I do enjoy having the air suspension on my Ram 2500, however, I have come across several issues with it that concern me.
- When pulling a trailer loaded with rock, just shy of 14k total, 1.3k tongue weight, the truck acts fine. The trailer pulls well, handles well, and is well within the abilities of the truck. The issues start when unloading. The rock is unloaded from the back to the front, by hand, one shovel full at a time. Half way through unloading, the truck is moved forward. During this, the message Air Suspension Disabled Due to Payload message appears. The trailer unloading is continued until empty. The truck is moved to unhook the trailer, where it is still displaying the Air Suspension Disabled icon, even though nearly all the weight has been removed. At this point in time the trailer cannot be unhooked without running out of jack on the trailer. The rear of the truck is now sitting nearly 5 inches higher than when the trailer was loaded. The truck will not re-level, no combination of Lower Bed button pushes, or entering into Tire Jack Mode, Alignment Mode, or Transportation Mode have any effect. Restarting the truck does not do anything either. The only way for the truck to be reset and have the air suspension work normally is to drive and hit 14 mph or higher. This is both inconvenient and potentially dangerous depending on the condition of the load on the trailer. If the trailer is unloaded without the truck being woken up, this message does not appear.
- When this happens, and you do not drive over 14mph to reset the air suspension, cribbing must be used under the trailer jack to get the trailer off the truck. However, when the truck returns to normal after driving, the trailer is too high to be able to re-hitch. This create another set of hazards when trying to get the trailer back on the truck.
- There have been a number of times where the trailer must be unhitched half way through unloading something. This creates a hazardous situation, when the truck refuses to adjust/dump the air suspension to allow the normal unhitching of the trailer.
- There should be a way to reset\dump the air suspension when the load has been reduced/removed, besides driving at 14 mph or higher, since the air suspension isn’t intelligent enough to realize this on its own.