Why is my Envoy not Starting?

Asked by Bob Apr 05, 2022 at 01:44 PM about the 2004 GMC Envoy 4 Dr SLT 4WD SUV

Question type: Maintenance & Repair

I got an Envoy I replaced battery,alternator,fuel
filter,thermostat,spark plugs and coils now when I
try to turn it on nothing.I get in and the security light
is flashing after I try to turn it on nothing and the
security light turns off also but I open and close the
door and the light starts again? CAN ANYBODY
HELP PLEASE

1 Answer
307,255

Gene answered 2 years ago

Security system is turned on, check the owners manual on how to deactivate it. If it won’t turn off then a dealer will need to reset the system. Some locksmiths can also do this and they will be cheaper.

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