A noise under my new truck

Hello, since I bought my 2020 Tacoma SR5 I'm felling this small little and single(knock)(like driving over a manhole cover) noise under the truck after being parked(P).When I move it out is when I hear it. It's only one time and after turning the steering wheel either way with the truck moving, after that it is gone. Have you all heard about it? I thought it was the hand brake with a late release but it happens even if I don't use it.

 

Welcome to The Forum!

 

Spare tire loose?

 

how many miles

when was truck last on a lift................thorough inspection done

recent work or mods ??

 

New 2020 SR 2.7 4x4 AT with 1.9K miles now. Build date 5-20' ... No issues at all ...

 

You stop, put the brake on or put it in park or in gear, the rear end is preloaded. When you start it to go later, you cause the drive shaft to move slightly back the other way which causes the clunk.

Stick or auto?

 

It's brake pad slap. It's common on these trucks. You'll usually notice it when going slowly the first time you apply the brakes in a direction you're going (i.e. forward or reverse). It's normal, although I'm not sure why. Basically the pads have a little room, but just enough, to shift when the brake is applied or sometimes released. I suspect it also goes away slightly with heat expansion. You'll only notice it once per drive since the rotor and brake pressure hold the pads in place during your trip.

Try it with forward and reverse.

 

Take it to the dealer.

FWIW, my 2 Gen had a very similar “knock”
It was a loose lower control arm bolt.

 

it is auto, good point but this is happening after moving it couple feet not right away after.

 

since I hate dealing with dealers I try to lift it in my garage and check this out, if find something loose I will take it then, thanks

 

Knock knock!!

 

only 1000 miles, It has been like that since I got it, no lift or work done. thanks

 

it is tight, thanks