2024 Gmc Yukon At4 on 2040-cars

Auto blog

New GMC feature reminds drivers to check for kids in hot cars

We see the stories every summer: Dozens of children die from heat stroke every year after being left inside hot cars. GMC has introduced a feature in the 2017 Acadia in an effort to help curb the problem. Simply called Rear Seat Reminder, it alerts the driver if the vehicle suspects someone might have been accidentally left behind. GMC's alert will trigger under certain circumstances. Five chimes will sound and a warning will display if the rear doors are opened and closed within 10 minutes of the vehicle starting or if those doors are opened while the vehicle is running. The system does not sense items or people in the rear seat like the front passenger seat would to trigger the airbag. Warnings will be displayed regardless of interior or exterior temperature; while the summer months are the deadliest, leave-behind deaths occasionally occur during cold weather. Drivers should be aware that temperatures in vehicles can quickly rise to dangerous levels, even if the ambient temperature seems cool and comfortable. View 23 Photos Unfortunately, a large percentage of children are intentionally left in cars. A negligent caretaker, whether it be a parent, grandparent, or babysitter, can leave a child behind while they go to work or run an errand, not expecting any problems. Some children unintentionally trap themselves in cars while playing in the cabin or trunk. The Acadia's system is unlikely to prevent these scenarios. While we believe that GMC should be commended for making an effort to put an end to these tragedies, we're not certain how effective the system might be until driver education improves. It's also possible drivers will come submit to warning fatigue and begin to ignore the messages. That said, if this software-based solution prevents just one death, it was worth the effort. Related Video: Image Credit: GMC GMC Safety Crossover gmc acadia

GM Ultium tech can scavenge heat from everywhere, even you

GM likes to give us tidbits about its Ultium platform from time to time, and today it’s telling us about the platformÂ’s ability to capture waste heat from the propulsion system. In addition to capturing from the propulsion system, it can also capture humidity from both inside and outside the vehicle and even from passengersÂ’ body heat. Yes, you, your family and/or your friends are a usable heat source as far as GM EVs are concerned. It then deploys the heat in an advantageous way. If at this point, youÂ’re screaming, "Heat pump!" youÂ’d be right. WeÂ’re talking about an elaborate heat pump system that GM is using for its Ultium-based vehicles. Every Ultium-based GM vehicle gets this system that is covered by 11 patents and four publications. The waste heat it collects is used in a number of ways, but its primary use is to heat the cabin quickly and efficiently. GM claims it can heat the cabin of its Ultium-based vehicles quicker than vehicles with traditional internal combustion engines. Plus, when put to use, GM claims that using the heat pump provides its EVs with up to 10% more range than theyÂ’d have without. Beyond heating the cabin, the heat pump is capable of putting waste heat to use by preheating the battery prior to charging so that you can charge quicker. The system can even cool the propulsion system in preparation for Watts to Freedom (WTF) launch control starts. GM says this was vital in helping the Hummer EV achieve its bonkers 0-60 mph time of about 3 seconds. “Having a ground-up EV architecture gives us the freedom to build in standard features like UltiumÂ’s energy recovery capabilities,” said Doug Parks, GM executive VP of global product development, purchasing and supply chain. “This helps us squeeze more efficiency, performance and overall customer benefit out of our EVs.” GM says itÂ’s been developing heat pump technology since the EV1 and its heat pump. This is the modern evolution of that technology, and GM says itÂ’s going to be implemented in every Ultium-based vehicle as a standard feature. Related video: Green Cadillac Chevrolet GM GMC Technology Electric Future Vehicles

GMC moved the headlights down on the 2024 Sierra EV to prevent glare

There are a lot of things that are different between the 2024 GMC Sierra EV’s design and the gasoline Sierra pickup, but one we noticed right away was the headlight placement. On GMÂ’s full-size gasoline trucks, the headlights are about as far up the front fascia as they can be. In the Sierra EV, theyÂ’re positioned significantly further down and into the lower bumper below the grille. Why are we highlighting this particular aspect of the design? Well, unless you only ever drive massive, high-riding trucks, youÂ’re probably very accustomed to being frequently blinded by them on the road these days. In describing the Sierra EVÂ’s headlight placement, designers told us they intentionally put the lights further down to improve matters. We pulled Phil Kucera, a GMC design manager, aside to ask him about the change. “It tends to be a better spot where itÂ’s not glaring in other peopleÂ’s eyes, right, the lower you get,” Kucera says. Beyond blinding others, putting the headlights lower on the face of the truck improves headlight performance for the driver, too. “Typically the lower the better, because thatÂ’s where theyÂ’re going to be on the road, so thereÂ’s less to reflect off of in fog or rain,” Kucera explained. “If you get them up at a certain height, theyÂ’re going to be reflecting certain things like snow, rain or things like that in your eyes.” 2024 GMC Sierra EV Denali Edition 1 View 13 Photos Of course, youÂ’ll notice on the Sierra EV that the daytime running lights (DRLs) are still big and bold in the upper part of the front end. These lights are around for decor, though, and act as pieces of design rather than a functional way to see at night. In other words, theyÂ’re lights, but theyÂ’re not going to dazzle oncoming traffic or cause glare for the driver like a headlight pointed down the road will.  Moving those lights further down in the front should hopefully be a net positive for other drivers coming across the Sierra EV and for drivers of the truck themselves. How the lights are aimed plays just as much a role in how other drivers perceive oncoming lights, though, so weÂ’ll have to wait and see the real-world performance on this one.  WeÂ’ll also note that moving the actual headlights further down the front end doesnÂ’t take anything away from the design of the Sierra EV. It still features a strong, upright stance that the world is accustomed to seeing from new trucks these days. ItÂ’s no surprise, but GM agrees.