Parts for your 2012 Toyota Wish-Gas struts

2012 Toyota Wish gas struts — what they do and when to replace them

Gas struts are fitted to the 2012 Toyota Wish for the rear back door/tailgate. Toyota’s Electronic Parts Catalogue (EPC) lists “Stay, Back Door” assemblies for the ZGE20W/ZGE22W series, and the Toyota Repair Manual (Body – Back Door – Back Door Stay Removal/Installation) covers service steps for these gas-charged units. Aftermarket catalogues from brands like Stabilus and Monroe also list matched tailgate lift supports for the 2012 Wish. Most trims use a manual prop rod for the bonnet, so bonnet gas struts generally aren’t OEM on this model.

On a 2012 Wish, the tailgate gas struts take the heavy lifting out of opening the back door and keep it safely supported overhead. They’re small, sealed cylinders charged with nitrogen gas and oil, tuned to balance the door’s weight so it opens smoothly and doesn’t drop on someone’s head. Nice and simple, but crucial for day-to-day practicality.

Over time, seals harden and a bit of gas pressure is lost, especially with big temperature swings. That’s when owners start noticing the tailgate feels lazy, needs two hands to lift, or sags in a breeze. Because the struts work as a pair, it’s best to replace both together so they share the load evenly and last longer.

• Common signs it’s time: tailgate won’t stay up, slow rise in cold weather, noticeable bounce at the top, oily film on the rod, or a faint hiss with little resistance.
• Quick checks during servicing: wipe the rods with a clean cloth, make sure the ball-stud mounts are tight, and listen/feel for uneven damping left-to-right.

Replacement is a straightforward DIY for many, but safety first. Support the tailgate with a prop or a mate before popping the spring clips off the ball joints. Don’t drill, heat or open a gas strut—these are high-pressure units. Clip the new ones on with the rod pointing down, confirm both ends are fully seated, then test the door travel a few times. Workshops will often check them annually and typically see service life around 6–10 years, depending on climate and usage.

• Service tips: replace in pairs, keep the rods clean (no grease or silicone on the shaft), avoid forcing the tailgate against low ceilings, and check operation every 20,000 km or at regular services.
• Quality matters: OE-equivalent gas struts maintain the correct opening speed and holding force, which protects hinges and the back door latch over the long haul.

FAQs

How long do the tailgate gas struts last on a 2012 Toyota Wish?

Typically 6–10 years, but colder climates and frequent use can shorten that. If the tailgate feels heavy, drops unexpectedly, or rises slowly in winter, it’s time to test and likely replace them.

Do both gas struts need to be replaced at the same time?

Yes, best practice is to replace them as a pair. Mismatched force left-to-right can twist the tailgate, stress hinges, and give inconsistent lift and hold.

Does the 2012 Wish have bonnet gas struts?

Most 2012 Wish models use a manual prop rod for the bonnet from factory. Bonnet gas struts are usually an aftermarket upgrade rather than OEM on this vehicle.