2023 Volkswagen Jetta: check engine light

Filed Sep 3, 2026 · Fuel system · TX

The cars check engine light came on randomly at the top of the year but kept going away and returning. After getting it checked out, the code was P0456 for an evap leak. Owner took the car to VW and was quoted ~$3,200 for the repair and asked the service team how was it even possible for this to happen to a newer car, and they said it was a common issue. If the issue is common, it should have a recall because the risks of this ongoing is engine damage and failure.

Filed Apr 30, 2026 · Engine · GA

About 6 months after I bought my car the check engine light came on, took to vw still under Warranty. And they said it was just a harness on sale about 4 months later, it came back on and they kept my car for a week. And when I got my car back about 2 to 3 weeks later, it came back on again, and they cound't figure it out and said its something wrong with the emmission and now it's back on so I don't know what's wrong with it, I took it to a different shop and they said they couldn't read the codes and I have to take it to Volkswagen dealership. Car is new and fail emmission.

Filed Sep 6, 2024 · Engine · 43,000 miles · CA

The contact owns a 2023 Volkswagen Jetta. The contact stated while operating the vehicle, the check engine warning light remained illuminated. Upon inspection, it was discovered that the engine coolant reservoir was empty. The contact added coolant to the coolant reservoir, but one week later the failure reoccurred. The vehicle was taken to the local dealer who diagnosed the vehicle and determined that engine coolant had leaked into the head gasket and that the head gasket and sealant needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 43,000.

Filed Aug 19, 2024 · Engine · CA

The check engine light would come on due to it misfiring on cold starts, dealer seems to have fixed it by replacing the coil packs. Many others also have this issue and haven’t been able to get it fixed. This is a serious issue that seems to be only happening on 2023 and newer model year Jetta GLIs.

Filed Aug 15, 2024 · Brakes, Fuel system · AZ

What component or system failed or malfunctioned, and is it available for inspection upon request? The components that failed or malfunctioned include the rear brake system and the EVAP (Evaporative Emission Control) system of my 2023 Volkswagen Jetta SE 1.5T FWD. Both components are available for inspection upon request. How was your safety or the safety of others put at risk? The safety risks include premature wear of the rear brakes, which could lead to reduced braking efficiency or failure, especially under emergency braking situations. The EVAP system malfunction poses an environmental risk by potentially releasing excessive emissions, and it could also lead to engine performance issues, including stalling or hesitation during acceleration, which may cause hazardous driving conditions. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, the issues with both the rear brakes and the EVAP system have been reproduced and confirmed by the service departments at two authorized Volkswagen dealerships. Despite multiple repair attempts, the problems have not been fully resolved. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? The vehicle has been inspected multiple times by Volkswagen service departments, but no inspections have been conducted by the police or insurance representatives. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? Yes, for the EVAP system, the check engine light illuminated repeatedly, indicating a malfunction. The brake issues were not accompanied by warning lamps but were noticeable through audible grinding noises and reduced braking performance, which started occurring within the first few thousand miles after purchasing the vehicle. The brake issue was first reported to the dealer when the vehicle had less than 10,000 miles.

Filed Feb 22, 2024 · Driver assistance, Engine · CA

This is now the second time this has happened on my brand new 2023 Jetta SE. The vehicle only has 1831 miles on it. The fault happens when the car is being driven after approx. 15 minutes. EPC light, Check Engine Light, and Yellow Warning Light illuminate. Also sounds like a misfire when limping off the road. Codes read at dealer are P0304, P0363, P1D74, and P1D75. All of these codes relate to Cylinder 4 misfire. Car is driven only at highway speeds, since it is a commuter car. This happened on 2/16/2024 and 2/22/2024. I attached PDFs of the Service Invoice from the first instance. I also attached a PDF of a the federal safety agency file containing a list of VW vehicles that are having the same issue, with the same engine.