2021 Chevrolet LOW CAB Forward 6500: common problems
The maker issued 20 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 20
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Equipment | 0 | 0 | 2 |
| Fuel system | 0 | 0 | 2 |
| Powertrain | 0 | 0 | 1 |
| Steering | 0 | 0 | 1 |
| Structure | 0 | 0 | 1 |
| Other | 0 | 0 | 14 |
Comparison
What to check before buying
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it
- This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance
- This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
- PI to help diagnose A/C concern
- This Preliminary information communicates an issue with an OTA pending message still displayed after an…
This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.
- Pi created to provide GM dealers with information on gathering information for projection issue
- This preliminary information communicates information about how to determine if a wheel and tires size…
- This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a…
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
- This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic…
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC'ss
- This PI advised dealer technicians of possible causes of diesel fuel contamination in gasoline powered…
This PI advised dealer technicians of possible causes of diesel fuel contamination in gasoline powered vehicles and advises of warranty direction.
- This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic…
- This information bulletin advised the tech of possible use of low fuel quality and the possible…
This information bulletin advised the tech of possible use of low fuel quality and the possible ramifications in performance in regards to the customers concerns.
NHTSA lists 20 bulletins for this year; the 12 newest are shown here.
Other years of this model
- LOW CAB Forward 6500 20167 sources
- LOW CAB Forward 6500 20177 sources
- LOW CAB Forward 6500 2018327 sources
- LOW CAB Forward 6500 201910 sources
- LOW CAB Forward 6500 202012 sources
- LOW CAB Forward 6500 202215 sources
- LOW CAB Forward 6500 202324 sources
- LOW CAB Forward 6500 202427 sources
- LOW CAB Forward 6500 202528 sources
- LOW CAB Forward 6500 202655 sources
Questions and answers
What are the most common problems with the 2021 Chevrolet LOW CAB Forward 6500?
There are no owner complaints in the NHTSA data for this year; the data comes from 20 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2021 Chevrolet LOW CAB Forward 6500?
NHTSA lists 20 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2021 Chevrolet LOW CAB Forward 6500 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2021 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.