No laughing please...

I'm 6' 4" and this morning I opened up the tailgate on my 2014 SR5 and hit my head as I let the dog up. Does anyone know if the struts can be adjusted as it was cold this morning (around 26 F) and I think that the pressure is too high to let the tailgate open fully when it is cold

Not adjustable. Must be time for a lift and bigger tires, for ergonomic reasons.

I'm 6'4 too and in the cold months this happens to me too. You have to push the tailgate up manually to get it all the way up. I agree with Jeremy...lift it for safety reasons.

Same height as you and I have smacked my head a time or two myself. Unfortunately you are wrong on the pressures as the struts contain nitrogen which is very stable gas at different temperatures and will maintain the correct pressure. Just do what I do: duck.

Not sure there's any length difference, but doesn't GOBI sell heavy duty lifters for the tailgate?

Might at least help get the door all the way up during winter months.

I know nitrogen does hold up better to temp changes but I notice mine are slower when I'm in the high country and its really cold. Since I put the ladder on its worse. I'm going to get the higher pressure ones but if you are stock that might be dangerous to open.

There is a thread for reasonably priced higher pressure ones that you might consider. (Not the expensive Gobi ones)

My first day with my 2012 I clobbered my head hard enough to bleed down my face. The lift gate does not open as eagerly as the lift gate on my 2003!

I have often wondered why they seem to be affected by temperatures, I knew they used Nitrogen for its stability in temperature variances (i.e. the physical expansion characteristics of the gas at a given temperature range.) So I can only assume the reduction in extension speed/strength is a result of the shock fluid's viscosity (which I would have thought would have been equally chosen for wide temperature variations?)

I notice on many vehicles and implements with gas charged shocks, be it hoods, trunks, hatches, hutches, the top of my tool cart, ect. all seem to react slower in colder weather (i.e. sometimes I can just let the hatch sit at half height or my tool cart lid doesn't open when I unlock it; but if I just gently assist it a little it slowly pops open), yet in hot weather they almost fling open (during the summer months I can't leave my tool cart unlocked because the lid always wants to pop open and my hatch will go from about 1/4 open to fully open by itself in hot weather.)

Post Note-

Be thankful you don't own a Lincoln or Ford SUV with the automatic tailgates, those things barely open all the way and I've smacked my head on them a couple times doing used vehicle inspections (and I'm barely 6'-ish). It seems a lot of those automatic tailgates sacrifice a bit of arc (in terms of fully opened position) for the feature, in the case of the Lincoln/Fords I have no idea how you're supposed to load anything in them, I almost always had to duck under the door somewhat to get in there.

Exactly. Actually its a very simple version of the KDSS system lol. The big difference between the two is the rear struts have a simple fixed orifice and KDSS uses valving with variable orifices. The viscosity of the fluid in the rear support struts was chosen to provide optimal performance in a temperature range for proper flow through that fixed orifice. The fluid flowing through that orifice is what gives you the slow smooth opening action. When its too cold the fluid flows slower through the orifice and of course slows the operation of the lift gate. We could make them adjustable for cold temps quite easily but the average owner would then forget to adjust them when warm weather arrives and it would then knock them out by hitting them in the chin!

bought a new pair of a bit stiffer struts from LiftSupportsDepot.com just because of this.

It has fixed the problem to a certain degree, but still, as soon at it is less than 30deg F outside, the door opening gets very lazy, with it absolutly needing help at very cold temperatures, as the shocks offers no more tension in the medium-upper part of their travel.

But the threads we would read about would be more entertaining! I say supercharge the damn things!

I'm thinking dual or triple remote reservoirs and a triple shot of NOS?

thanks - so glad it is not just me. Funny how Toyota couldn't get this right though - I've had tailgates on my vehicles since 1980 and never an issue - Ford Fiesta Sandpiper, Fiesta XR2, Montego Diesel Estate, Vauxhall Omegas (3), Dodge Caravans (2) and Honda Odyessy. A shockingly awful collection of vehicles I know but most thankfully company paid rides!

I would think its the o rings or seals and the low temperature causes expansion or contraction of these materials causing slower action. Just my guess to consider.