The key goes in but won't budge — or it turns halfway and sticks. Forcing it can snap the key or finish off a worn cylinder. The good news: in many cases the cause is simple, and a mobile specialist can sort it out right where the car sits.
Before assuming the worst, rule out the causes that cost nothing to fix. A surprising share of "my key won't turn" calls end with one of these:
One warning: never force it. A key that snaps off inside the cylinder turns a manageable repair into extraction plus repair. If gentle pressure doesn't work, stop and get it diagnosed.
When the simple checks fail, the problem is almost always one of three components. Telling them apart matters, because they have very different fixes and prices.
The barrel (ignition cylinder). This is the mechanical lock the key slides into. Inside are small wafers or pins that must line up exactly with your key's cuts. After years of use — especially with a heavy key ring swinging from it — the wafers wear, stick, or collapse, and a worn key makes it worse. This is the most common cause we see.
The ignition switch. Behind the barrel sits an electrical switch that actually sends power to the starter and accessories. A failing switch usually lets the key turn but delivers nothing — no dash lights, no crank — or it works intermittently. If your key turns smoothly but the car behaves like the battery is dead (and the battery is fine), suspect the switch, not the barrel.
The steering lock and interlock. The column lock and shift interlock are safety systems that can physically prevent the key from turning. A jammed steering lock, a faulty interlock, or a weak battery (many newer cars need full voltage to release the key) can all mimic a bad ignition.
Because the three causes look alike, a proper ignition repair starts with diagnosis, not parts. At your car, we check the key itself against the factory code, test whether a fresh key cut by code turns cleanly, inspect the cylinder's feel and wafer action, and verify power through the switch and the interlock. That sequence tells us whether you need a new key, a cylinder repair, a rekeyed replacement matched to your existing key, or a switch — before you pay for any of them.
In many cases the fix is the cheap one: a correctly cut key. When the cylinder does need work, we can repair or replace it at your location across Metro Atlanta — including Peachtree Corners, Norcross, Sandy Springs, Roswell, Duluth, and Marietta — with no tow to a dealer. If your car also needs a programmed key, see our car key replacement service.
On some makes — Jaguar is a recent example we've seen in Metro Atlanta — an ignition fault can involve model-specific parts that have to be ordered, which can mean quoting the job in two stages: diagnosis first, then the repair once the correct part is in hand. A straight answer about that up front beats a cheap quote that can't be finished. Whatever you drive, ask any provider two questions: what exactly failed, and will my existing keys still work afterward? A good repair keeps your current keys working whenever possible.
Mention this website when you call for 10% off any service.
We diagnose the barrel, switch, and interlock at your location and repair or replace on site — no tow, upfront pricing.
Fill out this quick form and get your discount code instantly — 10% off any service we offer. Need a spare? Take 50% off a second key for the same vehicle when we make it during the same visit.