Skip the auto shop - Our mechanics make house calls

Q: Bluetooth works engine off

asked by on

My Bluetooth voice only works when my engine isn’t running. And it works OK with the key turned on and engine not running. When I start the engine the Bluetooth calling on an after market Bluetooth device is unusable. I have a Parrot Asteroid Classic radio with Bluetooth. iphone 4 and 5 don’t work with this radio. It has a lot of known problems but Bluetooth isn’t one of them. My Parrot radio installer who has 30 years experience dealing with AM noise can’t figure it out because there is no AM noise. He switched out the radios changing the ground from float to chassis. I have tried different phones and phones from different distances in case the iphone is creating some magnetic interference. Could there be a known problem with these vans with interference coming from a specific part of the engine such as the alternator?

Hello. EMI (electromagnetic interference) is electromagnetic energy that is passed through electronic devices. EMI is disruptive and can affect bluetooth devices and/or your GMC Safari’s electronic system if not properly shielded. This is not a common problem, but it is possible that any of the engine electronic components are causing EMI, and affecting the performance of your bluetooth.

It is also possible that external factors like, power lines, satellites, radio towers, may be causing electromagnetic interference, causing your bluetooth to malfunction when the engine is on. If your problem is, in fact, electromagnetic interference (EMI) certain internal engine systems may be greatly affected and potentially dangerous, such as the ignition system, the electronic braking system, the tire pressure monitoring system, the fuel control system, the air bag, and/or the powertrain control module (PCM). Other Parrot Asteroid Classic Radios with bluetooth may or may not present the same problem.

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: Dash lights flashing on while driving

Hello, thank you for writing in. Electrical issues can be incredibly difficult to diagnose. Typically when every dash light turns on, there is an issue with the main power supply. This means an issue with the battery, alternator, wiring, or...

Q: I need a website where i can find spare parts.

Here are some websites I would recommend checking for parts: Mercedes Parts Center MB Online Parts Get Mercedes Parts Your VIN number should be located on the driver's side of the windshield lower corner. You should also be...

Q: The engine is making rattling very high noise when you start the engine and constant.

The fact that the oil pressure drops when slowing down or stopping would suggest that the oil pressure is lower at lower engine RPM's. This means that the oil level volume is low. The oil capacity in an engine is...

Related articles

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...
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.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.