Home · 2024 Ram Promaster · Complaints
These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.
3 of 12 complaints match · Driver assistance · clear filters
I feel unsafe and frustrated, the vehicle is experiencing, frequent uncommanded braking events, false activations of the automatic emergency braking system and lane keeping warnings with random self steering adjustments.I have reported this to my Ram service center in Shakopee, MN multiple times. They stated that there was nothing they could do about it because of some publication from RAM. They told me to escalate the concern.
NHTSA ODI 11745107
Adaptive Cruise Control (ACC) randomly quits working, produces a yellow warning light and digital message saying it has failed and service required. This failure happens at completely random times and last for hours to days and then randomly starts working again. This began happening after purchase in 2024 and was first sent into the dealership for repair in May 2024. The problem persisted with additional dealership visits in: June 2024, Sept. 2024, Jan. 2025, May 2025, Sept. 2025, Oct. 2025, Jan. 2026. Now my warranty is expired and dealership is refusing to work on the vehicle. Stellantis eventually put out TSB 08-065-25 which was completed Oct. 2025 and it did not fix the problem. All repairs have been software and radar alignment related, no hardware for parts replaced. My vehicle is available for inspection. My safety has been put at great risk in at least two different ways: first it randomly stops working which leaves the vehicle no longer being controlled, second, I have an expectation of additional security from purchased equipment specifically following distance and lane management. I lose this additional layer of safety for hours or days when the system fails. The problem has not been reproduced but has been confirmed via OBD2 reader. Vehicle has been to 7 documented Stelantis dealerships.
NHTSA ODI 11736213
Adaptive Cruise Control (ACC) randomly quits working, produces a yellow warning light and digital message saying it has failed and service required. This failure happens at completely random times and last for hours to days and then randomly starts working again. This began happening after purchase in 2024 and was first sent into the dealership for repair in May 2024. The problem persisted with additional dealership visits in: June 2024, Sept. 2024, Jan. 2025, May 2025, Sept. 2025, Oct. 2025, Jan. 2026. Now my warranty is expired and dealership is refusing to work on the vehicle. Stellantis eventually put out TSB 08-065-25 which was completed Oct. 2025 and it did not fix the problem. All repairs have been software and radar alignment related, no hardware for parts replaced. My vehicle is available for inspection. My safety has been put at great risk in at least two different ways: first it randomly stops working which leaves the vehicle no longer being controlled, second, I have an expectation of additional security from purchased equipment specifically following distance and lane management. I lose this additional layer of safety for hours or days when the system fails. The problem has not been reproduced but has been confirmed via OBD2 reader. Vehicle has been to 7 documented Stelantis dealerships.
NHTSA ODI 11736215
Working with the data? Download all 12 complaints as CSV · fetched from NHTSA July 10, 2026