How does OnStar diagnostics work on my car?
Diagnostic and Proactive Alerts are available to Basic Plan Members, while on-demand diagnostics are available only to Members with paid service plans. How do I perform a diagnostic check on my vehicle? Just push the blue OnStar button. An Advisor can run a diagnostics check and tell you if there is a maintenance issue that requires your attention.
When does the Check Engine light come on?
The “check engine” light is perhaps the most confusing of all indicators on your dashboard. It is part of your car’s On Board Diagnostic (OBD) system. When it detects a problem in the electronic control system that it cannot fix, the computer turns on a warning light which is usually labeled “check engine.”.
Will car pass emissions with check engine light on?
Do not bring your car in for a state emissions test if the “check engine” light is on. In most states a “check engine” light indicator will cause your car to fail inspection even if the problem has nothing to do with emissions.
What does a proactive alert on OnStar mean?
What is a Proactive Alert? is an alert sent to the OnStar Member when data from vehicle systems predict potential issues with key vehicle components, including the battery, fuel pump, fuel pressure sensor and starter motor. This service is available on a limited number of models.
How does OnStar diagnostics work on your car?
That’s where Vehicle Diagnostics*21comes in. Think of this valuable OnStar service as your vehicle giving you regular updates on how it’s doing. Vehicle Diagnostics can run regular checks on your vehicle’s key operating systems and email you a detailed monthly report on those systems, including: Air bag system Antilock brake system
What to do if your car has a check engine light?
We get it. OnStar is there for you if a problem occurs on the road. If the “Check Engine” light comes on or you have a concern while you’re driving, just push the blue OnStar button and ask the Advisor to run an On‑Demand Diagnostics*21check.
What does it mean when your check engine light is flashing?
Is the CEL Lit or Flashing? If the light is steadily lit, that means that one of your engine sensors is doing one of two things – it’s either sending a signal to the vehicle’s ECU that something is wrong, or the vehicle’s ECU (computer) itself has lost an accurate read on that particular sensor – meaning, the sensor has gone out.
What does it mean when service engine light comes on?
When the light comes on, a code is stored as the reason for triggering the light. When you take your car in to get it checked out, the mechanic hooks up a little diagnostic computer to your vehicle’s computer. They will then get a code and description that tells them what the issue is.
How does the OnStar cell phone service work?
All of the services that OnStar provides are a result of one or more of these technologies working together. OnStar’s cellular service is voice-activated and hands-free. The console contains a built-in microphone and uses the car speakers. To make a call, you speak a phone number or a previously stored name associated with a phone number.
How does OnStar remote keyless entry service work?
Unlike remote keyless entry fobs, which use RF signals, OnStar’s unlock service uses its cellular network to send a signal to the module that controls the locking system. For OnStar to unlock your car, you must give the advisor your account number and PIN. Unless you share your PIN, you are the only one who can get OnStar to unlock your doors.
Diagnostic and Proactive Alerts are available to Basic Plan Members, while on-demand diagnostics are available only to Members with paid service plans. How do I perform a diagnostic check on my vehicle? Just push the blue OnStar button. An Advisor can run a diagnostics check and tell you if there is a maintenance issue that requires your attention.
What is a Proactive Alert? is an alert sent to the OnStar Member when data from vehicle systems predict potential issues with key vehicle components, including the battery, fuel pump, fuel pressure sensor and starter motor. This service is available on a limited number of models.
How can I get OnStar alerts on my phone?
You can choose to enroll in alerts delivered to your email address on file, or if you have a paid plan, real-time reports and alerts via Owner Center or through an OnStar Advisor, either by email or text message. Message and data rates may apply.
How can I tell if my ABS system is working?
The ABS Light is on. The most common sign of an issue with the ABS system is the ABS Light coming on. The ABS Light will show an amber color, and is the equivalent of a Check Engine Light, except it is only to diagnose problems with the ABS system. Older vehicles equipped with earlier ABS systems may not have an ABS Light,…
How long does it take for check engine light to come back on?
Both methods clear all the Diagnostic Trouble Codes (DTCs) from the On-Board Diangntoic computer at least temporarily. This procedure also reset the various systems in the car to Not Ready state. Depending on the problem, the check engine light could come back right away or could take up to two weeks to turn on.
When to stop for check engine warning light?
If you’re positive that it’s a check-engine warning light staring back at you from the gauge cluster, there are some key things to remember. If the light is a steady orange or yellow and there is no perceptible change in how the car is driving, you don’t need to stop the vehicle immediately.
Can a scanner turn off a check engine light?
The scanner also allows you to clear the vehicle’s internal code, which is what triggered the check-engine light. Do that, and the warning light will turn off. More on that later. To shut off the warning light, and to know exactly what’s wrong with your vehicle, you need a scanner.
What kind of diagnostics can OnStar do on a car?
Also referred to as OVD, OnStar Vehicle Diagnostics can run a thorough check of a vehicle’s various systems, including its engine, transmission, antilock brakes and more. OVD can also perform an on-demand diagnostics check when the vehicle is being driven.
What’s the best way to reset a check engine light?
In such a case, it is highly recommended to check the codes with a scanner instead. Switching the ignition on and off is also one method of hard reset without disconnecting batteries. Put the keys in your ignition and turn your ignition on and off consecutively after a second in each step.
If you’re positive that it’s a check-engine warning light staring back at you from the gauge cluster, there are some key things to remember. If the light is a steady orange or yellow and there is no perceptible change in how the car is driving, you don’t need to stop the vehicle immediately.
The scanner also allows you to clear the vehicle’s internal code, which is what triggered the check-engine light. Do that, and the warning light will turn off. More on that later. To shut off the warning light, and to know exactly what’s wrong with your vehicle, you need a scanner.