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GM recalls select Tahoes, Yukons, Escalades for rear driveshaft issue

GM is recalling a number of its full-size SUVs due to an issue with the rear driveshaft assembly that could ultimately result in driveshaft failure. The actual number of total vehicles involved in the recall is small at just 1,789, but it’s spread out across the entire 2021 model year full-size GM vehicle lineup. That means a small number of every model is being recalled, including the Chevrolet Tahoe, Suburban, GMC Yukon, Yukon XL and the Cadillac Escalade and Escalade ESV. GM traced the issue back to certain driveshaft assemblies with ball bearings that were not properly heat treated. If theyÂ’re not properly heat treated, GM says that the balls may deform over time, causing noise and vibration. Continue to drive in this condition, and GM says the affected joint in the driveshaft assembly could seize, causing loss of drive power. However, the problem wonÂ’t present itself all at once, as GM says there will be a gradual increase of noises and vibrations before total failure. For those few owners with affected vehicles, GM says that it will replace the left and right rear driveshaft assemblies with properly-built units. Per usual with recalls, this will be done at your local dealership at no cost to the owner. If you have one of the recalled SUVs, expect to be notified mid-March. Related video:

Cadillac Elmiraj Concept slinks in Leno's Garage

Jay Leno's Garage has moved to Pebble Beach for the week. This time around, the affable comedian is taking a look at the Cadillac Elmiraj Concept that debuted during the Monterey car week, and is talking to General Motors vice president of global design, Ed Welburn.
There's plenty of reminiscing about what concept cars were like when these two were kids, before a fairly deep dive into the striking Elmiraj Concept itself. Welburn shares a few anecdotes about the design process behind the two-door concept, including how his designers changed his mind on the grille design.
After bringing up the Cimarron, Leno makes a solid point that the Elmiraj would be a solid production car that could even spawn a four-door variant. We couldn't agree more. Take a look below for the full video from Jay Leno's Garage.

Cadillac confirms 'Blackwing' name, manual gearboxes for pumped-up CT4-V, CT5-V

Cadillac officially confirmed Tuesday that the high-output variants of its new CT4-V and CT5-V sedans will be dubbed "Blackwing," sharing a nameplate with GM's stillborn twin-turbocharged V8. As an added bonus, company representatives said for certain that both of Cadillac's new super-sedans will be offered with a manual transmission, confirming long-standing rumors to that effect.  "The Blackwing name has come to represent the very best of Cadillac performance engineering, craftsmanship and technology," said Cadillac chief engineer Brandon Vivian. "The new CT4-V Blackwing and CT5-V Blackwing build on the brand’s respected legacy of ultimate-performance driving experiences and elevate them even further." Cadillac says the two Blackwing sedans, which are successors to the critically acclaimed ATS-V and CTS-V, will represent "the apex of Cadillac performance and driver engagement." The company also remained mum on just what to expect in terms of capability, teasing only the fact that both the CT4-V and CT5-V Blackwing posted quicker lap times in testing at Virginia International Raceway earlier this year than their predecessors did.   Rumors have pointed to the CT5-V Blackwing making use of the company's supercharged 6.2-liter V8, which also powered its predecessor. The 6.2 shares its architecture with the company's flagship, naturally aspirated V8, making it an economical choice for powering performance cars. The smaller CT4-V is likely to be motivated by a turbocharged 6-cylinder. They will also be available in limited numbers, though Cadillac's announcement did not elaborate on just how many (or few, as the case may be) will eventually be built, or how many model years to expect. The CT6-V, which carries the 4.2-liter V8 that shares the "Blackwing" name, saw only limited production before being axed.  The V8 itself may find a new home down the road, but for the time being, it's toast.  Cadillac assured us that more information on the new CT4-V and CT5-V Blackwing will be come along soon enough. For now, at least we know what they're going to be called.  Related Video: