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Old 03-11-2011, 02:29 PM   #1
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Sunrider a no-go on the highway?

I lowered my sunrider today because I was too lazy to take the whole top off. Getting on the highway, I was going about 60 mph on a windy day and all of a sudden I feel something hit the back of my head. It was the canvas that the wind had filled up with air (it unfolded from the 'W' shape). I pulled over at the next exit, pulled the canvas back up in a 'W' shape, strapped the arms down, and went back on the highway. Two minutes later it did it again.

I put my sunrider up the way the instructional video says and my dealer taught me the first day. Fold the canvas in a 'W' shape and strap the arms down with the velcro. SO I know I'm not doing anything wrong.

Whats up with this?

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Old 03-11-2011, 02:38 PM   #2
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Dumb question, but did you take your rear window out? You should if you'll be doing in excess of 40 mph.

Otherwise, I'm not quite sure I get what happened. When I fold back the sunrider on my 4 door, I pull all of the fabric out as much as possible so as to not interfere with the folding rails. This puts the fabric way too far back over my roof to ever hit the back of my head. No problem on the highway.

So I guess what I'm saying is I don't quite understand how fabric got to the back of your head without something being wrong. Can you maybe post some pics of how the fabric got into the cabin, etc.?

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Old 03-11-2011, 02:53 PM   #3
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Dumb question, but did you take your rear window out? You should if you'll be doing in excess of 40 mph.

Otherwise, I'm not quite sure I get what happened. When I fold back the sunrider on my 4 door, I pull all of the fabric out as much as possible so as to not interfere with the folding rails. This puts the fabric way too far back over my roof to ever hit the back of my head. No problem on the highway.

So I guess what I'm saying is I don't quite understand how fabric got to the back of your head without something being wrong. Can you maybe post some pics of how the fabric got into the cabin, etc.?
I pull the fabric back also, but the wind pulled it back in so it kind of just drooped over the front seats and filled up with air. Im in a 2 door.

I also didn't know the back window thing. What are the details? Nobody explained this to me at all... Is it also the same if I just have the windows opened?
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Old 03-11-2011, 02:59 PM   #4
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I pull the fabric back also, but the wind pulled it back in so it kind of just drooped over the front seats and filled up with air.

I also didn't know the back window thing. What are the details? Nobody explained this to me at all... Is it also the same if I just have the windows opened?
That might be the problem--some sort of wind blow back.

My 2010 owners manual says that "If you are going to be driving faster than 40 mph (64 km/h) with the Sunrider feature open, it is recommended that you remove the rear window of the vehicle." The rear of your soft top acts like a parachute if your rear window is in while the sunrider is back, especially at high speeds.

There aren't any details really, you just unzip it. There's a bar that attaches above your tailgate that pops out. But that's it. The whole thing just comes out.

Not everyone bothers to fully remove it though. I prefer just to unzip the sides, roll it up, and loop it into the elastic loops that came with the Jeep. Others unzip it but leave the bar in so that they can just fold down the window into the rear.

