Aswin16 bad luck.

There is a forced activation modus that a found in the Dutch manual.

First put transmission in P and activate parking brake.

Steps 1 to 5 have to be completed in 60 seconds.

1: Put contact in ON (smart key push Start button twice WITHOUT applying the parking brake).

2: Put transmission in P and apply the accelerator pedal twice.

3: Put transmission in N and apply the accelerator pedal twice.

4: Put transmission in P and apply the accelerator pedal twice.

5: Start engine with brake pedal applied.

This will force the engine to come on for example for emission testing.

The engine will stay in forced mode until switched off.




Hope this will help.

 

Thanks Flyby. Im going to try that next time i run into this issue. Aswin, if that doesn't work try unplugging the 12V battery for a minute. System may need to be reset.

 

@Flyby Awesome suggestion! Left it at the dealership by the time you responded. They tried the above steps to no avail. Even the lead EV/plug in technician was not able to zero in on the cause. This was the first time he was seeing such issue. Would know more next week.

@Dirttrack I tried your suggestion and doesn’t seem to help in my case. But great to know these in case I bump into similar issues in the future.

 

Does it come on after you run out of battery for EV?

 

Didnt try that. But tried every possible way forcing the gas engine on including flooring the gas pedal and nothing works. It’s with the dealer now

 

Personally I wouldn’t have been worried unless it didn’t work after you ran out of battery. The computers work in mysterious ways. For me, I can’t figure why the gas engine comes on sometimes, no heater, no AC, and driving like an old lady. But I figure something in the car’s logic tells it that is what is best for the car in that situation. I’m guessing it only amounts to a gallon of gas one way or the other over a year. So I just drive and try not to think about it. I figure smart engineers know more about it than I do. 😉

 

I've had that happen twice and still not sure why. Apparently it has to do with the inverter on the ev battery. I lowered the amp on my charger and that has seemed to keep it from happening again. Hasn't happened on a 240 but only a 110 charge so my gut is cord may have something to do with it but no proof.

My dealership told me that I can make the fix by unplugging the 12v battery (literally just screwing off the tightener should do it) and then re-plugging in a few minutes later. Basically re-sets the vehicle since the computer works off the 12v.

 

Which thing dit it fix, the gas engine not coming on or the gas engine coming on when in pure ev mode?

 

I have the same issue. It's likely a hybrid controller issue. My issue typically starts at cold temperatures when idling or stopped at a long light. Biggest issue is there is no power because the engine runs in EV mode like its electric assist mode that's why there is no power. Best fix I've had is to pull over, shut the car off then start it up again.

 

This is a repeating problem that Hyundai will not address.
I had this engine no start on my 2022 Santa Fe hybrid on a fridged cold night 18 deg. after I did a pre start with the app.
I got to the vehicle and the engine was NOT running, but the interior had warmed a bit.
Accessories worked, interior lights ECT, so I buckled up, started with the dash button and began to drive. The engine did not start. Got out of the parking lot, and headed down the road at 45 mph, looked down and the hybrid battery was draining super fast.
Then all heck broke lose !
I lost acceleration power, the dash warning HYBRID FAIL, PULL OVER NOW ! along with the horrendous loud alarm !
I pulled over as soon as I could. The hybrid battery was depleted and after a few seconds the dash lit up with the 12v battery warning too. I shut everything off ! Called bluelink , yacked with them as they couldn't even locate me, for 10 min, as we were trying to get info, I reached down and hit the dash start button to see if everything was truly dead... And low and behold the Gas engine started !
I had to sit there for 10 more min, as the vehicle would not drive, no hybrid battery power , until it charged to about 1/4 hybrid battery. I told bluelink I was going to try and make it to the next gas station so they could find me and tow the vehicle to the dealership. It drove but very sluggish, with little power. Got to the station pulled in . Put it in park, tried to rev engine some to get alternator on gas engine to charge hybrid and 12v batteries. Bluelink finally arranged for tow, to be there in 70 minutes. I got hybrid battery up to 50 percent,after half an hour, drove around the parking lot several times, and it was operating somewhat normal, but not charging past 50 percent.
I decided to drive a mile to another station, to see how it felt. Everything was now working okay, and the hybrid battery showed more charge over 50 percent, so I headed home. Made it. Called Hyundai corporation and dealership next day. Corp. Said I had to take it in to get it diagnosed, although the five hours of research I did that night showed Hyundai had no clue, and no DTC were ever reported by others.
All the kid at the dealership reported was that I added a courtesy light under the dash, and this hybrid / no engine start was my fault, and gave me some SB that says you shouldn't use things like insurance plug in dongles in the OBD port. The light I put in is wired into a spare fuse location in the fuse box.
Corporate washed their hands after this.
Vehicle has 35k miles, courtesy light was installed the week I bought the vehicle. Not the issue!
I think either the 12v battery was low from the cold and accessories running during pre start warm up, or the hybrid system computer brain didn't work properly because of the cold. Don't know.
Asking owners if you have this condition. Report all pre conditions here and to the NTSB in a formal complaint, as I have done. At the time several had been reported. So far the condition has not repeated, temps have warmed up outside.
As for me , it was the last straw. Hyundai won't be getting any more of my business for their lack of service, and doing anything, other than trying to blame me , a mechanic with 40+ years experience with cars and aircraft.

