Chevrolet Colorado 2023–2024 — technical service bulletin
Bulletin N24-245213 · NHTSA communication 11014589 · issued Mar 3, 2025
Technical service bulletin
communication type
Unknown OR Other
component
2023–2024
model years
4
vehicle entries
Official summary
Certain 2023-2024 model year Chevrolet Colorado / Silverado 1500 and GMC Canyon / Sierra 1500 vehicles equipped with a 2.7L engine (RPO L3B), may have an Engine Control Module (ECM) that does not sufficiently control fuel injector flow rate under certain driving conditions. This update will complete the remedy for GM Recall No. N242452130 and no additional steps are needed after a successful update. You will also receive a letter providing additional details regarding this issue. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected beha
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.