How to Open a Cadillac CTS Trunk Without a Key
Cadillac CTS trunk lockout: quick facts
- Body style: sedan with a conventional trunk (US, 2008-2019)
- Interior trunk release: inside trunk lid near cupholder or secret compartment, pull T-shaped emergency cable
- Rear seats: 60/40 split fold for cabin access
- Key systems: transponder, smart
- Most common cause: dead key-fob battery
Reviewed by Ray Obar, Master Locksmith. Last updated June 2026.
Quick answers
| Question | Answer |
|---|---|
| Can I open it without the key? | Usually yes — fold the rear seats, use the interior release, the fob button, or the mechanical key. Forcing the lid risks damage. |
| Where is the emergency release? | inside trunk lid near cupholder or secret compartment, pull T-shaped emergency cable. |
| Fob won’t open it? | Replace the fob coin-cell battery first — it’s the #1 cause. If that fails, it’s usually a lost/locked-in key or a failed latch. |
| Lost all the keys? | A locksmith can open it and originate a new key on-site after verifying ownership — typically faster and cheaper than the dealer. |
Safe ways to open the trunk without a key
✅ Safe to try yourself
- Fold the rear seats and reach through from the cabin
- Use the interior trunk release
- Replace the key-fob battery and retry the fob button
- Use the mechanical blade/key in the driver’s door if equipped
❌ What NOT to do
- Don’t pry or force the trunk lid or latch
- Don’t drill the lock or jam a screwdriver in the cylinder
- Don’t tear the weatherstripping to reach in
- Don’t keep mashing a dead fob — change the battery
When to call a locksmith — and what happens on-site
If the key is lost, locked inside, the fob is dead with no spare, or the latch has failed, a licensed mobile locksmith is the safe, fast option.
Cadillac CTS note: Trunk won’t open: common failure is broken wires in trunk loom (2008-2013) or latch actuator assembly; emergency cable accessible via 60/40 rear seat fold or cupholder secret compartment (pull T-pull). No mechanical backup key for trunk lid; keyhole exists on lid but won’t open without actuator function.
Low Rate Locksmith runs 24/7 mobile service and can come to you. Licensed, CSLB #5938-9. [Tap to call 24/7]
What affects the price
Cost depends on your key situation more than the trunk itself. Your dispatcher confirms an exact quote before any work.
- Spare (a working key exists) vs. all keys lost (origination costs more)
- Whether a new key must be cut and programmed to the car
- Whether a latch or actuator actually failed and needs repair
- Key type — smart key vs. transponder vs. mechanical
- Time of day and your location in the service area
Frequently asked questions
Can a locksmith open my Cadillac CTS trunk without the key?
Yes. A licensed locksmith can open a Cadillac CTS trunk non-destructively in most cases and cut or program a replacement key on-site if the key is lost, locked inside, or the fob is dead. Low Rate Locksmith offers 24/7 mobile service, licensed CSLB #5938-9.
Is it safe to open my own Cadillac CTS trunk without a key?
Yes, using the owner methods on this page — folding the rear seats, the interior release, the fob button, or the mechanical key. Avoid prying or forcing the lid or latch, which can damage the Cadillac CTS.
Why won't my Cadillac CTS trunk open even with the fob?
The most common cause is a dead fob battery — replace the coin cell first. Other causes include a lost or locked-in key or a failed latch actuator. If a fresh battery doesn't help, a locksmith can diagnose and open it on-site.
Where is the emergency release on a Cadillac CTS?
On the Cadillac CTS it's inside trunk lid near cupholder or secret compartment, pull T-shaped emergency cable, reachable through the folded rear seats.
How do I get into my Cadillac CTS trunk if I lost all the keys?
If all keys are lost, a locksmith can open the vehicle non-destructively and originate a new key to the car on-site after verifying ownership — typically faster and cheaper than a dealer.