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Acceleration & cruise control

2021 Ram Promaster Acceleration problems

Owners have filed 2 complaints about the 2021 Ram Promaster's acceleration & cruise control with NHTSA - 2% of all its complaints, most recently on May 7, 2026. Unintended acceleration, surging, throttle problems and cruise or adaptive cruise faults.

Complaints
2
Recalls
0
Crashes
0
Fires
0
Injuries
0
Deaths
0

Acceleration complaints

Transmission & drivetrainAcceleration & cruise control

12/2020 First the TPS sensor failed at 1,000 miles and almost caused an accident. Would not go over 25mph, was shifting hard, and the service engine light was on. Verified and replaced at dealership. Second, the rear view camera stopped working while backing up and almost caused an accident - no back windows - major safety issue. Replaced by me as they have no replacement for it even though its under recall. No warnings. Third, the transmission was shifting hard and fell out while I was driving on the freeway...

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at 55,000. Damaged transmission and crankshaft and joints. Verified and replaced at dealership. No warnings, no lights Fourth, the transmission bolt was found loose, hard shifts, and has an internal breakdown at 71,000 miles. Verified first by independent shop - they tightened the bolt for me and is now sitting at the dealership waiting on another transmission that has been verified and approved under warranty. No warnings, no lights

Filed Incident Power train · Vehicle speed control · Unknown or otherNHTSA 11736324
Acceleration & cruise controlEngine & cooling

While driving on a straight highway, no wind, no weather, 65 mph, both hands on wheel, the van started revving and lost power. I pulled over with engine still running. There were no codes or warning light. I tried to drive again. It continued to rev and not get up to speed. I pulled over again and shut it down. I waited a few minutes and then started it. When pulling back on freeway it ran normal with no more issues for another 700 miles. I took it in to the Dodge dealer on 1-13-23 to have it checked. They couldn't find anything. I'm reporting this because it was a very scary and dangerous incident. I was lucky to have a place to pull over and not be in heavy traffic.

Filed Incident Vehicle speed control · Unknown or other · EngineNHTSA 11502719

Ram Promaster acceleration complaints by year

Promaster acceleration problems, every year

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Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data

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