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Good day: We have not read anywhere or seen addressed in the 2021 Trailblazer Owners Manual a requirement to periodically run the Trailblazer engine for a period of time when towing the Trailblazer 4 wheels down behind a motor home over long distances. Does any such requirement exist to avoid damage to the engine and possibly voiding the Trailblazer warranty? If so, at what mileage intervals must the engine be run and for how long? Thank you in advance for your respective responses.
 

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2021 TB Zues Bronze Activ
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I have read nothing about running the motor. I do think you can only tow the 4x4 models with all wheels down. FWD has to be on a dolly.
 

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2021 Chevy Trailblazer RS AWD
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94 Posts
I have towed my AWD RS about 2,500 miles. I start and run 'til warm in the morning and at the end of the day. Nothing read or instructed, it's just what I do. So far, all good.
 

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2021 TB Zues Bronze Activ
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What is reasoning behind running it?
 

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2021 Chevy Trailblazer RS AWD
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94 Posts
In my opinion to warm and circulate trans fluid before and after being dragged down the road.
 

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2021 TB Zues Bronze Activ
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I assume the internals are moving when being pulled? Would not that pulling warm the fluids?
 

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2021Trailblazer RS AWD Scarlet Red Metallic
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I assume the internals are moving when being pulled? Would not that pulling warm the fluids?
Towing in N does not circulate trans fluid or warm it up. It has to be running in order for the trans pump to circulate fluid. I think occasionally starting it just helps keep the battery charged.
 
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