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Vibration at 65mph

1604Shop
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1604Shop New Member

1604Shop

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I have a new 2020 Silverado High Country Diesel 2500 and am experiencing a vibration, from day 1. This appears to happen most notably at 65mph. I have had original tires balanced 4 separate times at the dealer and at a private shop. And the dealer just replaced the tires.  The problem appears to be reduced but still exists. I did test drive another new 2020 at the dealer and it did the same thing. Has anyone else experienced this on the new 2020 model (I see it frequently posted on older models) and do you have any suggestions for a fix. My truck now has under 1000 miles.

Tomato Enthusiast

Tomato

Posted
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There are 2 TSB's on this. The first calls for Road Force Balancing of the tires, and the second is for a power steering module reprogram. Mine was fixed with replacement of 1 front tire.  There are lots of posts on this.

MTU Alum Enthusiast

MTU Alum

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Trucks built before November need the steering calibration updated.  This is a service bulletin on this.  Was this done? Sometimes the dealer forgets to clear the adapts in the steering system after the reflash.  

 

#iworkforGM 

  • 8 months later...
bh069me1 Enthusiast

bh069me1

Posted
Posted
On 2/18/2020 at 1:35 PM, MTU Alum said:

Trucks built before November need the steering calibration updated.  This is a service bulletin on this.  Was this done? Sometimes the dealer forgets to clear the adapts in the steering system after the reflash.  

 

#iworkforGM 

You happen to know that tsb # would you ?

2020 trail boss 6.2/10 same vibration 2cnd set of tires, local dealer says everything is fine

MTU Alum Enthusiast

MTU Alum

Posted
Posted
14 hours ago, bh069me1 said:

You happen to know that tsb # would you ?

2020 trail boss 6.2/10 same vibration 2cnd set of tires, local dealer says everything is fine

LD trucks don't apply to this HD TSB

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