Compare the2024 GMC AcadiaVS 2024 Toyota Sienna

The Acadia has a standard front seat center airbag, which deploys between the driver and front passenger, protecting them from injuries caused by striking each other in serious side impacts. The Sienna doesn’t offer front seat center airbags.

Both the Acadia and the Sienna have standard driver and passenger frontal airbags, front and rear side-impact airbags, side-impact head airbags, front seatbelt pretensioners, front wheel drive, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning, available all wheel drive, front parking sensors and driver alert monitors.

The Acadia’s corrosion warranty is 1 year longer than the Sienna’s (6 vs. 5 years).

There are over 35 percent more GMC dealers than there are Toyota dealers, which makes it easier should you ever need service under the Acadia’s warranty.

J.D. Power and Associates’ 2023 Initial Quality Study of new car owners surveyed provide the statistics that show that GMC vehicles are better in initial quality than Toyota vehicles. J.D. Power ranks GMC above average in initial quality. With 27 more problems per 100 vehicles, Toyota is rated below average.

The Acadia’s standard 2.5 turbo 4-cylinder produces 83 more horsepower (328 vs. 245) than the Sienna’s 2.5 DOHC 4-cylinder hybrid.

The Acadia FWD’s standard fuel tank has 1.4 gallons more fuel capacity than the Sienna (19.4 vs. 18 gallons), for longer range between fill-ups. The Acadia AWD’s standard fuel tank has 3.7 gallons more fuel capacity than the Sienna (21.7 vs. 18 gallons).

The Acadia has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The Sienna doesn’t offer a cap-less fueling system.

For better traction, the Acadia has larger standard tires than the Sienna (255/55R20 vs. 235/50R20). The Acadia Denali’s optional tires are larger than the largest tires available on the Sienna (275/45R22 vs. 235/50R20).

The Acadia’s standard tires provide better handling because they have a lower 55 series profile (height to width ratio) that provides a stiffer sidewall than the Sienna LE/XLE’s standard 65 series tires. The Acadia Denali’s optional tires have a lower 45 series profile than the Sienna XSE/FWD Platinum’s 50 series tires.

For better ride, handling and brake cooling the Acadia AT4 has standard 18-inch wheels. Smaller 17-inch wheels are standard on the Sienna LE/XLE. The Acadia Denali’s optional 22-inch wheels are larger than the 20-inch wheels on the Sienna XSE/FWD Platinum.

The GMC Acadia’s wheels have 6 lugs for longer wheel bearing life, less chance of rotor warping and greater strength. The Toyota Sienna only has 5 wheel lugs per wheel.

The Acadia has a standard easy tire fill system. When inflating the tires, the vehicle’s integrated tire pressure sensors keep track of the pressure as the tires fill and tell the driver when the tires are inflated to the proper pressure. The Sienna doesn’t offer vehicle monitored tire inflation.

For better maneuverability, the ’s turning circle is 38.3 feet tighter than the Sienna’s ( feet vs. 38.3 feet). The ’s turning circle is 39.2 feet tighter than the Sienna XSE/Platinum FWD’s ( feet vs. 39.2 feet).

For greater off-road capability the Acadia Elevation has a greater minimum ground clearance than the Sienna (6.8 vs. 6.4 inches), allowing the Acadia to travel over rougher terrain without being stopped or damaged. The Acadia AT4’s minimum ground clearance is .8 inch higher than on the Sienna Woodland Edition (7.8 vs. 7 inches).

The Acadia uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The Sienna doesn’t offer active noise cancellation.

The Acadia has 2.5 inches more front headroom, 4 inches more front legroom, .1 inches more rear headroom, 1.6 inches more rear legroom and .8 inches more third row headroom than the Sienna.

The Sienna’s spare tire is stored in the cargo area, where it diminishes the useable cargo capacity and interferes with loading and unloading. The Acadia’s spare is out of the way under the trunk floor.

Pressing a switch automatically lowers the Acadia Denali’s second row seats and pressing a switch automatically lowers or raises the third row seats, to make changing between passengers and cargo easier. The Sienna doesn’t offer automatic folding seats.

Maximum trailer towing in the Toyota Sienna is limited to 3500 pounds. The Acadia offers up to a 5000 lbs. towing capacity.

The Acadia uses gas struts to support the hood for easier service access. The Sienna uses a prop rod to support its heavy hood. It takes two hands to open the hood and set the prop rod, the prop rod gets in the way during maintenance and service, and the prop rod could be knocked out, causing the heavy hood to fall on the person maintaining or servicing the car.

The Acadia’s instruments include an oil pressure gauge and a temperature gauge - which could save your engine! Often ‘idiot lights’ don’t warn you until damage has been done. The Sienna does not have an oil pressure gauge.

The Acadia’s standard Keyless Access allow you to unlock the doors from either front door handle, open the cargo door, and start the engine, all without removing the key from the pocket or purse. Pushbutton Start standard on the Sienna only offers hands-free access for the ignition, none to unlock the van. Pushbutton Start is not available on the Sienna XLE/XSE/Woodland/Limited/Platinum.

The Acadia has a standard heated steering wheel to take the chill out of steering on extremely cold winter days before the vehicle heater warms up. A heated steering wheel is only available on the Sienna Platinum.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the GMC Acadia has a standard wireless phone charging system (Qi) in the center console. Wireless charging costs extra on the Sienna.

The Acadia’s optional Enhanced Automatic Parking Assist can parallel park or back into a parking spot by itself, stopping and changing direction automatically. The Sienna doesn’t offer an automated parking system.