Geoff Penske Buick GMC

2021 Sierra 3500 Review

2021 GMC Sierra 3500 Onyx Black Towing Highway Geoff Penske Buick GMC

The 2021 GMC Sierra 3500 is a sharp heavy-duty pickup truck that ranges from purpose-built to luxurious, with a range of engine options and configurations.

Drivers in Shillington, Reading, and Lancaster can learn all about the new pickup with our 2021 Sierra 3500 review from Geoff Penske Buick GMC.


Sierra 3500 Performance

2021 GMC Sierra 3500 SLT Crew Cab Summit White Geoff Penske Buick GMC

The Sierra 3500 comes with a gasoline-powered 6.6-liter V8 that produces 401 horsepower and 464 lb-ft of torque, mated to a six-speed automatic transmission. Rear-wheel drive is standard, but four-wheel drive is optional. The uprated engine option is a Duramax® diesel 6.6-liter V8 that produces 445 horsepower and 910 lb-ft of torque, mated to a 10-speed automatic transmission. The Sierra 3500 is available in a single- or dual-rear-wheel axle.

Properly equipped, the Sierra 3500 can tow up to 35,500 pounds and offers a 7,442-pound payload capacity with the diesel engine, rear-wheel drive, the dual-rear-wheel axle, and the regular cab.


Sierra 3500 Interior

2021 GMC Sierra 3500 Interior Cabin Space Geoff Penske Buick GMC

The Sierra 3500 has an expansive cabin with an elegant design and practical features like a split-folding front bench, which can be replaced with bucket seats and a center console. Plenty of luxurious comfort features are available, such as heated and cooled seats, a heated steering wheel, and a head-up display.

While all models boast plenty of passenger space, the crew cab has ample head- and legroom for adults to stretch out and relax. You can get either standard or long cargo boxes with steps on each side of the bed for easy loading and unloading. Other cargo features include movable tie-downs, a 120-volt outlet, and the multi-function tailgate that has multiple positions for tailgating or as a mobile work surface.


Sierra 3500 Technology

2021 GMC Sierra 3500 Interior Dashboard Tech Geoff Penske Buick GMC

All Sierra 3500 models come with an infotainment system equipped with Android Auto™ and Apple CarPlay™, a feature that streams music and media from your phone to the vehicle’s onboard system. While you can use touchscreen inputs, the system also has physical knobs and buttons for frequently used functions like audio volume and climate control. Other tech features include navigation, satellite radio, and a rear-seat entertainment system for the kids.

Several safety features are available for the Sierra 3500, including a trailer camera with 15 different modes and a “transparent” mode, which practically looks through the attached trailer. Other features include Lane Departure Warning and Lane Change Alert, a feature that alerts you if you drift out of your lane and gently guides you back. Forward-collision mitigation with automated emergency braking is optional. It alerts you to potential frontal collisions and applies the brakes.


Test Drive the 2021 GMC Sierra 3500

With its numerous technology and safety features, innovative tailgate and towing features, and powerful performance options, the 2021 GMC Sierra 3500 has all you could need from a heavy-duty pickup truck.

Drivers in Shillington, Reading, and Lancaster can see the full 3500 lineup by visiting Geoff Penske Buick GMC. Give us a call or stop by our dealership to browse the 3500 options and schedule your test drive!

Contact Us

Geoff Penske Buick GMC

100 S MUSEUM RD
SHILLINGTON, PA 19607
Driving Directions
Sales 610-816-0815
Service 610-709-5125
Parts 610-726-1422
Monday 9:00AM - 7:00PM
Tuesday 9:00AM - 7:00PM
Wednesday 9:00AM - 7:00PM
Thursday 9:00AM - 7:00PM
Friday 9:00AM - 6:00PM
Saturday 9:00AM - 5:00PM
Sunday Closed
Monday 7:30AM - 5:00PM
Tuesday 7:30AM - 5:00PM
Wednesday 7:30AM - 5:00PM
Thursday 7:30AM - 5:00PM
Friday 7:30AM - 5:00PM
Saturday Closed
Sunday Closed
Monday 7:30AM - 5:00PM
Tuesday 7:30AM - 5:00PM
Wednesday 7:30AM - 5:00PM
Thursday 7:30AM - 5:00PM
Friday 7:30AM - 5:00PM
Saturday Closed
Sunday Closed