2020 RAM 4500: common problems
The maker issued 568 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 568
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 177 |
| Equipment | 0 | 0 | 146 |
| Powertrain | 0 | 0 | 59 |
| Engine and cooling | 0 | 0 | 55 |
| Fuel system | 0 | 0 | 51 |
| Engine | 0 | 0 | 42 |
| Backover prevention | 0 | 0 | 36 |
| Visibility | 0 | 0 | 31 |
| Structure | 0 | 0 | 29 |
| Service brakes | 0 | 0 | 21 |
| Exterior lighting | 0 | 0 | 18 |
| Parking brake | 0 | 0 | 13 |
| Wheels | 0 | 0 | 13 |
| Lane departure | 0 | 0 | 8 |
Comparison
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- RADIATOR - ENGINE COOLING
- SENSOR - TURBOCHARGER SPEED
- CORE – HEATER
- SWITCH – HEADLAMP
- Backup Camera Poor Image Quality Inspection
- OUTLET - AIR CONDITIONING & HEATER
- BEARING - CRANKSHAFT THRUST and KIT
- Outside Power Fold Rearview Mirror Noise Or Loose At Pivot
Mirror Contacts Door Window Glass In The Folded Position.
- For Dealer awareness, HD truck, eliminate 1 of 2 M8 Joints for Sidestep bracket to Body Attachment, Bolt…
For Dealer awareness, HD truck, eliminate 1 of 2 M8 Joints for Sidestep bracket to Body Attachment, Bolt and rivet (06102165AA, 06511062AA) per TCR # 402632, CN 80403-T18
- On Cummins diesel applications that are for 2019 and newer the bpro part 1BP00507AB can on occasions…
On Cummins diesel applications that are for 2019 and newer the bpro part 1BP00507AB can on occasions create a check engine light. In these situations, it is recommended to use the appropriate Mopar air filter…
- Replace K1 Clutch / Input Shaft Assembly Customers must experience a Malfunction Indicator Lamp (MIL)…
Replace K1 Clutch / Input Shaft Assembly Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P0731-00 - Gear 1 Shift…
- Squeak Or Squawk Noise Coming From Either Side Door Of The Vehicle, It Could Be Just One Door Or More
The Noise Can Be Present In Either The Upper Or The Lower Hinge.
NHTSA lists 568 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2020 RAM 4500?
There are no owner complaints in the NHTSA data for this year; the data comes from 568 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2020 RAM 4500?
NHTSA lists 568 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 2020 RAM 4500 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 2020 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.