Skip the auto shop - Our mechanics make house calls

Q: Problems with keyless start

asked by on

My Nissan Altima has keyless starting. There have been two times when I tried to start the car, but it randomly wouldn't start. Here's what I tried when it happened, without success: I pushed the starter button, and it goes from lock, to acc, to start, but it never starts. The engine and starter do not kick. When I have the shop check it out, they claim there are no error codes produced, and were unsuccessful in replicating the problem. Please advise if you have any idea what the problem might be.

With problems that are intermittent, it can be tricky to diagnose them. There is a common issue with these cars though, which is a failed brake light switch. This is the switch that indicates when you have applied the brake pedal, and the vehicle needs to see a signal that the brakes are applied before it will start. It may not set a fault because it just doesn’t see the brake pedal is being pushed. Next time it happens to you, try pumping the brake pedal. If it starts after you do this, then it would be safe to assume this was the cause of your no start situation. If this is the case then you can have a qualified professional technician, such as one available through YourMechanic, replace the switch for you. If the brake light switch isn’t the cause, they would be glad to figure out the no start problem for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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 goes dead when I turn the key

I'm sorry I didn't get your engine size, but this seems to be a common concern. I am thinking something caused your battery to die. Your symptoms sound like a vehicle trying to start on a near dead battery. Have...

Q: Won't start say running

Code 42 is indicative of an auto shutdown relay problem. This can be caused by a wiring issue to the fuel pump - most likely a short or broken wire. Sounds like it's time for an electrical diagnosis. A professional...

Q: Lost my transponder key. if i replace my ignition.cylinder do i need to program the new transponder key? 2003 Mitsubishi Galant

Hello - yes, if you do not have at least 2 keys that are already "recognized" by the transceiver, you must have the new keys programmed at a Mitsubishi service center or locksmith equipped with the proper equipment. If you...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...