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Warning message while towing

jowatt
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jowatt New Member

jowatt

Posted
Posted

Today while towing my travel trailer with my 2022 chevy 1500 lt duramax, I got this message display on the dashboard (dic). Warning vehicle/trailer weight may exceed combined gross vehicle weight rating. Any idea what cause this warning message to display? I know the weight of the truck and trailer are way below the gcwr, same for the tongue weight. Thanks for your input.

GMCustomerService Senior Enthusiast

GMCustomerService

Posted
Posted
On 7/8/2022 at 11:12 PM, jowatt said:

Today while towing my travel trailer with my 2022 chevy 1500 lt duramax, I got this message display on the dashboard (dic). Warning vehicle/trailer weight may exceed combined gross vehicle weight rating. Any idea what cause this warning message to display? I know the weight of the truck and trailer are way below the gcwr, same for the tongue weight. Thanks for your input.

This is certainly not what we like to hear, jowatt.  Please know, customer satisfaction is extremely important to us. Our team would be more than happy to take a closer look into the concerns with your 2022 Chevy 1500 LT Duramax. To do so, please send an email to [email protected] with ATTN: jowatt/GM Trucks in the subject line.

Please include your contact information, VIN, a brief description of your concern, and the name of your preferred dealership. We look forward to hearing from you. To learn more about GM’s privacy policy, please visit https://www.gm.com/privacy-statement.html.
 
Privacy Statement | General Motors
Your privacy is important to General Motors. This Privacy Statement addresses the personal information GM collects and how GM handles that personal information.
www.gm.com
 

  • 10 months later...
CKC New Member

CKC

Posted
Posted

I get the same message on my dash information center. I went to the scale and noticed I still had 2500 lbs before I hit the 15,000 GCWR. I also have a 2022 Silverado LT Crew Cab with he 5.3 engine. I have pictures of my weight at the scale with trailer and my information plate from the door of the truck. In case you have issues I will list my weights below:

 

Steer Axle: 3200 LB

Drive Axle: 3240 LB

Trailer Axle: 6060 LB

Gross Weight: 12500

 

My information plate states:

GAWR FRT 3800 LBS

GAWR RR 3800 LBS

GCWR 15000 LBS

 

Any answers on why this is happening? I will also email you the information.

swathdiver Senior Enthusiast

swathdiver

Posted
Posted

Do you guys have a leveling suspension out back by chance?  The computer knows it should squat so much at such weight and may be the case.  TFL Truck saw this message but I do not remember if it was for GM pickups.  We're still running leaf springs and regular shocks right?  

repairman54 Enthusiast

repairman54

Posted
Posted (edited)

I wonder if it sensed being ''close'' to the limit in GM's mind to cover their butts, so it set the warning. Lots of folks towing over their head so it may default to an early warning for the ''average'' owner, not experienced folks who actually scaled their rig. 

I'm wondering how system figures this out. Calculates throttle input, road speed, what gear it's in and factors all of that together? 

Edited by repairman54
  • Like 1
Trainwreck68 Enthusiast

Trainwreck68

Posted
Posted

I got the same message with my 2023 Silverado 1500 with the 6.2 and my GVWR is 15000 and the total weight of what I'm towing plus the truck cargo and passengers is 13200. 

  • Like 1
Rockwood Fan New Member

Rockwood Fan

Posted
Posted

I also received this message on my 2022.5 GMC 1500 with the 2.7.  I know for certain my trailer is not over gross with the weight of the truck. I didn’t receive this type of message until a recent technical update was done. I’m assuming when I last took my truck in for a recall fix. At that point they did an update to the trailer brake that previously was not working. I typically get the code when accelerating, such as from a stop sign at an incline or when the wind is dragging, or when on the interstate even at lower speeds. 
I am very concerned this is to void a future warranty claim. The very reason I purchase new vehicles. 
 

I certainly follow the manufacturer guidelines such as higher octane gasoline but I’m definitely concerned that GM is looking for an excuse. 

GMCustomerService Senior Enthusiast

GMCustomerService

Posted
Posted
On 5/21/2023 at 8:08 AM, CKC said:

I get the same message on my dash information center. I went to the scale and noticed I still had 2500 lbs before I hit the 15,000 GCWR. I also have a 2022 Silverado LT Crew Cab with he 5.3 engine. I have pictures of my weight at the scale with trailer and my information plate from the door of the truck. In case you have issues I will list my weights below:

 

Steer Axle: 3200 LB

Drive Axle: 3240 LB

Trailer Axle: 6060 LB

Gross Weight: 12500

 

My information plate states:

GAWR FRT 3800 LBS

GAWR RR 3800 LBS

GCWR 15000 LBS

 

Any answers on why this is happening? I will also email you the information.

This is certainly not what we like to hear, CKC.  Please know, customer satisfaction is extremely important to us. Our team would be more than happy to take a closer look into the concerns with your 2022 Chevrolet Silverado. To do so, please send an email to [email protected] with ATTN: CKC/GM Trucks in the subject line.

Please include your contact information, VIN, a brief description of your concern, and the name of your preferred dealership. We look forward to hearing from you. To learn more about GM’s Privacy Policy, please visit https://www.gm.com/privacy-statement.html. The information you provide may be monitored and recorded and is subject to the GM Privacy Statement.
 
Privacy Statement | General Motors
Your privacy is important to General Motors. This Privacy Statement addresses the personal information GM collects and how GM handles that personal information.
www.gm.com
 

redwngr Senior Enthusiast

redwngr

Posted
Posted

Traded for a '23 which has this feature, so thought I'd look up what the manual says about it. 

(I haven't towed yet...)

 

 

Gross Combined Weight (GCW) Alert

 

If equipped, the GCW Alert can display a message in the Driver Information Center (DIC), indicating that the estimated
combined weight of the vehicle and trailer may exceed the vehicle’s GCWR, under certain circumstances. See “Gross Combined Weight Rating” above.

 

The vehicle does not actually measure the loaded weight of your vehicle or trailer.

It uses vehicle data to estimate these weights after you begin a trip.

 

The alert will not activate unless:
. The feature is turned on in the trailering application. See Trailering App pg 321.
. The vehicle-trailer combination have been used enough together for the software to estimate the combined vehicle and trailer weight.
. The estimated weight could exceed the vehicle’s maximum GCWR. 

 

 

and from the Trailering App section (app info starts on page 321, this is from pg 327) 

 

image.png.73e058c222661ee79caa992d91c352b7.png

  • 3 weeks later...
bhowatt Enthusiast

bhowatt

Posted
Posted

I Just bought a ‘22 Silverado Refresh 1500. Before installing air springs I towed the same trailer with the same weight (well under GCVW and conventional trailer weight) and had no alerts. Installed air springs and now I get the warning (conditions unchanged except air springs). I am assuming that they have something to do with the calculations the computer is making. 🤷‍♂️

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