2012 Dodge RAM 1500: check engine light

Filed Sep 9, 2026 · TX

Dodge Ram 1500 2012 model, vehicle randomly turns off without warning while driving. It is as if someone turns off the key no warning lights before , no check engine lights , after is shuts down no codes shown, so far able to coast out of the way and restart vehicle with key fob once in neutral. this is a safety issue and according to my research others have had the same issue. but no diffident resolve. Dealership is currently attempting to diagnose the issue. You need to check into this before someone is killed. I am sure by now Ram dodge is aware of the problem but not doing anything about it.

Filed Mar 20, 2026 · Engine · 80,000 miles · WI

The contact owns a 2012 Dodge Ram 1500. The contact stated that while driving approximately 65 MPH, the check engine warning light was flashing, and the vehicle unexpectedly decelerated. While depressing the accelerator pedal, the vehicle was shaking and continued decelerating. The vehicle was pulled over to the side of the road. A certified mechanic was contacted and advised the contact to drive the vehicle approximately 45 MPH with the hazard lights flashing to the repair shop. The mechanic diagnosed a misfire in cylinder #2, lifters failure, causing the camshaft failure, which allowed metal debris to enter the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 80,000.

Filed May 13, 2025 · Airbags, Electrical · 160,000 miles · FL

The contact owns a 2012 Ram 1500. The contact stated that the check engine, air bag, and the fuel pump relay failure warning lights were illuminated. The contact stated that the exterior lights failed to operate as needed, and the vehicle occasionally failed to start. Additionally, the contact stated that the vehicle stalled while driving. The vehicle was taken to an independent mechanic who diagnosed the vehicle and determined that the TIPM was faulty and needed to be replaced. The local dealer was not contacted. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 160,000.

Filed Sep 26, 2023 · Engine · 125,000 miles · OH

The contact owns a 2012 Ram 1500. The contact stated while driving 55 MPH, the vehicle started losing motive power. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that the cam shaft and lifters needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 125,000.

Filed Sep 7, 2023 · Electrical, Fuel system · MD

Van shuts off while driving on the highway When attempting to restart no fuel is provided to the fuel rail Engine cranks but remains with a no start condition Negative battery terminal must be disconnected to reset the PCM. After reconnection and reset of PCM vehicle will start. No diagnostic trouble codes are provided through OBD port. No check engine light eliminates Issue has happened numerous times and is documented on the internet through various chat boards

Filed Jan 20, 2023 · Electrical · 125,000 miles · NC

The contact owns a 2012 Ram 1500. The contact was unable to start the vehicle. The contact stated that the check engine warning light was illuminated. The contact was able to restart the vehicle after 10 attempts. The contact took the vehicle to an independent mechanic and was informed the Totally Integrated Power Module (TIPM) needed to be replaced. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer had been informed of the failure. The failure mileage was approximately 125,000.

Filed Dec 5, 2021 · Engine · OH

Camshaft lobe warn down from, from faulty rocker arm roller (needle bearing) (there is no to very little compression in cylinder 5), apparently engine is lubricated "by splash oil design" and people smarter then me have diagnosed that it is a design flaw.(having to do with the well and the height of the bores that accept the rocker arms) The engine only had 118,000 miles when the engine light came on, resulted in a severe knocking sound and misfiring. I expected a well taken care of motor with regular oil changes would last 200,000 miles. My choices are to rebuild the motor and or replace, both are costly. Thanks for taking the time to read my complaint. [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

Filed Mar 23, 2021 · Engine · 129,000 miles · VA

Tl* the contact owns a 2012 ram 1500. The contact stated that the vehicle failed to accelerate forward driving at various speeds. The check engine warning light illuminated and the vehicle began to misfire and shudder. The vehicle was taken to an independent mechanic where it was diagnosed that the engine coils needed to be replaced. The vehicle was repaired however, the failure recurred. No dealer was contacted. The manufacturer was notified of the failure and informed the contact that the VIN was not under recall. The failure mileage was approximately 129,000.

Filed Apr 1, 2020 · Acceleration, Engine · 1,000 miles · TX

In the morning while starting truck no problem, all of a sudden while driving on street the truck just turned off. It had happened before on 3 other occasions but the first one was far apart then the other 2 in the last 2 weeks. When I got on the freeway I noticed a had to push harder on the gas pedal to gain speed but it felt like it was hard to press on and I wasn't getting to the speed (60mph) so I just took it slowly to gain speed. That lasted about a week. The following week after trying to gain speed at about 45-50 MPH the truck started shaking really bad so I let go of the gas pedal and took it slow again. So I took it to my mechanic to get a basic tune up since I had just gotten an oil change he would just do spark plugs on3/5/20 to see if it would solve the problem. After explaining to him what it was doing he told me right away that it's probably the camshaft and hydraulic lifters worn out with my truck mileage of 108,000 it was unbelievable because I always make sure my truck is up to date with everything. By this time no check engine light had turned on. So I drove it another week and half with the same issues; finally on 3/16/20 the check engine light turned on and I took it to get it checked at autozone and oreilys and both computer finding were code p0385 which is a misfire on cylinder 5 which is hydraulic lifter, camshaft, and possible ignition coil gone bad. I decided to not use my truck until I took it to the mechanic which I did on 03/24/20. His finding were the worn out camshaft and hydraulic lifter on cylinder 5. I did some research on the internet and of course there is a lot of people complaining about the same problem and it starts with trucks from 2011 and some with only of 58,000 miles. This is very costly to repair when you expect a truck to last a long time especially if you take care of it.

Filed Jan 29, 2020 · Engine · 106,000 miles · OK

Tl* the contact owns a 2012 ram 1500. The contact stated while attempting to start the vehicle, the vehicle hesitated to start. Once the vehicle was started the vehicle idled rough. The contact stated the engine vibrated abnormally. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, where he was informed the number 3 cylinder had a failure. The local dealer randall ford located at 5500 rogers ave, fort smith, ar 72903, sent a representative to the independent mechanic to diagnose the vehicle. The contact was informed that the camshaft, lifters, cylinder, water pump case and exhaust manifold gasket needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was 106,000.

Filed Oct 17, 2019 · Airbags · 81,000 miles · TX

Tl* the contact owns a 2012 ram 1500. While driving 15 MPH, the driver's side air bag popped without warning. After the air bag popped, the check engine and air bag warning indicators illuminated. There were no injuries. The contact took the vehicle to richardson chrysler jeep dodge ram (1321 n central expy, richardson, tx 75080, 214‑329‑0862) and was informed that there was an unknown transmission recall on the vehicle, but nothing in relation to the air bags. The contact associated the failure with the federal safety agency campaign number: 15v459000 (air bags); however, the VIN was not included. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 81,000.

Filed Aug 15, 2019 · Transmission · 91,000 miles · AZ

Tl* the contact owns a 2012 ram 1500. While driving 45 MPH, the contact heard an abnormal noise coming from the front driver's side of the motor. The contact stated that the check engine warning indicator illuminated. The vehicle was taken to jim click chrysler dodge ram (located at 850 w auto mall dr, tucson, az 85705, (520) 292-3850) where it was diagnosed that cylinder three misfired. The vehicle was also taken to an independent mechanic who stated that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified. The failure mileage was 91,000. *bf consumer stated this failure in the motor is apparent in multiple reports across a multitude of forums. The collapse of lifters is a severe safety issue and chrysler knows it! They refuse to accept responsibility over their known defect! These motors must be called for the safety of all!