2003 Buick Lesabre Custom Sedan 4-door 3.8l on 2040-cars

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GM recalls nearly 24,000 Buick Regals for brake issue

Buick is recalling 2018-2020 model year Regals to address a software defect in the braking system that would result in a loss of power assist under certain circumstances, making the brakes difficult to operate and potentially leading to a crash. In total, 23,734 models are covered by the campaign. "In the event of a partial or full loss of vacuum-brake assist, the vehicle’s hydraulic-brake boost is designed to supply supplemental pressure to the vehicleÂ’s brake system. A software error in the electronic brake control module (EBCM) may fail to activate the hydraulic-brake boost under these conditions," GM said in its defect report to NHTSA. "If the vehicleÂ’s vacuum-power brake assist partially or fully fails, braking events may require additional stopping distance, depending on the brake pedal force applied by the driver. Increased stopping distances could increase the risk of a crash." GM says that a warning indicator will illuminate in the dash if the system completely fails, and drivers may notice an increase in brake pedal resistance. Failure will not render the brakes inoperable, but they will require more force to operate. GM has begun notifying dealers of the defect; owners should be notified starting in August.   Related video: Recalls Buick GM Safety Hatchback Wagon Sedan

Junkyard Gem: 2006 Buick Lucerne CXL

When The General's Buick Division axed the LeSabre and Park Avenue names in 2005 (after 46 and 30 years, respectively, though the Park Avenue returned a few years later in China), the replacement top-of-the-line Buick sedan became the new Lucerne. It wasn't the Buick with the biggest price tag that year— those honors went to the Terraza minivan and Rainier SUV— but it became the flag-bearer for a bloodline of cushy, prestigious Buick sedans that stretched all the way back to the early days of the American auto industry. Lucerne sales for the 2006 and 2007 model years went pretty well, and now enough time has passed that some of these cars are showing up in the self-service car boneyards I frequent. Here's a first-year example with the optional Northstar V8 engine, found in a Northern California yard last summer. Plenty of American cars have been named after cities in Italy, France, and Spain, but the Lucerne is the only one I can think of that bears the name of a Swiss city (to be fair, the entire Chevrolet Division is named after a Swiss man, so Switzerland didn't really get shortchanged by The General in the naming department). CXL was the Lucerne's mid-grade trim level, sandwiched between the CX and CSX. The high-zoot Lucerne CSX got the 4.6-liter Northstar as standard equipment, but this quad-cam V8 and its 279 horses cost extra on the CXL. The base engine for the CX and CXL was the good old 3.8-liter pushrod Buick V6, rated at 197 horsepower. No US-market 2006 Buick could be purchased new with a manual transmission; this car has a four-speed automatic. In a Buick tradition stretching back to the late 1940s, this car boasts flashy "Ventiports" on the fenders. In past years, the number of ports on each side designated the car's intended swank level; starting with the Lucerne, they indicated the number of engine cylinders. So, when you're crawling around your local Ewe Pullet and looking for Northstars, seek out the Lucernes with the four-hole Ventiports. "Leather-appointed" power bucket seats and "wood-toned" trim were standard on the CXL, as well as an MP3-capable CD player with six speakers. By 2006, most American vehicle shoppers seeking something big and luxurious chose trucks and truck-like machines, but the market still supported quite a few sedan models such as the Lucerne. Most US-market GM vehicles got these little square "Mark of Excellence" fender badges during the late 2000s.

GM reportedly developing 2.5-liter turbo four-cylinder

General Motors is allocating a massive amount of resources to developing electric technology, but it's not forgetting about the gasoline-powered cars that make up the bulk of its sales. It's reportedly designing a new 2.5-liter turbocharged four-cylinder engine based on its 2.7. Citing "sources familiar with the matter," enthusiast website GM Authority wrote that the 2.5-liter four is "in [the] final stages of development," meaning it should be announced sooner rather than later (assuming the report is accurate). Technical details are few and far between as of writing. The publication learned that the 2.5 will be part of the Cylinder Set Strategy (CSS) family of engines and that it will be mechanically related to the 2.7-liter currently found in the Chevrolet Silverado 1500, among several other models. It will feature dual overhead camshafts. It's too early to tell which models the 2.5-liter four-cylinder will end up in, or how much power it will generate. The output will likely depend on the application. For context, the 2.7 delivers 310 horsepower at 5,600 rpm and 348 pound-feet of torque between 1,500 and 4,000 rpm in the Silverado. In the smaller Colorado, it provides anywhere between 237 and 310 horsepower depending on the trim level selected. While this is pure speculation, our crystal ball tells us the engine will end up powering crossovers. It's an easy deduction to make. We can't imagine it will be offered in the Silverado, and seeing it in the Colorado is unlikely because its entry-level engine develops 237 horsepower; there's likely not much of a market for a midsize truck with 200 or so horsepower. Putting it in the Corvette wouldn't make sense and the Camaro has nearly reached the end of its life cycle without a successor planned. This leaves us with Chevrolet's range of crossovers, like the Equinox, as well as their GMC-, Buick-, and Cadillac-branded counterparts. We're not discounting the possibility that the cars set to receive the 2.5 haven't been unveiled, but those are likely crossovers, too; the odds of seeing another big Chevy sedan are very, very low. General Motors hasn't commented on the report, and it hasn't publicly announced plans to expand its CSS family of engines. If the report is accurate, we should learn more about the new turbocharged, 2.5-liter four-cylinder engine in the not-too-distant future. Featured Gallery 2022 Chevrolet Equinox RS View 56 Photos Buick Chevrolet GM GMC