We're checking out what happens when a modern GMC Sierra 1500 Elevation is upgraded with a set of LED taillights pulled from the rear end of the GMC Sierra HD.
A GMC Sierra EV owner's first tow saw his 355-mile range instantly slashed to 205 miles when he engaged Trailer Mode.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback