Q: After unlocking the car from the drivers side, if the passenger door is opened before the key is put in the car the alarm goes off.

asked by on March 02, 2017

After unlocking the car from the drivers side, if the passenger door is opened before the key is put in the car the alarm goes off. We do not have a wireless fob yet to unlock the car, that may help but I'm not sure. We are unlocking the car using the key in the driver's door, have also tried using the indoor unlock button, but the alarm goes off for the passenger door regardless unless the key is in the ignition

My car has 54724 miles.
My car has an automatic transmission.

The key should only unlock the driver door with one turn and unlock all of the doors with two turns. If the passenger door is unlocking when the driver door is turned with one turn or if the alarm is still set if the driver door is turned two times, then the Immobilizer System Module needs replaced if you are intending on not using a key fob or you will need to get a key fob to manually turn off the Immobilizer System Module. If you need further assistance with your doors unlocking unusual, then seek out a professional, such as one from Your Mechanic, to help you.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Radiator leaking coolant badly.
Hello, A coolant leak should be repaired sooner than later as overheating can cause engine damage. Some coolant leaks only occur when the engine is hot and the system is under pressure. If you can't determine the exact source of...
Engine System Service Urgent message
This sounds like a check engine light is on and there are codes waiting to be retrieved. Have a certified mechanic, like one from YourMechanic, scan for codes and diagnose your system message (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection).
No response from gas pedal
Throttle body relearn would be one of the last things to consider after verifying that all wiring is correct and the actuator tests out ok. The issue could be very simple, or as complicated as internal engine malfunction, so I...
AC only blows hot air
Hello. We will be happy to assist! To diagnose an AC concern, I first suggest checking the refrigerant levels as it is the most vital component to the health of the AC system. Then, a technician should attempt directly switching...
I hear a hissing nose when I press on my brakes car barely stops
This may be related to your brake booster which is mounted on the firewall, and has what is called a master cylinder attached to it. The purpose of the brake booster is to assist in the stopping power of your...
Car turns over but shuts off after I release key
Hey there. This type of problem may need a little deeper and up close diagnostic to find the solution. If you saw smoke, there was something burning so there may be components along that circuit that may have failed. If...
Shaking 2011 Toyota RAV4
Hi there - occasional shaking (https://www.yourmechanic.com/question/car-is-shaking-badly) as you describe can be a number of things - a bad CV joint/axle (tend to shake while accelerating of turning), tire or wheel problems (bent, balance issue, tire separating). Worn suspension parts can...
Car overheated and now it's shutting off. It cranks but won't start.
Hi there. If the coolant leaks out too much, the computer will see this from the coolant temperature and coolant level sensors and shut off the engine to prevent any damage to the engine. Check for the coolant leaks and...
Car won't start key turns and lights dim when it cranks. I just don't hear a buzzing sound from the fuel pump when turn key to on
Code U1100 signifies a communications error which is either a module fault or a deficiency in the wiring harness between communicating modules. There's a possibility that a dying battery is a cause of such a code (and a cause of...

Related articles

A Buyer’s Guide to the 2012 GMC Sierra Hybrid
When When you buy a truck – even a half-ton truck like a GMC Sierra 1500 – you expect to make a trade-off between hauling capacity and fuel efficiency, right? Well, the designers and engineers at GMC don’t think that...
A Buyer's Guide to the 2012 Scion tC
In In general, Scion has been a car manufacturer that continues to climb in popularity. Perhaps no model exemplifies this more than the 2012 Scion tC. Back in 2011, Scion gave this vehicle a facelift and, by the following year,...
A Buyer’s Guide to the 2012 Mercedes-Benz CL-Class
Think Think of the 2012 Mercedes-Benz CL-Class as the two-door cousin of the S-Class lineup. Each vehicle in this class is a stylish, sexy coupe. What’s more – they all manage to combine incredible performance with svelte styling. They might...