Chevrolet Express 2016–2020 — technical service bulletin
Bulletin PIP5800 · NHTSA communication 10193437 · issued Apr 7, 2021
Technical service bulletin
communication type
Equipment
component
2016–2020
model years
10
vehicle entries
Official summary
This Preliminary information communicates some customers may comment that the vehicle exhibits a lack of power when driving up grades or after the vehicle has been idling for long periods of time in high ambient temperatures (90 degrees or above). This condition is more noticeable when the vehicle is outfitted with heavy work equipment on the back such as work boxes or ambulance bodies. When the ambient temperature drops below 90 degrees you may notice that the condition is less noticeable or eliminated altogether. This condition is caused by the high ambient temperatures 90 degrees effecting
Vehicles covered
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.