**solved** Remote Start on 08 LTZ

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

02Z71Raven

Full Access Member
Joined
Jun 1, 2021
Posts
117
Reaction score
117
I had to replace the remotes when I bought this 08 Tahoe LTZ. I got the ones with the remote start button and I have the feature enabled in the systems settings but I get no results from the remote no matter what I've tried.

Is there a simple guide on how this works or a common problem with this feature or am I just incapable of operating simple machinery?
 

B-train

Full Access Member
Joined
Sep 12, 2022
Posts
2,707
Reaction score
4,913
In order to remote start a newer GM, you need to press the LOCK button and then press and hold the START button for about 3 seconds, or until it starts. If the feature is truly enabled, that is the procedure.

If there are any active CEL codes, it won't remote start FYI.

Best of luck!
 

swathdiver

Full Access Member
Joined
May 18, 2017
Posts
21,287
Reaction score
30,224
Location
Treasure Coast, Florida
I had to replace the remotes when I bought this 08 Tahoe LTZ. I got the ones with the remote start button and I have the feature enabled in the systems settings but I get no results from the remote no matter what I've tried.

Is there a simple guide on how this works or a common problem with this feature or am I just incapable of operating simple machinery?

The remotes have to be programmed to the vehicle. The process is explained in your owner's manual. It can also be done with a Tech-2.
 

Joseph Garcia

Elite Member
Supporting Member
Joined
Aug 2, 2018
Posts
10,285
Reaction score
14,892
Or, you can take it to your local locksmith, and for about $25 and 10 minutes, you'll be good to go.
 
OP
OP
02Z71Raven

02Z71Raven

Full Access Member
Joined
Jun 1, 2021
Posts
117
Reaction score
117
So I'm understanding this correctly, the remotes are programmed and will work for everything except remote start. Doors unlock and lock, auto lift gate and hatch work, but not remote start.
And you're saying that the remote start feature won't work unless it's programmed by some other means?
 
OP
OP
02Z71Raven

02Z71Raven

Full Access Member
Joined
Jun 1, 2021
Posts
117
Reaction score
117
In order to remote start a newer GM, you need to press the LOCK button and then press and hold the START button for about 3 seconds, or until it starts. If the feature is truly enabled, that is the procedure.

If there are any active CEL codes, it won't remote start FYI.

Best of luck!
That may be the reason. I had a cylinder misfire due to collapsed lifter when I got the truck. I don't know if I've tried it since I had the motor rebuilt.
I'll try it again, thanks for the feedback.
 

swathdiver

Full Access Member
Joined
May 18, 2017
Posts
21,287
Reaction score
30,224
Location
Treasure Coast, Florida
So I'm understanding this correctly, the remotes are programmed and will work for everything except remote start. Doors unlock and lock, auto lift gate and hatch work, but not remote start.
And you're saying that the remote start feature won't work unless it's programmed by some other means?
Nope. When a new remote is introduced to the car and needs to be programmed, all of the other remotes have to be re-programmed to the car to work as well. If the remote unlocks door but does not start the car, that is another issue. A CEL will disable remote start.
 
OP
OP
02Z71Raven

02Z71Raven

Full Access Member
Joined
Jun 1, 2021
Posts
117
Reaction score
117
Nope. When a new remote is introduced to the car and needs to be programmed, all of the other remotes have to be re-programmed to the car to work as well. If the remote unlocks door but does not start the car, that is another issue. A CEL will disable remote start.
That was it. The CEL was on before and now it is not and the remote start works perfectly.
As always, you guys win again. Thanks for the help!
 

cmoye

TYF Newbie
Joined
Apr 24, 2025
Posts
1
Reaction score
0
Newbie here. I have an 08 Denali and the remote start doesn't work. What is CEL?
 

rdezs

Full Access Member
Joined
Nov 6, 2023
Posts
1,308
Reaction score
2,402
CEL is your check engine light, indicating the system has stored a trouble code.
 

Forum statistics

Threads
137,723
Posts
1,990,412
Members
102,713
Latest member
briannorris
Back
Top