 

This is a repeating problem that Hyundai will not address.
I had this engine no start on my 2022 Santa Fe hybrid on a fridged cold night 18 deg. after I did a pre start with the app.
I got to the vehicle and the engine was NOT running, but the interior had warmed a bit.
Accessories worked, interior lights ECT, so I buckled up, started with the dash button and began to drive. The engine did not start. Got out of the parking lot, and headed down the road at 45 mph, looked down and the hybrid battery was draining super fast.
Then all heck broke lose !
I lost acceleration power, the dash warning HYBRID FAIL, PULL OVER NOW ! along with the horrendous loud alarm !
I pulled over as soon as I could. The hybrid battery was depleted and after a few seconds the dash lit up with the 12v battery warning too. I shut everything off ! Called bluelink , yacked with them as they couldn't even locate me, for 10 min, as we were trying to get info, I reached down and hit the dash start button to see if everything was truly dead... And low and behold the Gas engine started !
I had to sit there for 10 more min, as the vehicle would not drive, no hybrid battery power , until it charged to about 1/4 hybrid battery. I told bluelink I was going to try and make it to the next gas station so they could find me and tow the vehicle to the dealership. It drove but very sluggish, with little power. Got to the station pulled in . Put it in park, tried to rev engine some to get alternator on gas engine to charge hybrid and 12v batteries. Bluelink finally arranged for tow, to be there in 70 minutes. I got hybrid battery up to 50 percent,after half an hour, drove around the parking lot several times, and it was operating somewhat normal, but not charging past 50 percent.
I decided to drive a mile to another station, to see how it felt. Everything was now working okay, and the hybrid battery showed more charge over 50 percent, so I headed home. Made it. Called Hyundai corporation and dealership next day. Corp. Said I had to take it in to get it diagnosed, although the five hours of research I did that night showed Hyundai had no clue, and no DTC were ever reported by others.
All the kid at the dealership reported was that I added a courtesy light under the dash, and this hybrid / no engine start was my fault, and gave me some SB that says you shouldn't use things like insurance plug in dongles in the OBD port. The light I put in is wired into a spare fuse location in the fuse box.
Corporate washed their hands after this.
Vehicle has 35k miles, courtesy light was installed the week I bought the vehicle. Not the issue!
I think either the 12v battery was low from the cold and accessories running during pre start warm up, or the hybrid system computer brain didn't work properly because of the cold. Don't know.
Asking owners if you have this condition. Report all pre conditions here and to the NTSB in a formal complaint, as I have done. At the time several had been reported. So far the condition has not repeated, temps have warmed up outside.
As for me , it was the last straw. Hyundai won't be getting any more of my business for their lack of service, and doing anything, other than trying to blame me , a mechanic with 40+ years experience with cars and aircraft.

Is this a PHEV?