There are 3 owner-reported engine complaints for the 2020 Alfa Romeo Giuliain NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
vehicle had a head gasket blown and oil to coolant mixture due to head gasket and oil cooler failure this has will now be the 3rd engine 4th time I have to bring the car for warranty regarding the headgasket car has been in the dealership for months at times.
Around January 30, 2023 (need to verify the exact date). My vehicle went on limp mode, the engine light went on plus an additional warning light. I was driving on highway 99 when my car started to stall. It felt like the car put itself in neutral mode. It was frightening as it happens randomly & suddenly after being able to drive 60+ mph. It wouldn’t pick up speed. Driving 5 mph. It was frightening as I was far from the exit & the vehicles behind were honking and 1 swerved, thankfully the driver was able to change lanes. I tried my best to move to the slow lane, but it was extremely difficult as the car would not pick up speed. I finally made it to the slowest lane (no emergency lane avail.) I was anxiously hoping for an exit. It took a while, kept on my hazard lights. When I finally found an exit completely stalled, then after turning it on and off it picked up a bit of speed. Tt felt like it was on neutral. I parked and attempted to call a tow truck. The car kept struggling and it was raining that day. After hours, I was able to get assistance to take it home. I did call Alfa Romeo, which they towed it to their nearest dealership. They ran test but did not find anything wrong with the engine. They did find other things like the coolant leaking. They did fix those things. However, they did keep my vehicle for over 2 months! And I had to request the inspection because they did not send it or placed inside the vehicle like they normally do. The vehicle has only done it one additional time since then but this time it was minor, while trying to leave my house. I turned it off for a few minutes and then everything was fine. I have also notified Alfa Romeo of the infotainment turning off since I had this vehicle. The engine/throttle error (limp mode) is dangerous and scary for the us the driver and the drivers around us. On may 24, 2023 I received an email from Alfa Customer Retention Specialist, offering to buy back the vehicle due to Civil Code 1793.2(d)(2)(B).
2020 ALFA ROMEO GIULIA. CONSUMER WRITES IN REGARD TO ILLIMINATED SERVICE ENGINE LIGHT. THE CONSUMER STATED WHEN THE SERVICE ENGINE LIGHT APPEARS OTHER FUNCTIONS ARE INOPERABLE START/STOP AND D-N-A (PERFORMANCE MODES) AND COULDNT PASS NYS EMISSIONS AND SAFETY INSPECTION.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026