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2014 Acura RLX gets trick hybrid all-wheel drive system for LA

Acura has endured a year of mixed reviews and middling sales for its new RLX flagship. Meanwhile, the Japanese automaker has been readying what may be the very best version of the car for its debut. Now the wait is almost over, as Acura will show its 2014 RLX Sport Hybrid SH-AWD at this year's LA Auto Show.
When it comes to dealerships in the spring of 2014, the RLX Hybrid will be the most powerful production car Acura has ever sold. The combination of a 3.5-liter V6 and three electric motors - a 35-kilowatt motor pushing torque to the front wheels and two 27-kW units feeding the rears - creates a total system output of 377 horsepower.
Those rear-end electric motors do more than just add power, they also drive the rear wheels without a traditional rear drive shaft and differential. This newest iteration of the Super Handling-All Wheel Drive calls upon the two rear motors to both drive and brake the rear wheels, vectoring torque in cornering situations for additional grip. All three electric motors make use of regenerative braking to feed electricity back into the system's 260-volt lithium-ion battery pack.

2021 Acura TLX A-Spec Long-Term Update | Infotainment system hits a pothole

The first few thousand miles of motoring in our 2021 Acura TLX A-Spec long-term test car were problem-free, but that changed after we took it on a spirited drive through the winding hills of southern Indiana. You can read about how it handled a full day of thrashing here, but this story will focus on the dead infotainment system previewed in the headline. About halfway through the twisty route, every sizable pothole or big bump in the road would cause the infotainment system to black out. A message would appear declaring “MOST NET LOSS,” and it would quickly dip to black after that. The next big pothole would cause it to flicker back on, but it never remained on for any long periods of time after this. In addition to the screen loss, the speakers would make some rather disturbing crackling noises. This continued throughout the day and for several days beyond that. If the roads I was driving on were flat or devoid of major problems, the infotainment system would generally be fine. It took a major jostling of the carÂ’s bones to cause it to act up, but Michigan provided enough of those to make the problem exceedingly annoying in a hurry. So, to the dealership it went. 2021 Acura TLX A-Spec View 51 Photos After the local dealer looked it over, they said there was a TSB out for this issue, and that theyÂ’ve seen it pop up on other RDXs and TLXs already. Turns out, there are a number of wire connectors between the infotainment system and wiring harness that are causing the problems and coming loose. The fix? Newly designed connectors from Acura, plus the wiring harness is ever so slightly freed up to allow for a bit of movement from violent impacts. Doing this (plus using the stronger new connectors) should ensure that the stress on these connectors is never so great as to cause issues again.  The job was completed under warranty and took a full day from diagnosis to the return of the car. WeÂ’ve put several hundred miles on the car since the fix, and theyÂ’ve been completely trouble-free — it sure was nice to listen to AcuraÂ’s excellent ELS audio system again. That said, this issue is one weÂ’ll follow closely to see if AcuraÂ’s fix truly is a long-term solution. WeÂ’ll have a deeper dive on how AcuraÂ’s TouchPad infotainment system works (now that itÂ’s actually working again) soon, so watch out for that update in the near future. You will be able to find all other posts on our Long-Term 2021 Acura TLX page.  Related:

2021 Acura TLX Long-Term Update | A surprise upgrade

That may look a lot like our long-term 2021 Acura TLX A-Spec, but in this case, your eyes deceive you. Say hello to our not-so-long-term TLX Type S, which is subbing in for the A-Spec while the latter undergoes a little exploratory surgery to diagnose what appears to be an escalating electrical issue.  Yes, our handsome blue steed is currently lame. What first manifested as odd transmission behavior and the occasional infotainment reboot escalated to the vehicular equivalent of a grand mal seizure on a rainy Michigan day, resulting in a flat-bed ride to the dealership and fast-tracking our plans to get the TLX in for a diagnosis. So, for the foreseeable future, I'm enjoying an extra two cylinders and nearly 100 more horsepower. All upsides, right? To a degree. While the extra power is certainly welcome, it comes at a cost – 200 pounds, give or take. That extra weight erodes some of the qualities I appreciate most about our long-term A-Spec. Acura really nailed the front-end feel of the TLX with the A-Spec, and while the Type S still feels pretty good, the added mass over the nose is inescapable. And while the 20" Type S wheels look fantastic, they make the already firmer suspension feel almost unnecessarily crashy. The 19s on the A-Spec are the sweet spot (picking up on my thesis?) but even I must admit the Type S wheels look significantly better.  On paper, this 3.5-liter V6 matches up reasonably well with the rest of the premium turbo-sixes on the market, but in the real world, it's a bit uninspiring, and not just in the too-competent-for-its-own-good way BMW's mainstream I6s tend to be. There's plenty of power and torque, but I've yet to experience one of those "ah-ha!" moments where the whole package suddenly makes sense.  In fact, I spend more time pining for the lighter, nimbler A-Spec than I do yearning for the open space I'd need to let the V6 run free. In this, I think I'm rowing against the Autoblog current; others' reviews of Acura's muscular six-cylinder have been far more enthusiastic. Be that as it may, I appreciate the way the A-Spec drives like a smaller car than it is. Related video: 2021 Acura TLX 2.0-liter turbo-four soundtrack | Autoblog