What Is Under the Hood of the 2021 Tahoe?
While a lot is expected to change over the previous model, this new generation of the Tahoe will be carrying over the two engine options from its predecessors. The standard base engine is a 355 horsepower, 383 lb-ft V8, which is under the hood of the LS, LT, Z71, RST, and Premier models. The top of the line High Country gets the 6.2L V8 which puts out 420 horsepower with 460 lb-ft of torque. Both engine options have made improvements by switching out the active fuel management system for newer dynamic fuel management technology, which allows the engine to shut down cylinders if needed through more than 12 different modes of deactivation. The engines also now have automatic start-stop functionality.
Will There Be a Diesel Engine in the 2021 Tahoe?
A new under the hood option on all of the trim levels except the Z71 is a Duramax 3.0L I6 turbocharged diesel, getting up to 277 horsepower and 460 lb-ft of torque. This unique option puts GM in the role of being the only manufacturer to offer a diesel in a full-size SUV. The effects on fuel economy numbers are still to be determined, but this engine offering is likely to produce some of the highest fuel economy ratings compared to other vehicles in this class. Both engines are paired with a 10-speed automatic transmission with rear-wheel drive the standard configuration. All-wheel drive will be available as an option.
Electric or Hybrid Options?
The underlying architecture of the new Tahoe has also been designed to accommodate electric motors and batteries in the future if GM decides to move ahead in that direction. The company is expected to create strictly electric pickup trucks and SUVs in the future, but they are expected to be engineered around a dedicated architecture not related to the Tahoe.
What About Towing?
For drivers looking at the 2021 Tahoe in terms of towing capability, a new trailering package is designed to improve connecting and hauling a trailer. It will be easier to physically see the hitch as well as monitor tire pressures/temperatures. A blind zone alert will also be added to this system. For drivers, a detailed label on the door jamb will help to calculate load capacities. GM has not released the exact numbers in regards to towing capacities, but based on the burly prowess of previous Tahoe generations, we can expect it to be more than capable.