What is the problem with these body-on-frame behemoths? The short answer is that a seat belt buckle attachment bolt may not have been tightened to the correct specification by the seat supplier. More specifically, either the left or right front seat belt buckle attachment bolts. In case of a loose bolt, owners may notice a rattle coming from the area where the seat belt buckle is fastened to the seat.
The supplier's name is Lear Corporation, a Michigan-based colossus that employs in the ballpark of 175,000 souls. Traded as LEA, the corporation is listed in the S&P 400 and Russell 1000 stock market indexes. General Motors became aware of the aforementioned concern on August 4 via a report filed by a GM employee through SUFS. Speak Up for Safety is a program created by GM in 2014, bang in the middle of the notorious ignition switch saga.
Said employee (a seat engineer) was notified by the Lear Corporation over the discovery of a loose front seat belt buckle on a seat intended for a 2024 model year GMC Hummer EV. Opened on September 22, the subsequent investigation determined that Lear Corporation employees didn't follow the assembly instructions correctly. Both General Motors and the supplier inspected 754 seats, discovering two with improperly torqued belt buckle attachment bolts.
Owners will be notified about this recall no later than January 8 via first-class mail. Suspect front seat belt buckle assemblies number 10 versions, with part numbers ranging from 84830759 to 87865964 in the Detroit-based automaker's parts system. General Motors estimates that one percent of the 115-strong vehicle population features loose bolts.
Related to the BEV3 platform for unibodies, the BT1 skateboard-type platform underpins both the Silverado EV and the Hummer EV. Developed specifically for full-size trucks and large SUVs, the battery-electric vehicle platform is also shared with the GMC Sierra EV and the Cadillac Escalade IQ.
At press time, the Silverado EV is a fleet-only vehicle with a sticker price of nearly $80K for the work-oriented 4WT. The GMC division wants at least $104,650 for the tri-motor Hummer EV 3X in SUV flavor, a starting price that carries over to the pickup truck. Both are good for up to 1,000 horsepower in the Watts To Freedom high-performance mode.