Bought my 2018 Limited in Jan 2018, so less than a year old. Hate to say it but I’m starting to have air suspension issues this month. The left front is sitting lower in the mornings now and on three occasions when the temps have fallen below 35 overnight I’ve received the dreaded “immediate service required” message for the air suspension after startup. I can hear and feel a vibration when the air suspension system tries to level the front and then I get the immediate service required message and the entire front on both sides actually drops to the bump stops. I let the truck warm up for several minutes and then cycle the engine and then the suspension comes up, but I definitely foresee problems in my future that will require a dealer visit. It’s worth noting this issue has only occurred when it gets near freezing temps and when the truck sits overnight for several hours. During the day while at work when it’s only sitting a few hours at a time in between errands, I have no issues, even if it’s just as cold during the daylight hours.
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