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530,000 Hondas, Acuras under expanded NHTSA investigation for steering problem

Earlier this year, the National Highway Traffic Safety Administration opened an investigation into the 2022 and 2023 Honda Civic. The agency had received 145 complaints from owners stating that the car suddenly exhibited “sticky steering” and increased steering effort. WeÂ’re now learning that the investigation is expanding to include hundreds of thousands more cars. The original probe included around 238,000 Civics, but the NHTSAÂ’s latest report, issued Friday, noted that the investigation is expanding to include more than 530,000 Hondas and Acura vehicles. The 2022 and 2023 Honda Civic, 2023 Honda CR-V, and 2023 Acura Integra are affected. A drastic increase in complaints drove the expansion, as the NHTSA said it had received 1,300 reports and was aware of at least 14 crashes related to the problem. An alarming 11 of those crashes involved a roadway departure due to loss of steering control. Two of them came after the driver allegedly overcorrected, and there are three known injuries from the crashes. NHTSAÂ’s report found that the problem happened primarily in the winter months and after the car had been driven in a straight line for an extended period to warm up the vehicle and gear. Though alarming, itÂ’s worth noting that this investigation has not yet reached the recall stage. Honda acknowledged the problem, noting that it was a manufacturing issue for the steering gear unit. The manufacturing process created conditions that could cause greater internal stress, which can wear and deform the gears inside the steering component. The NHTSA also found that the factory did not guarantee consistent lubrication throughout the gear, which could be the cause of the temporary increase in steering effort. The automaker directed its dealers to replace the electronic power steering gearbox to correct a manufacturing defect, but NHTSA will continue its process, moving to an engineering analysis. If that study finds a defect, it could request a recall. Government/Legal Acura Honda Safety

A smoother operator | 2017 Acura MDX Sport Hybrid First Drive

There's a lot to unpack when trying to understand the 2017 Acura MDX Sport Hybrid. Acura is billing it as a three-row crossover infused with NSX technology via a sport-oriented hybrid drivetrain. So it's a hybrid crossover, sure. But it doesn't comport itself like a traditional crossover, nor is it a conventional hybrid. What it is, underneath, is an intentionally subtle blend of impressive technologies doing their best to appear transparent – and it's too subtle, I fear, to be appreciated by those who'd like it the most. This is a lot of foreshadowing, but if you're not familiar with the MDX Sport Hybrid's powertrain, let's fill you in. The MDX Sport Hybrid uses the same basic system as the 2014 RLX Sport Hybrid, with some newer NSX battery tech sprinkled in, packaged neatly into the refreshed third-generation MDX platform. The system improves handling and efficiency – but more important, it smoothes out the harshness of shifts and engine stop-starts. We do need to examine the system in some detail to understand how all this affects the MDX as a whole, so let's go toe to tail. Up front is a transversely-mounted 3.0-liter V6 making 257 horsepower and 218 pound-feet of torque, as well as featuring i-VTEC and cylinder deactivation. It's slightly smaller than the 3.5-liter V6 found in the conventional MDX and many other Honda and Acura products. Attached alongside is a Honda-produced 7-speed dual-clutch transmission that has a 47 hp, 109 lb-ft electric motor-generator stuffed inside. Amidships are the battery pack and the electronics to control it, and stretching aft from there are large cables feeding power to a pair of electric motors that reside in single housing, one for each wheel. Together, they produce electron witchcraft and torque-delivery wizardry – and add 72 hp and 108 lb-ft of torque to the mix. The total system output is 321 hp and 289 lb-ft of torque – a gain of 31 hp and 22 lb-ft over the conventional MDX SH-AWD. Beyond the raw numbers, there's the remarkable subjective benefit of the Sport Hybrid's drivetrain. Engine start-stop events are quiet and smooth, nearly imperceptible when under way – in stark contrast to the too-perceptible shudder of competing engines kicking on. The electric motors (mainly the one residing in the transmission) add in power to make up for the lull during a shift, making shifts up or down seamless, as well as providing regenerative capacity.

New TLX A-Spec leads Acura's three-car Pike's Peak attack

Once again, Acura is headed to Pikes Peak for the hillclimb on June 25 with a small group of machines. This year the focus is on the TLX, with two vehicles bearing the sedan's name and shape. The two cars are very different, though, and will compete in two different classes. The first is the TLX A-Spec. This started life as a production TLX, but the 3.5-liter V6 has been reworked with pistons, rods, camshafts, and a valvetrain from Acura's TLX GT race car. The engine also has a turbocharger, which helps the V6 make an impressive 500 horsepower. All those ponies go to the front wheels through a limited-slip differential. In addition to the powertrain upgrades, the interior has been gutted, and a big wing and front splitter fitted. The A-Spec will compete in the Pikes Peak exhibition class. The other TLX is a TLX GT. This is the type of car from which the A-Spec borrows engine components, but not the TLX GT's twin-turbocharger system. TLX GTs have already been competing in motorsports, specifically in the Pirelli World Challenge. Acura did make some changes to this car for Pikes Peak, though. The suspension and engine computer have been tweaked, gear ratios shortened, and additional aerodynamic bits added for more downforce. The TLX GT will compete in the open class. Despite the focus on the TLX, Acura is still bringing an NSX to the hill climb. This car is similar to the one that raced in the Time Attack 1 class last year, but has some changes for the Time Attack 2 class. Most notable of these changes are the massive rear wing and front splitter. According to Acura, these aerodynamic aids were based on those used for the NSX GT3 race car. Acura also reduced weight, changed the tuning on the engine computer, and fitted sticky R-compound tires. Related Video: Featured Gallery Acura Pikes Peak race cars View 9 Photos Image Credit: Acura Motorsports Acura Coupe Racing Vehicles Sedan acura tlx acura tlx gt