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Why can't the trunk of the Mazda CX-5 open?

4 Answers
DelSara
07/29/25 12:24pm
Here are the possible reasons why the trunk of the Mazda CX-5 cannot open: 1. The car's remote key is out of battery. 2. Poor signal interference. 3. Solution: You can replace the battery or use the key to open the trunk. Below is some related information about the Mazda CX-5: 1. Body dimensions: The length, width, and height of this car are 4555 mm, 1842 mm, and 1685 mm respectively, with a wheelbase of 2700 mm. 2. Powertrain: (1) 2.0L naturally aspirated engine: Produces 155 horsepower and 200 Nm of maximum torque, with a maximum power speed of 6000 rpm and maximum torque speed of 4000 rpm. (2) 2.5L naturally aspirated engine: Produces 196 horsepower and 252 Nm of maximum torque, with a maximum power speed of 6100 rpm and maximum torque speed of 4000 rpm. 3. Suspension: The Mazda CX-5 uses a MacPherson independent front suspension and a multi-link independent rear suspension. 4. Models: The Mazda CX-5 is available in both front-wheel-drive and four-wheel-drive versions, with the four-wheel-drive version equipped with an on-demand four-wheel-drive system.
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DiEleanor
08/13/25 11:24pm
I've been driving a Mazda CX5 for many years and have encountered the issue of the trunk not opening several times, usually due to mechanical component failures. For example, the latch hook rusts and gets stuck, the spring ages and loses its elasticity, or sand and dirt enter the lock cylinder making it hard to turn. Especially on rainy days or in winter, the door lock is prone to moisture and freezing, so you might need to gently tap the door edge to see if it loosens. Also, if turning the key to unlock feels stiff, it's likely a fault in the lock itself. Additionally, the rods on the trunk door might deform, causing the door to get stuck when opened; in such cases, gently pushing the door corner might help. If you can't fix it yourself, it's best to visit a repair shop to have a mechanic check if the lock needs replacement or lubrication—never force it open to avoid damaging the sealing strip. Parking away from puddles and regularly spraying WD-40 into the lock cylinder can help reduce such troubles.
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LeEmery
10/09/25 3:30am
When using my CX5, the trunk not opening is often related to the electronic system. If your car has a power tailgate function, the issue might be with the remote key—dead battery, strong signal interference, or poor button contact. Try replacing the battery or re-pairing it. Sometimes, it's a blown fuse inside the car, especially the tailgate circuit fuse located in the cabin fuse box. Refer to the manual for its location and replace it if blown. Software bugs can also cause issues, such as occasional system crashes. Restarting the vehicle or disconnecting the battery for a few minutes and reconnecting might help. Also, check if the sensors are blocked by debris, affecting automatic opening. Modern cars are highly intelligent, so I recommend checking the remote response before driving and updating the onboard software promptly to avoid electronic malfunctions. A diagnostic check at the dealership is also a good idea—they have professional equipment.
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AmeliaFitz
11/22/25 4:45am
When taking kids out for fun, my CX5's trunk often won't open, mostly due to operational errors. The child safety lock might have been accidentally activated—there's a switch on the inner side of the door; turning it off can unlock it. Or perhaps the remote control button was pressed incorrectly, like using the lock button instead of the open button—try operating it differently. Small toys or debris stuck in the trunk door gap might also jam the latch; clean it out before pulling the door. If the key turns too hastily when unlocking, it might get stuck; turning it slowly could do the trick. I've also encountered the situation where the vehicle's anti-theft mode was mistakenly set, locking the rear access—requiring a reset of the anti-theft settings. At home, you can first check if the trunk button is clean and undamaged, gently push the door while turning the key, avoiding excessive force to prevent damage to the car. Stay calm and don't panic during operation—these issues are simple to fix.
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