Remote Start not working/check engine light

[Trailboss91]

Tried remote starting my Trailboss this morning and it did not work, got in the truck and the check engine light is on now. Anyone else run into this? 

[2016 Sierra Owner]

Remote start won't work if the CEL is on or the code is cleared.  The remote start may have caused the CEL or another reason.

[newdude]

Normal operation.  Fix the check engine light, the remote start will work again. 

[Eric Sepulveda]

Me today. 1-21-21 appt w chevy as I am only 31k miles in

[Chevygirl84]

So this just happened to me. Fixed itself in 24 hours but still had me upset. It’s still a brand new truck. So hopefully this doesn’t happen again. Any suggestions to keep it from happening again?  A fuse change? 

[CamGTP]

You'll have to contact the dealership to see why the check engine light came on. You have a warranty after all on a new truck.

[redwngr]

5 hours ago, Chevygirl84 said:

So this just happened to me. Fixed itself in 24 hours but still had me upset. It’s still a brand new truck. So hopefully this doesn’t happen again. Any suggestions to keep it from happening again?  A fuse change? 

Take it in and see if they can find the computer has stored the cause of the CEL.

[blckblt]

Go to dealer to get reason for code.  

 

FYI--low fuel (warning light on) also will not allow a remote start.  I know this isn't your problem but just wanted to share/add.

[redwngr]

11 hours ago, blckblt said:

Go to dealer to get reason for code.  

 

FYI--low fuel (warning light on) also will not allow a remote start.  I know this isn't your problem but just wanted to share/add.

I haven't tried remote start with low fuel.

 

The OM warns against using remote start if fuel is low --- but doesn't include low fuel in the list of things that prevent remote start. 

 

 

2021 Manual:

 

Do not use remote start if the vehicle is low  on fuel. The vehicle may run out of fuel.

 

The vehicle cannot be remote started if:
. The RKE transmitter is inside the vehicle or if the key is in the ignition.
. The hood is not closed.
. There is an emission control system malfunction and the lamp is on.
. The ignition is in any mode other than off.
. The hazard warning flashers are on.
. Two remote starts or a remote start with an extension have been used.
. The vehicle is not in P (Park).

 

The engine will turn off during a remote vehicle start if:
. The coolant temperature gets too high.
. The oil pressure gets low.

[blckblt]

17 minutes ago, redwngr said:

I haven't tried remote start with low fuel.

 

The OM warns against using remote start if fuel is low --- but doesn't include low fuel in the list of things that prevent remote start. 

 

 

2021 Manual:

 

Do not use remote start if the vehicle is low  on fuel. The vehicle may run out of fuel.

 

The vehicle cannot be remote started if:
. The RKE transmitter is inside the vehicle or if the key is in the ignition.
. The hood is not closed.
. There is an emission control system malfunction and the lamp is on.
. The ignition is in any mode other than off.
. The hazard warning flashers are on.
. Two remote starts or a remote start with an extension have been used.
. The vehicle is not in P (Park).

 

The engine will turn off during a remote vehicle start if:
. The coolant temperature gets too high.
. The oil pressure gets low.

I could be thinking of my last truck. I’ll try it next time my fuel light is on. 

[JAshworth03]

Battery being low also throws.  Has happened twice to me. 

[blckblt]

On 4/6/2021 at 9:15 PM, blckblt said:

I could be thinking of my last truck. I’ll try it next time my fuel light is on. 

My truck ended up being able to remote start with low fuel (2020 Trailboss w/ 6.2) so I must of been remembering my Ram.  I would assume that my 2021 Sierra is the same.

[SteveP45]

Low vehicle battery charge?   Will it affect/disable remote start.   Have a 2019 Silverado Z71.   Key fob batteries are brand new.   Dealership telling me the hood latch may be defective.   I have a hard time believing it would be bad in 3 years.

 

I have code reader and no codes stored to prevent  a remote start.   When I open and close the hood with the code reader hooked up it immediately reports the correct status of open or closed.

 

Noticed when remote start does not work and I put the code reader on it and it showed the battery at 40%.    Put optima 400 digital charger on the battery and after the charge and conditioning cycle, the remote start may work twice.     Alternator is charging fine.   
 

plan to replace the oem agm battery on Monday

 

Update 12-13-2022

 

The battery was just load tested by an large independent battery manufacturer on 12/13/22 while i watched and they said the battery tested like a new battery.   My concern was the battery may not have been holding a charge even though you could manually start  the vehicle just fine.    The reason I did this was something I found in researching the remote start failure which indicated if the vehicle battery was below a certain charge %, remote start would be disabled.

 

Update 12-15-2022

 

Took vehicle in for 3rd visit.    On the 2nd (previous) visit I mentioned to the service tech on 1 occasion I had encountered a brief "hood open" message when manually starting the vehicle but it quickly disappeared.   He was able to recreate the quick false hood open message and even though no codes were generated or stored, determined the hood latch was flakey and needed to be replaced so they ordered one and I went back for a 3rd visit a week later to get the hood latch replaced.   I also had them do an oil and filter change since the weather here is too brutal to do it outside.

 

It appears the new hood latch has resolved the problem so far and was the old latch was the electronic gremlin cause to all of the other false messages I have encountered.

 

The dealership said they have encountered a handful of faulty hood latches.

 

GM/Chevrolet need to examine and redesign the hood latch or switch to a better manufacturer of the part.

 

 It is bad when the original hood latch which just turned 3 years old on December 6, 2022 failed.

 

I doubt the hood has been opened and closed more than 36 times in the 3 years (to change oil or to /check oil and other fluid levels at approximately once a month.    

 

The truck just turned 50k and still has the original oem agm battery and the original oem Goodyear Wrangler tires.

 

I intend to get new tires within the next month.  

  

In any event, will give an update in a few weeks.

 

P.S.  Posters on this forum tend to run down "dealerships" and their service and prices,   Go find another dealer then.   

 

There is a Chevrolet dealer much closer too me, which I absolutely refuse to deal with or even visit. 

So I purchased this vehicle new  in another town and county which is a 35 minute drive for me each way.

 

The dealer I originally purchased this vehicle from has been fantastic.  They never charged me a dime for the previous two diagnostic visits because they could not fix the problem.

 

Their tire rotation fee (if you do not have a coupon for a free one) is lower than most other places.   It is why my tires are in good shape at 50K.  They are focused on customer satisfaction.    They do not want you to leave from your service visit unless you can rate them essentially 10 out of 10 (i.e. extremely satisfied).    They did not have a problem or objection  when I asked if I could walk back and discuss the problem with the service technician.   In fact it was one of these discussions which led the technician to suspect the hood latch as the gremlin/culprit.  Due to lack of generated or stored codes, it was the only real source of information for him.

 

They also gave me the old defective hood latch as I requested.  I will do some testing on it this winter when I get time.
 

Edited December 15, 2022 by SteveP45
Update after 3rd service visit to Chevrolet dealership

[GMCustomerService]

On 12/11/2022 at 11:42 AM, SteveP45 said:

Low vehicle battery charge?   Will it affect/disable remote start.   Have a 2019 Silverado Z71.   Key fob batteries are brand new.   Dealership telling me the hood latch may be defective.   I have a hard time believing it would be bad in 3 years.

 

I have code reader and no codes stored to prevent  a remote start.   When I open and close the hood with the code reader hooked up it immediately reports the correct status of open or closed.

 

Noticed when remote start does not work and I put the code reader on it and it showed the battery at 40%.    Put optima 400 digital charger on the battery and after the charge and conditioning cycle, the remote start may work twice.     Alternator is charging fine.   
 

plan to replace the oem agm battery on Monday

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