This TSB worked for my Tacomas surging issues.
View attachment 25600
The dealership did this following update.
T-SB -0125-18
Septerrber19, 2018
Senile Bulletin
Engine Idle Surge With Steering Input
Seance
Category Engine/Hybrid System
Market USA
Section Engine Control
Applica billty
YEAR(S)
2016-2017
MOTH.(S)
Tacoma
ADUT101iIAL IM:0RM ATION
VDS(s): AZ5CN, BZDN, CZ5AN, DZ.8N,
EZ5CN. FZ5C)N. GIAN. HZ5BN. RZCN.
SZ5AN
Introduction
Some 2016-2017 model y-ar Tacoma vehicles equipped whh a 2GR-FKS engin. may exhibh
an engine idle surge with steering input. The surge is most noticeable under the
folk)wing candHions:
. The vehicle is operated at an idle creep speed.
. The steering wheel is turned (i.B., backing out of a garage ar executing parldng lot maneuvers).
. The engine coolant temperature is low.
Fallow the Repair Procedure in this bulletin ta address this condition.
After having the update done, I can say the issue has been about 99% fixed. And my truck actually feels pretty normal when I drop it into reverse.
I hope this info helps ya.