[Free Solution] 2015 Cadillac ATS won’t respond to key fob - immobilizer problem?

4104 views - Last reply: March 08, 2025
This topic is closed for new replies.
Silverfox
Member since August 2022 • 64 posts

Need the factory key code to program a key for my 2015 Cadillac ATS

Posted on March 08, 2025
Adminbot
Staff Member • 1585 posts

Hello! We've developed a VIN-based tool to help you get your key code for the 2015 Cadillac ATS. Check it out here: VIN Key Code Generator.

Posted on March 09, 2025

Replies (4)

Techlord
Member • 57 posts

I'm stuck trying to get the key code for my 2015 Cadillac ATS, hope this helps.

March 09, 2025 Reply
Zerogravity
Member • 20 posts

Just tried this on my 2015 Cadillac ATS—anyone else have success?

March 10, 2025 Reply
Blackwidow
Member • 51 posts

Crossing my fingers—really need this for my 2015 Cadillac ATS!

March 11, 2025 Reply
Zombieking
Member • 37 posts

I have the same 2015 Cadillac ATS and I'm also trying to find the key code.

March 12, 2025 Reply

Check the news !

Rally Car Experience Day
🚙 Local Meetup: Rally Car Experience Day
A casual meet for all makes and models

🏁 Where: Brewery District
📆 When: May 22 @ 10AM-5PM

Event features:
Show 'n Shine | Dyno Challenge | Parts Swap

⚙️ Forum Members: Special section just for forum members! ✨

🔩 Performance Modding 101

👩‍🏭 Instructors:
• Master Technician Carlos Rodriguez (20+ years experience)
• Detailer Extraordinaire Lisa Wong

⚙️ Hands-On Activities:
• Suspension geometry setup
• 4-hour intensive training
• Personal coaching

📋 Skills Covered:
Paint decontamination | Polishing | Protective coatings

🏎️ May 11, 2026 at 1:00 PM (4-hour)

💡 Certificate of completion provided!

Workshop: Performance Modding 101
ECU Remapping Masterclass

🚀 ECU Remapping Masterclass

⚙️ Instructor: Engine Builder Mike O'Connor (1000+ HP builds)

📊 Workshop Includes:
• Component selection guides
• 4-hour intensive hands-on training
• NVH reduction | Drivability tuning | Daily driver balance

🔩 Bonus: 1-month mentor access

🏎️ Next Session: May 7, 2026 at 10:00 AM

Customize Your Tuning Focus:

🚀 Performance Mod Cost Estimator

Warning: Cheap parts often cost more in the long run due to failures

Vehicle Information

Modification Information

Additional Options

🔑 Car Key & Fob FAQ

Common questions about key programming, fob issues, and replacement options

Key Fob Issues
1) Find the seam and pry open the fob (some have tiny screws) 2) Note battery orientation 3) Remove old battery (CR2032 is most common) 4) Insert new battery 5) Reassemble. Test all buttons - if issues remain, the fob may need reprogramming.
Cost & Options
You can buy fobs online, but: 1) Must match your exact model/year 2) Many still require professional programming 3) Cheap knockoffs may not work reliably. Some eBay/Amazon sellers offer programming instructions for DIY-friendly models.
Key Programming
Professional key programming requires: diagnostic tools to access the immobilizer system, key code software, transponder programmers, and often proprietary manufacturer equipment. Some locksmiths and all dealers have these tools.
Key Tip: Always have at least two working keys to avoid expensive replacements
Key Fob Issues
1) Find the seam and pry open the fob (some have tiny screws) 2) Note battery orientation 3) Remove old battery (CR2032 is most common) 4) Insert new battery 5) Reassemble. Test all buttons - if issues remain, the fob may need reprogramming.
Security Systems
Some systems reset by: 1) Disconnecting battery for 15+ minutes 2) Using original keys in specific sequences 3) Professional diagnostic reset. Consult your manual - procedures vary. Persistent issues may require dealer-level tools.
Key Tip: Replace key fob batteries every 1-2 years as preventative maintenance
Key Fact: Many cars can store up to 8 different key codes in memory

🔑 KEY SERVICES CLASSIFIEDS

Transponder Key Duplication
$65+
Posted: Apr 20, 2026
Get spare keys made before you lose yours! Cuts and programs most transponder keys on the spot. Cheaper than dealerships. 15+ years experience.
Call: 834-508-7879
Car Key Extraction Service
$45+
Posted: Apr 19, 2026
Broken key stuck in ignition or door? We can remove it without damage and make new keys same day. Emergency service available 24/7 for lockouts.
Call: 428-284-4384
Anti-Theft System Repair
$85+
Posted: Apr 25, 2026
Fixing security light issues, PATS systems, and ignition immobilizers. Proper diagnosis before repair. Most vehicles serviced same day. Warranty on all work.
Call: 507-210-4724
Fleet Key Programming
Call
Posted: Apr 19, 2026
Commercial key services for businesses with multiple vehicles. Bulk discounts available. We can handle all your company cars, trucks, and fleet vehicles.
Call: 371-671-6363
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Workshop
May 17, 2026

Smart Key Programming Class

by Mobile Key Tech
Comprehensive guide to troubleshooting and resetting immobilizer systems in modern vehicles
Workshop
May 25, 2026

VIN Decoding Workshop

by The Key Lab
Live demonstration of the latest anti-theft technologies and bypass prevention methods
Workshop
May 7, 2026

VIN Decoding Workshop

by Auto Key Masters
Live demonstration of the latest anti-theft technologies and bypass prevention methods
Workshop
May 18, 2026

Lost Key Solution Roadshow

by Immobilizer Experts
Hands-on training for programming transponder keys, smart keys, and fobs using professional tools

Need immediate service? Call our 24/7 hotline: 1-800-KEY-HELP

Want to list your key service? Join our provider network

Last posts on the forum