The days of changing your engine oil every 3,000 miles are long gone thanks to most cars having automatic oil monitoring systems, but about 800,000 General Motors vehicles apparently have incorrect monitoring software that is leading to premature engine component wear. According to Autoweek, certain 2010-2012 Buick LaCrosse, Regal, Chevrolet Equinox and GMC Terrain models equipped with 2.4-liter four-cylinder engines could be going too long in between oil changes resulting in a higher-than-normal number of warranty claims for the engine's balance chain. The balance chain links the balance shaft to the crankshaft, and a worn one can produce higher noise levels.

As a fix, GM dealers will be reprogramming the software for the monitors in an effort to reduce the interval between oil changes, which varies based on driving habits and conditions. Through February 2015, the software update will be done at no cost to vehicle owners, but since this is not a recall, after that point, it will be up to the discretion of dealers as to whether or not they will charge for the service. What isn't immediately clear is whether GM plans on giving assistance to out-of-warranty customers who are experiencing engine issues from the worn chain.


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  • 65 Comments
      lazybeans
      • 1 Year Ago
      I get my non-synthetic oil changed every 5,000. I don't care if my car computer tells me there's 60% life left, hell no.
      JTS
      • 1 Year Ago
      GM needs to open this up to all Acadia, Traverse, and Enclave owners as well. Just do some searches on timing chain failures on these cars and you\'ll likely find many owners upset over this. I personally used to own an \'07 Acadia and in Aug 2010 with only 28,xxx on the odometer I got a CE light for a crankshatft position sensor. Thanks to online forums I knew what it was and got it into the dealer. They had to pull the engine from the vehicle to replace the stretched timing chain. Thank goodness it was under warranty, but unbelievable. A friend of mine has a 2010 Traverse and when the dealer reprogrammed his oil life monitor it told him to get a new oil change less than 1000 miles from the last one!!!
      wrestleprocbt
      • 1 Year Ago
      Hey gov't motors, why also does my v8 equipped 9-7x require oil to be added about every 1000 miles? I think this engine is a problem you should deal with. Dealer told me thats common for gm v8's to use a lot of oil. They have said this both times they rebuilt the engine. Hey, it's knocking again and my warrenty expired 4 months ago. Quality control? Maybe you should start! Oh wait, but this is new gm not old gm so even though its the same employees, mostly same management and ideas, except for your buddy in the whitehouse protecting you, this is a whole new company right? Crap!
      IBx27
      • 1 Year Ago
      I'd never trust a computer to tell me when to change my oil, and I'd never trust 10,000 mile or 7,500 mile intervals either.
        • 1 Year Ago
        @IBx27
        This like the belief that higher octane = better. It doesn't! You guys have really delusional and antiquated thinking. Vehicles with oil change intervals over 5,000 miles have been on our roads for years with out issues. If you have rough performance from your engine, you're just imagining it... or something else is wrong with your engine. If it were that bad to let oil go for so long, thousands, if not millions of people would be complaining about engine problems. I have BMW running on synthetic oil with nearly 100k miles on the odometer. Rarely do I change the oil less than the 15,000 miles that's recommended by BMW. Never a problem with the car....Well, at least with the engine. The rest of the car is a different story.
        Dave Ron
        • 1 Year Ago
        @IBx27
        then you are WASTING your money. The 3K propaganda worked . . . .
      seabetterright
      • 1 Year Ago
      The damage is done!! Geez, nearly a million GM vehicles with these engines. I'll never be buying one of these vehicles used.
      • 1 Year Ago
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      rtttack
      • 1 Year Ago
      GM should PAY for the oil changes. If the engines need them more often, that isn't what you sold the customer.
      m3laszlo
      • 1 Year Ago
      By law; GM must pay for those extra oil changes. I forgot the name of the law that requires GM to pay for additional required service undisclosed at the time of sale. And their new car contracts can't have fine print saying "oops sorry about the more frequent oil changes, but GM is not responsible for additional service we didn't know it needed" Not only is GM not paying for the oil changes; they won't even pay for the oil change reminder update after 22 months. Good news for recovered stolen vehicles.
      darkness
      • 1 Year Ago
      My 2010 Equinox clattered so bad and used so much oil we traded it in and have never looked back, the dealers were never willing to findout the problem just added more oil, the thing would stop running and the timing belt had to be changed before 40,000 miles, I smell a lawsuit.
        • 1 Year Ago
        @darkness
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          • 1 Year Ago
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      Gary A Doss
      • 1 Year Ago
      This somehow rings familiar with more than a few GM engines. Even modern oil can't compensate for poor quality engine design and materials. Recall the Corvette debacle when new cars, outside in winter, suffered seized cams before they could be loaded on the truck. It took that to bring GM into the modern age of synthetic oils. GM is a failed idea of what automotive design and manufacturing is all about. Unfit for any need.
      Scooter
      • 1 Year Ago
      Its ok, Old Ladies dont drive that much anyways.
      mbukukanyau
      • 1 Year Ago
      Trying to boost dealer revenues I see
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