By the Prime Locksmith Team | AV Locksmith LLC, Texas DPS Licensed Locksmith Company, License #B31141501
Few things are more frustrating than sliding your key into the ignition and feeling it refuse to turn. Ignition problems are common in vehicles that see heavy daily use, and they tend to get worse over time. Our auto locksmiths repair and replace ignition cylinders on-site for drivers across San Antonio. Here is how to tell what is going on.
Quick Checks Before You Call
- Wiggle the steering wheel gently while turning the key. A locked steering column can put pressure on the ignition and keep it from turning.
- Make sure an automatic transmission is fully in Park.
- Try your spare key. If the spare works, the problem is likely a worn key, not the ignition.
- Never force the key or use pliers. A key that snaps inside the cylinder makes the repair more involved.
Common Signs of a Failing Ignition
- The key turns only after jiggling or several tries.
- The key sticks and will not come out of the ignition.
- The key turns freely but nothing happens.
- The key goes in only partway.
- The vehicle stalls or the dash flickers when the key is bumped.

Cylinder or Switch? Knowing the Difference
The ignition cylinder is the mechanical part your key turns. Inside are small wafers that must line up with the cuts on your key. Over years of use, both the key and the wafers wear down, which is why the key starts to stick. The ignition switch is the electrical component behind the cylinder that sends power to the starter and accessories. If the key turns smoothly but the dash and starter do not respond, the issue may be electrical, or it may be something as simple as a weak battery.
What Ignition Repair Looks Like
Our technician first diagnoses whether the problem is the key, the cylinder or something else. Depending on what we find, the job may involve cutting a fresh key to factory specifications, servicing the existing cylinder, or replacing the cylinder. When we replace a cylinder, we can often key it to match your existing door key, so you still carry one key for the whole vehicle. If your vehicle uses a transponder key, we make sure the key still communicates with the immobilizer when we finish.

Broken Key in the Ignition?
If a key breaks off inside the ignition or a door lock, do not try to dig it out with a knife or glue. We use dedicated extraction tools to remove the broken piece without damaging the cylinder, then cut a new key.
Frequently Asked Questions
Can a locksmith replace an ignition instead of the dealer?
Yes. Auto locksmiths repair and replace ignition cylinders for many makes and models, and we come to the vehicle.
Will I need a new key?
Not always. If your key is badly worn, a new key cut to factory code is often part of the fix.
Ignition Trouble in San Antonio?
Prime Locksmith services ignitions on most domestic, European and Asian cars, trucks and SUVs. Call (210) 762-4327 or visit primelocksmithsa.com to request service. Hours: Sunday to Thursday 7:00 AM to 10:00 PM, Friday 7:00 AM to 4:00 PM, closed Saturday.
About the Author: This article was written by the Prime Locksmith team, the mobile auto, residential and commercial locksmiths behind AV Locksmith LLC, DBA Prime Locksmith. Prime Locksmith is a Texas DPS licensed locksmith company (License #B31141501) and a BBB Accredited Business serving the greater San Antonio area.

