common Issues and Troubleshooting for the 2019 Impala
No vehicle is perfect, and the Impala has a few quirks that every DIYer should watch out for. Being proactive can prevent a small sensor issue from turning into a roadside breakdown. I recommend keeping a basic OBD-II scan tool in your trunk to check for codes whenever a warning light appears.
One common complaint involves the transmission’s shift quality. Some owners report a “harsh” shift between second and third gear. Often, this can be resolved with a Transmission Control Module (TCM) software update from the dealer. Always check your fluid level first, as low fluid is the most frequent cause of shifting issues.
Another area to monitor is the cooling fan assembly. In some cases, the fans may stay on after the car is turned off or fail to trigger when the engine gets hot. This is usually due to a faulty relay or a failing fan motor. If your temperature gauge starts to climb while idling in traffic, check your fans immediately.
Suspension Noises
If you hear a clunking sound when driving over bumps, inspect your sway bar end links. These are relatively inexpensive and easy to replace in your driveway with basic hand tools. Also, check the lower control arm bushings for cracks, as these can cause alignment issues and uneven tire wear.
Electrical Gremlins
Modern cars are sensitive to battery voltage. If you start seeing random “Service StabiliTrak” or “Power Steering Assist Reduced” messages, your battery might be failing. Even if the car still starts, a weak battery can cause the sensitive electronics to report false errors.
Frequently Asked Questions About 2019 chevrolet impala specs
What is the towing capacity of the 2019 Chevrolet Impala?
The 2019 Impala is not primarily designed for towing. However, when properly equipped with the 3.6L V6 engine, it has a maximum towing capacity of 1,000 pounds. Always use a Class I hitch and ensure your trailer has proper lighting and safety chains.
Does the 2019 Impala require premium gasoline?
No, both the 2.5L and 3.6L engines are designed to run on 87-octane regular unleaded gasoline. While the V6 can benefit slightly from higher octane in very hot weather or under heavy loads, it is not required for normal operation.
Is the 2019 Chevrolet Impala a reliable car?
Generally, yes. The 2019 chevrolet impala specs show a vehicle built on a proven platform (the Epsilon II). The 3.6L LFX engine is used across many GM vehicles and is known for its durability if the oil is changed regularly.
How often should I change the transmission fluid?
Under “normal” driving conditions, Chevrolet suggests a long interval. However, most mechanics recommend a fluid exchange every 45,000 to 60,000 miles. This is especially important if you do a lot of stop-and-go city driving or live in a very hot climate.
What are the safety ratings for the 2019 Impala?
The 2019 Impala received high marks from both the NHTSA and the IIHS. It earned a 5-star overall safety rating from the NHTSA. Standard safety features include 10 airbags and a high-strength steel safety cage to protect occupants during a collision.
Final Thoughts for the DIY Mechanic
The 2019 Chevrolet Impala is a rewarding vehicle to own and maintain. Its layout is relatively straightforward compared to many modern luxury cars, making it a great candidate for DIY projects. By following the 2019 chevrolet impala specs provided in this guide, you can ensure your car stays safe and reliable.
Remember to always use a jack stand when working under the vehicle and never rely solely on a floor jack. Use a torque wrench for critical components like lug nuts and spark plugs to avoid stripping threads. Taking the time to do the job right the first time will save you hours of frustration later.
Whether you are changing your own oil or just checking your tire pressures, being an informed owner is the best way to protect your investment. Keep this guide handy for your next maintenance interval, and don’t be afraid to get your hands dirty. Stay safe, keep your tools organized, and enjoy the smooth ride of your Impala!
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