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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:

GM will likely build PHEV batteries in China soon

It's a big week for batteries. Friday, Tesla will hold a big event at its Gigafactory in Reno, NV. But even in Michigan, there are things happening on the electrified automotive front. This was proven when GM invited journalists to its Brownstown Battery Assembly Plant today, highlighting the six different battery packs it makes for nine vehicles around the world (plus a tenth, coming to Asia, that has not yet been announced). During our tour, we learned a few interesting tidbits that we thought readers would like to hear: The Cadillac CT6 plug-in hybrid launches in China this fall before coming to the US next year. GM builds the battery packs in Michigan and ships them to China for final assembly in the PHEV. For now, this is all fine for GM to qualify for China's incentives for building green cars in the country. But, as Bill Wallace, GM's director of global battery systems, told AutoblogGreen, this could change thanks to the country's 'Made in China 2025' plan. The situation is "evolving," he said, and it's a safe assumption that GM will need to build packs in China some day. For the CT6 PHEVs that will be sold in the US, the batteries will make a round trip, since GM will only build the plug-in version in China. As for the range of the CT6 PHEV, that hasn't been announced, but since China offers incentives for vehicles that get at least 50 kilometers (31 miles), that's a likely target (the US range (UPDATE: GM did announce an expected range for the CT6 PHEV in the US at the LA Auto Show last fall, saying it would "travel approximately 30 miles on a full electric charge"). The battery pack in the CT6 is also a clunky box-type thing, totally unlike the near-elegant T-shape used in the Volt. This despite the fact that the guts of the two packs are similar. Both have 192 li-ion cells and weigh almost the same, but GM tuned the CT6 pack for acceleration instead of range, the way it did with the Volt's pack. Still, the main reason the packs are different is because the CT6 is a rear-wheel drive vehicle, and the tunnel that the Volt's pack uses is occupied by the driveshaft. Despite the highly touted second-gen Chevy Volt going on sale last year, GM still has the capacity to build battery packs for the old, first-gen model. This is because the company is legally required to be able to provide replacement packs for warrantied vehicles (for up to 10 years), and the second-gen packs don't fit into the first-gen vehicles.

What are the odds an actual Cadillac EV looks anything like this?

The Cadillac EV concept sure looks neat. It's all-electric, too, which is even neater. Unfortunately, it's a concept car, and when it comes to concept cars with Cadillac badges on them, it's best not to get too excited. For instance, you might recall this exquisite piece of automotive art. It was called the Elmiraj. You might recall the production version became the bold face of a new Cadillac and inspired a renaissance for the brand. Jay-Z drives one. Oh wait, no he doesn't. It was never made, nor was anything like it made. This is the Cadillac Escala. It has certainly inspired design cues on production Cadillacs, most notably the just-revealed XT6. However, besides those cues, it's a pretty anonymous large crossover. Hardly anything as stunning as the Escala. Now, perhaps the CT5 will be a dead-ringer, but we wouldn't get our hopes up. Then there's this, the Ciel. Not to be confused with an Acura CL, it was 100 feet long, a convertible and purple. This was also not made. OK, we can see why. And finally, this is the Cadillac Sixteen. As the name suggests, it had 16 cylinders. That's a lot. The most you can get in a Cadillac today is half that many. Now, to be fair, most manufacturers produce concept cars that have zero chance of production. They are meant to serve as inspiration for future designs, showcase future technologies or just draw attention to the brand. The problem with the Cadillac concepts is that they're not that fanciful. Those aren't pod-like Jetsons cars up there. They aren't this nonsense. They look like modern interpretations of the exact sort of grandiose cars Cadillac used to make. The very cars that made Cadillac the "Cadillac of the World." You know, like this. I'm not talking about literal tail fins and pink paint, but that's a CADILLAC. It's confident. It's its own thing. It doesn't need to beat BMW around the Nurburgring to prove something to someone somewhere. The Elmiraj was also a CADILLAC. The XT6 literally wears a Cadillac badge, but it could be anything. By contrast, Lincoln is doing a much better job of tapping into the spirit of its grand past with the Navigator, Aviator and suicide-doored Continental. Nowhere is that better seen than in the cabins of the XT6 and Aviator. One is swank. The other is not. But back to where we started: that EV concept. You'll note that it doesn't actually have a name.