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 Incorrect Ratio (This DTC will set during a key cycle and shifting into Drive). Customers must also comment on the following: ● The transmission will not shift into or out of 1st - 4th gears. 5th and reverse gears are still available This bulletin involves replacing the K1 clutch and possibly the K1 input shaft drum sub-assembly. These repairs are to be performed only if the vehicle is inoperable due to K1 clutch failure
full bulletin at NHTSA ↗2022 RAM 4500 powertrain problems
moderate 3 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Complaints
3
Recalls
0
Avg fix
$2,500
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering powertrain on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
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 Incorrect Ratio (This DTC will set during a key cycle and shifting into Drive). Customers must also comment on the following: ● The transmission will not shift into or out of 1st - 4th gears. 5th and reverse gears are still available This bulletin involves replacing the K1 clutch and possibly the K1 input shaft drum sub-assembly. These repairs are to be performed only if the vehicle is inoperable due to K1 clutch failure
full bulletin at NHTSA ↗Driveline Vibration. Prop Shaft Diagnostic Information.
full bulletin at NHTSA ↗Aisin K1 Clutch/Input Shaft Assembly Replacement XW1 Warranty Extension 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 Incorrect Ratio. NOTE: This DTC will set during a key cycle and shifting into Drive. Customers may also comment on the following: ● The transmission will not shift into or out of 1st - 4th gears. 5th and reverse gears are still available. This bulletin involves replacing the K1 clutch and possibly the K1 input shaft drum sub-assembly.
full bulletin at NHTSA ↗D-25-18 (XW1) Aisin K1 Clutch/ Input Shaft Assembly - Select 2022 RAM Trucks (D2/DD/DP)
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 3 most recent
I was driving my truck and when i came to a stop and tried to put it in reverse, I did not have reverse. After several attempts of moving the gear lever there was a loud clunk, then I had reverse. Then when I then put it into drive it would not move. The vehicle has 35,500 miles. Dealer believes its the K1 snap ring in the aisin transmission. It is still at the dealer and they believe it will…
The Aisin transmission lost 1-4 forward gears while towing a trailer. The vehicle would not go forward only would move in reverse. We were going through a weigh station at time of failure in Florida, while our home base is in Michigan. There are many failures with this part. It is the K-1 clutch pack fails then forward gears do not work. Dealerships and Stellantis are both fully aware of the…
We purchased a brand new 2022 RAM 4500 truck 07/25/2022 , at the beginning of November the truck broke down and needed a brand new transmission . It took the dealer two months to install the new transmission , we picked up the truck from the dealer December 28th , 2022. Today 02-15-2023 truck broke again in the the middle of the highway and is not drivable again with transmission not working .…
Had powertrain trouble with your 2022 RAM 4500?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2022 RAM 4500?
It's a documented issue but not catastrophic. 3 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2022/RAM/4500.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.