Some 2023-2024 Colorado, Canyon; and 2024 Blazer EV models may have a turn signal condition and, on 2023-2024 Colorado, Canyon models, a rattle sound may be heard coming from the steering column.
Turn Signal Over Correcting
When using the turn signal in either direction, instead of self-canceling, the turn signal may switch to the opposite direction for a few flashes. (Fig. 3)
Fig. 3
If this condition is found, reprogram the Body Control Module (BCM). Be sure to record the SPS Warranty Claim Code.
For more details, refer to Bulletin #24-NA-176.
Steering Column Bracket
In addition, on some 2023-2024 Colorado and Canyon models, there may be a rattle sound coming from the steering column. The rattle sound may be due to a loose-fitting turn signal/trim mounting bracket.
To check the steering column bracket, extend the steering column to its furthest position and separate the instrument panel steering column upper and lower trim covers using a small, plastic trim tool. (Fig. 4)
Fig. 4
With the upper trim cover removed, wrap the turn signal bracket with an appropriately sized tie strap and secure it tightly. (Fig. 5) Trim off any extra length of the tie strap and reinstall the upper trim cover.
Fig. 5
Refer to Bulletin #24-NA-235 for additional information.
– Thanks to Jonathan Johnson
These bulletins have addressed the majority of the vehicles exhibiting this concern. If the condition still exists after performing both of these repairs, please contact TAC.
Have done both of these repairs and the condition is still happening.