Q: Central locking is no longer working.

asked by on

The remote locking had just stopped working on my trailblazer. I have two sets of remotes and neither of them are working with the car currently. It was totally random just came back from a trip and it wouldn't lock but had been fine the rest of that day. I have tried re-programming the remotes to the car as I was t sure if the dog standing on the door button may have caused it to disconnect somehow however this doesn't work and I have today tried replacing the remote batteries and trying to reprogam again but this hasn't worked either. The doors were locking/unlocking with the button on the door panel but this is no longer unlocking now either. The trunk doesn't have a key entry point so it currently will not open. Do you have any idea what could be wrong with it? and is this easier to do ourselves? If not, what sort of price it is likely to cost to repair it?

My car has 212720 miles.
My car has an automatic transmission.

It sounds like your vehicle has a problem with the body control module, mainly because you said the power locks are also inoperative from the door panel. The first thing I would suggest is to check the fuses, then have the body control module scanned. This might give you a fault code to work with or to help diagnose the issue. It may simply be a blown fuse. Beyond that, not much can be done without a test light, wiring schematic, and a good working knowledge of automotive electrical systems. At that point, I would recommend having the locking problem diagnosed by a professional technician.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Central locking is no longer working.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car is revving high constantly with loud noise and makes the engine sluggish

The most common cause of this revving is either a stuck throttle or the mass airflow (MAF) sensor. This fault should be addressed as soon as possible for normal operation as this revving can become dangerous if the vehicle is...

Q: Turn signal and 4 ways quit working

The turn signal flasher module is located above the brake pedal and above the brake light switch. You will see purple, pink, orange, black, and brown wires going to it. This is the most common cause of the failure you...

Q: My 02 Chevy Trailblazer Has a rough idle and sometimes the RPMs go up withiot the car increasing speed

The first thing to check for in any idle or drivability problem is air leaks. Any air that gets into the engine without being measured will lean out the system and cause problems. Look at all the rubber hoses and...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.