2018 Ram 1500 · symptom sheet
A/C blows warm or the compressor fails
- 28owner reports
- 38,472median miles
- 0involved a crash
Newest report Jul 16, 2026 · checked Oct 2, 2026
28 of the 662 complaints on this car describe A/C failure.
Tick what matches of 28 reports
A/C failure on other 1500 years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2015, 2017, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026.
What this problem usually is
Most A/C complaints start the same way: the fan still blows, but the air coming out of the vents is warm or only a little cool. Some owners get cold air that fades after a while, and others hear a noise from the compressor before it quits. It's rarely a safety problem on its own, which is also why it seldom gets a recall.
What got replaced
Few of these reports name the part that was replaced.
Recalls and investigations
No recall on this problem covers the 2018 model year as of Oct 2, 2026.
When it happens
Too few of these reports state a mileage to give a range.
Is this a known problem?
The manufacturer has sent NHTSA 9 service bulletins or notices for the 2018 Ram 1500 that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
Air Suspension Inoperative And Or Compressor Freeze Up Or Sticking In Cold Weather.
CONDENSER, Air Conditioning CONDITION 1: If it is determined that the A/C compressor does not engage due to a refrigerant leak at the receiver/drier plug on the A/C condenser, order the receiver/drier plug kit P/N 68447796A$ and follow the repair instructions ...
Air Suspension Components Star Parts Catalog has been updated to show individual service parts for the compressor assembly. This will allow service technicians to repair the root cause without over repairing the system.
CONDENSER, Air Conditioning If it is determined that the A/C compressor does not engage due to a refrigerant leak at the receiver/drier plug on the A/C condenser, order the receiver/drier plug kit P/N 68447796A$ and follow the repair instructions included on ...
5 more on the 2018 Ram 1500 page.
What owners wrote
“Uconnect is erratic Heated seats turning on, unable to call 911, climate control turns on and off or changes temp from hot to AC turning on. Radio changes stations. Apps flipping from on to another. Unable topair phone to uconnect.”
Filed Sep 29, 2025
“Unconnect / head unit malfuctions in a way that makes driving unsafe. Climate control is unusable, gps malfuctions, radio stations change, phone calls people, mutes/unmutes, hangs up. AC/Heat alternates and turns on and off on it's own. It's incredibly distracting.”
Filed Apr 30, 2025
“With in only a month and a half of buying the vehicle the suspension system goes to exit/entry height and will not increase in height even though the compressor is on”
Filed Sep 10, 2024
“The touch screen in my vehicle, that controls everything from heat& A/C, GPS, radio, heated seats/steering wheel, and also connects with my phone. It automatically changes constantly without warning causing me to have to switch back or turn off what it may have turned on. It changes my directions when I use it to go to unfamiliar places forcing me to briefly take my eyes off the road to navigate the screen.”
Filed Sep 30, 2022
Should you keep driving it?
This page can't tell you that. 0 of 28 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Taking it to a shop? How to describe this problem so it gets found
Other problems on this car
- Infotainment, screen or backup camera fails 151 reports
- Engine stalls or loses power while driving 67 reports
- Power steering cuts out or goes heavy 59 reports
- Diesel fuel system or injector problems 52 reports
- Brakes grind, pulse or wear early 46 reports
- Fuel pump failure 34 reports
- Check engine light or misfire 32 reports