How to change a brake light when the rear door won't open
Rear cargo doors often jam shut, trapping the brake light assembly behind an unopened panel. Without access to the interior screws, drivers cannot swap out burnt-out bulbs or reach the latch mechanism from the outside.
What the numbers show
Counted from the threads quoted below. How we count
- The most recent one is from October 2026.
- This comes up 8.7× more often in r/AskMechanics than across the site as a whole.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1Accessing the latches from the interior by removing the trim screws to manually pull the rods open.Did this help you?
- 2Using a credit card to loosen the latchDid this help you?
- 3Pulling and twisting the mechanism with a screwdriverDid this help you?
- 4Breaking the mechanism away from the door using a stronger screwdriver and brute forceDid this help you?
- 5Using the electric fob to lock and unlock the doorDid this help you?
- 6Opening the door from the inside and removing the door panel to check linkagesDid this help you?
- 7pulling the internal emergency releaseDid this help you?
- 8using various tools like pliers to pull out the cardboardDid this help you?
- 9husband pressing down on the trunk while I attempt to pull out cardboard with a toolDid this help you?
- 10researching potential issues like a broken actuator or cylinderDid this help you?
- 11calling a locksmith to open the door panelDid this help you?
- 12Holding down the unlock button on the car key to lower the windows and opening the door from the insideDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“Went on my grocery run today, it worked fine then. Got home and it wont open. Dashboard says its unlocked. Pressing fob, dashboard, and trunk? Button it makes the chime and some latching noise but it is still stuck. I could not even lift it.”source ↗
“I've got a Seat Leon FR 2016, its 2 door and the drivers side door doesnt open whenever I unlock the car. I have to hold the unlock button down on my car key to lower the windows so that I can open it from the inside.”source ↗
“Been trying to find the correct part to replace the lock but dont really know what I'm looking for. Can anyone help?”source ↗
“when I go to unlock the car, all doors still work except passenger.”source ↗
“can’t even physically unlock it on the inside. Like cannot pull latch to unlocked position.”source ↗
“Every time, I turn on the car the powerlift red icon is on.”source ↗
“A piece of cardboard caught in the locking mechanism & now we can't open the trunk through the inside or outside.”source ↗
“when I bought it i was told the rear door didn’t open... my left rear brake light went out. I need to either: open the door immediately, or change the bulb from the unopened back of vehicle.”source ↗
“The key fits fully into the driver’s door lock cylinder and I can turn it, but it doesn’t actually unlock the door. The key seems to turn fairly freely, although it does have a definite mechanical stop.”source ↗
“I came home yesterday to my door completely jammed it is an old kwikset lever I have already tried shoving a credit card to loosen the latch and various pulling and twisting of the mechanism with a screwdriver and it is a security door so I don’t think pulling the hinge pin is an option does anyone have other ideas before I have to damage the door or pay a few hundred for a lock smith”source ↗
“My husband took off the knob, but has since went to work. I’m home with my newborn and toddler, so I need to figure out how to fix this.”source ↗