Opening the windows on your 2 door won't have the same venting effect as removing the big parachute that is your rear window.
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Old 03-11-2011, 03:15 PM   #5
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At lower speeds rolling the back window up is fine. If you are going to be traveling at highway speeds I do not recommend it. The constant motion of the window will cause deep abrasions in the plastic. Ask me how I know.
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Old 03-11-2011, 03:23 PM   #6
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I use a simple bungee to hold the sunrider in place with or without the rear window...doesn't go anywhere
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Old 03-11-2011, 03:34 PM   #7
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With the rear window in place, and the sunrider open, you have a big air scoop...the air coming in through the sunrider has no way to exit, your mpg will suffer too. I just unzip the rear curtain and let it lay in the back, leaving the tailgate bar in place....enjoy!!!
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Old 03-11-2011, 03:40 PM   #8
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With the rear window in place, and the sunrider open, you have a big air scoop...the air coming in through the sunrider has no way to exit, your mpg will suffer too. I just unzip the rear curtain and let it lay in the back, leaving the tailgate bar in place....enjoy!!!
So you leave it connected to the tailgate bar and just tuck it in the trunk? It doesn't fly out or swing around?
Seems like I'd like this method the most
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Old 03-11-2011, 03:48 PM   #9
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I never have a problem with the windows being on when my sun rider is open. I usually open my front windows though, so that probably serves the same purpose.
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Old 03-11-2011, 03:50 PM   #10
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So you leave it connected to the tailgate bar and just tuck it in the trunk? It doesn't fly out or swing around?
Seems like I'd like this method the most
Not at all, I do keep a micro fiber cloth back there to keep the window from rubbing on anything that may be stored back there though.(tool bag, etc.)
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Old 03-11-2011, 03:58 PM   #11
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I never have a problem with the windows being on when my sun rider is open. I usually open my front windows though, so that probably serves the same purpose.
That may depend on a lot of little things..^^ I did that ONCE, and going down the road it felt like I was pushing against a wall..now I always unzip the rear curtain.
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Old 03-11-2011, 04:36 PM   #12
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Originally Posted by MTH
Dumb question, but did you take your rear window out? You should if you'll be doing in excess of 40 mph.

Otherwise, I'm not quite sure I get what happened. When I fold back the sunrider on my 4 door, I pull all of the fabric out as much as possible so as to not interfere with the folding rails. This puts the fabric way too far back over my roof to ever hit the back of my head. No problem on the highway.

So I guess what I'm saying is I don't quite understand how fabric got to the back of your head without something being wrong. Can you maybe post some pics of how the fabric got into the cabin, etc.?
I'm with you on this. When i open up, i push the canvas until it only has one fold and lays completely flat. Then when i strap the bars down, the weight of the header holds everything in place during highway driving. I also make sure the back window is open.
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Old 03-11-2011, 08:53 PM   #13
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I use a simple bungee to hold the sunrider in place with or without the rear window...doesn't go anywhere
I'm having trouble picturing the bungee, how does it go?
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Old 03-11-2011, 09:05 PM   #14
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The jeep should have come with two Velcro straps that are used to secure
the arms that are folded back. Look in your owners manual.
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Old 03-11-2011, 09:08 PM   #15
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Tomorrow when it is light out I will take a pic of the strap that came with mine that holds it down.
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Old 03-11-2011, 09:22 PM   #16
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I have never used the velcro straps - in fact they are wrapped around the roll cage on the drivers side to stop the drivers seatbelt flapping in the breeze (I am wearing the seatbelt, the part that runs down the roll cage flaps..)

I always drop the rear window in when opening the sunrider and regularly highway drive like that never a problem (60-75 mph)
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Old 03-12-2011, 11:10 AM   #17
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I have never used the velcro straps - in fact they are wrapped around the roll cage on the drivers side to stop the drivers seatbelt flapping in the breeze (I am wearing the seatbelt, the part that runs down the roll cage flaps..)

I always drop the rear window in when opening the sunrider and regularly highway drive like that never a problem (60-75 mph)
I tried that but those velcro straps aren't large enough to go around the roll cage so I picked some big ones up at Home Depot to wrap around the seat belts.
How did you get it to fit?
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Old 03-12-2011, 02:31 PM   #18
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I'm having trouble picturing the bungee, how does it go?
I just hook one end to the top Sunrider frame/bar and find a suitable location to hook the other end (usually a "nook" on the soft top frame near the side windows)
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Old 03-12-2011, 03:49 PM   #19
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Here is a picture of mine open. I just smooth canvas down flat and hook vvelcro straps around the bow. No worries at any speed. Wavey
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Old 03-12-2011, 06:19 PM   #20
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I tried that but those velcro straps aren't large enough to go around the roll cage so I picked some big ones up at Home Depot to wrap around the seat belts.
How did you get it to fit?
I used both straps together just for the drivers side, for some reason the passenger side doesnt flap!
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Old 03-13-2011, 03:12 PM   #21
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So you leave it connected to the tailgate bar and just tuck it in the trunk? It doesn't fly out or swing around?
Seems like I'd like this method the most
Be really careful of that window while it is laying back there. So many different ways to scratch it.

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