Jump to content
  • Sign up for FREE! Become a GM-Trucks.com Member Today!

    In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. 

OnStar proactive alert, starter motor


Recommended Posts

I got an email from OnStar about a possible problem with my starter motor or it's connection, for my 2017 5.3L Silverado.

 

Just curious if anyone has had this alert before, and if you took it to the dealer what was the cause and fix for this.

 

Thanks.

 

8da0e4ebcae94f30afe89136d45a144f.jpg

 

Sent from my XT1254 using Tapatalk

 

 

Link to comment
Share on other sites

Quote

 

Proactive Alert Starting & Charging Service Message Identifier SAC004

Notice: The Service Technician MUST complete every Step of this diagnostic.

 

Notice: For Corvette testing, Go to Step 4.

  1. Verify the battery cable connections are clean and tight. Refer to Battery Inspection/Test in SI.
  2. Turn OFF the ignition. Measure the battery voltage at the battery terminals. The voltage should be between 12.0–15.0 V
    • If not within the specified range, refer to Battery Charging in SI.
    • If within the specified range, Go to Step 3, for Corvette Go to Step 4.
  3. Test for less than the specified value between the positive battery cable at the battery and the positive battery cable at the M64 starter motor as the ignition is placed in the CRANK/START position. Refer to Measuring Voltage Drop in SI.
    • If greater than the specified value, replace the positive battery cable. Refer to Battery Positive Cable Replacement in SI.
    • If less than the specified value, Go to Step 6.
  4. Test for less than 0.5 V between terminal A X6 at the X50D Fuse Block – Battery and terminal A X6 at the X50A Fuse Block – Underhood as the ignition is placed in the CRANK/START position.
    • If greater than the specified value, replace the positive battery cable. Refer to Battery Positive Cable Replacement in SI.
    • If less than the specified value, Go to Step 5.
  5. Test for less than 0.5 V between terminal A X6 at the X50A Fuse Block – Underhood and terminal A X2 at the M64 Starter Motor as the ignition is placed in the CRANK/START position.
    • If greater than the specified value, replace the starter solenoid cable. Refer to Starter Solenoid Cable Replacement in SI.
    • If less than the specified value, Go to Step 6.
  6. Test for less than 0.5 V between the negative battery cable and the M64 starter motor case as the ignition switch is placed to the CRANK/START position. Refer to Measuring Voltage Drop in SI.
    • If greater than the specified value, replace the negative battery cable. Refer to Battery Negative Cable Replacement in SI.
    • If less than specified value replace the Starter. Refer to Starter Replacement in SI.
  7. No other action is required as the Service Message will automatically clear once the starting system is serviced properly and the vehicle is operated over a number of ignition cycles. Other on board DTCs may have set if the vehicle experienced a low voltage condition.

    Use the scan tool to clear ALL DTCs prior to releasing the vehicle to the Customer.

  8. Submit the correct Bulletin Only Labor Operation for this repair: 4080598*.

 

 

Edited by newdude
Link to comment
Share on other sites

I've got 2 of these emails now.

From that diagnostic above it looks like they would only replace a battery cable at most.

Do you guys think if I just disconnect the battery for an hour or so that might help reset things, and maybe then the OnStar emails might stop?

Link to comment
Share on other sites

a 2015... aren't you still under warranty? If so, its up to your dealer to diagnose and fix. Unless its more inconvenient for you to drive to a dealer than work on it yourself, I'd make them figure it out. At least then if it fails later, you have a service record for it. If you temporarily fix it yourself and then the starter goes out next year, then what?

Link to comment
Share on other sites

54 minutes ago, aseibel said:

a 2015... aren't you still under warranty? If so, its up to your dealer to diagnose and fix. Unless its more inconvenient for you to drive to a dealer than work on it yourself, I'd make them figure it out. At least then if it fails later, you have a service record for it. If you temporarily fix it yourself and then the starter goes out next year, then what?

 

OP has a 2017. 

1 hour ago, 15_silverado said:

I got an email from OnStar about a possible problem with my starter motor or it's connection, for my 2017 5.3L Silverado.

 

Link to comment
Share on other sites

I think the 20+ computers on these rigs just have a brain fart at times.  Just like your home PC needs a reboot on occasion.  My 2017 has had a few quirks - chime going of every 30 seconds for no reason.  Pulled over, turned it off and restarted.  Never repeated since.  Turn signal blinking but no noise.  Same fix - pulled over - rebooted - never repeated since.  On a 1,200 mile trip a couple weeks ago the temperature display stuck at 32 degrees thru multiple starts over a couple days while daytime temp was aver 60 degrees - finally reset....

 

 

:sigh:

Edited by Krusty
Link to comment
Share on other sites

20 hours ago, Krusty said:

I think the 20+ computers on these rigs just have a brain fart at times.  Just like your home PC needs a reboot on occasion.  My 2017 has had a few quirks - chime going of every 30 seconds for no reason.  Pulled over, turned it off and restarted.  Never repeated since.  Turn signal blinking but no noise.  Same fix - pulled over - rebooted - never repeated since.  On a 1,200 mile trip a couple weeks ago the temperature display stuck at 32 degrees thru multiple starts over a couple days while daytime temp was aver 60 degrees - finally reset....

 

 

:sigh:

The outside temperature display sticking is a common problem thru 3 generations of GM trucks now.  It is programmed to always instantly show a lower temp but not to show a raised temp unless a number of parameters are met, as the engineers don't want the display to show a raised temp just because of underhood engine heat. 

 

Press the recirc and A/C buttons at the same time, and the temp display will instantly update, and as a result, your auto HVAC system will work much better. 

Edited by MaverickZ71
Link to comment
Share on other sites

  • 1 year later...

I received this , I changed battery and problem was solved. 

 

Your 2017 Chevrolet Suburban detects a battery, starter or connection issue. The battery is needed to start the vehicle. To avoid a situation where you can't start your vehicle, please schedule service with your preferred service provider as soon as possible, so they can determine if your Battery or Starter needs replacing. You can still drive your Chevrolet but it may become harder to start. And if the battery does fail, you will not be able to start the vehicle. Please disregard this message if your vehicle is already in for service (as this could be a false notification if the vehicle is in for service and the service being performed affects this component).

Service Code SAC005

If you would like additional information please contact Member Assistance at 1.866.237.3601.

 
Link to comment
Share on other sites

  • 2 years later...

Old thread but figure worth a shot.  I have a 2018 Silverado and have gotten the e-mail for SAC004 twice.  Seems to start fine.  When it says check power at the starter terminal are they saying disconnect it and see what happens?

 

Edit:  oh yeah...  The one with the lug. Not trying that in crank while under the rruck... 

Edited by Brian Maxwell
Details
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share



×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.