Jeep Renegade Forum banner

1 - 20 of 53 Posts

·
Registered
Joined
·
471 Posts
Discussion Starter #1
Recently we have been having random starting issues. We get in depress brake pedal and press the start button. Dash lights up but the engine does start. Sometimes the start is delayed several seconds. Other times is takes several attempts to get it fired up.

Once started it runs fine, no warning lights on dash. It usually only happens once a day, most often in the morning or sometimes if it has been parked several hours.

Has anyone else experienced similar issues?

17 Sport with 6,000 miles.
 

·
Registered
Joined
·
228 Posts
Happened to me once or twice. The brake peddle was really stiff so I ended up pushing down real hard and it started. I never saw any kind of warning light or anything.
 

·
Super Moderator
Joined
·
1,432 Posts
I'd check the brake pedal switch.

How does pressing the starter with the keyfob do anything? :confused:
 

·
Registered
Joined
·
58 Posts
I'd check the brake pedal switch.

How does pressing the starter with the keyfob do anything? :confused:
I think there is some sort of identification chip at the top of the keyfob. It is used typically when the battery within the fob is dead, and you have to unlock the door with the physical blade key. Then you push the start/stop button with the top of the fob, and it should fire up after a couple seconds - in theory...
 

·
Registered
Joined
·
228 Posts
I'd check the brake pedal switch.

How does pressing the starter with the keyfob do anything? /forum/images/smilies/confused.gif
I think there is some sort of identification chip at the top of the keyfob. It is used typically when the battery within the fob is dead, and you have to unlock the door with the physical blade key. Then you push the start/stop button with the top of the fob, and it should fire up after a couple seconds - in theory...
Weird. I almost want it to happen to me again so I can try that!
 

·
Super Moderator
Joined
·
1,432 Posts
I think there is some sort of identification chip at the top of the keyfob. It is used typically when the battery within the fob is dead, and you have to unlock the door with the physical blade key. Then you push the start/stop button with the top of the fob, and it should fire up after a couple seconds - in theory...

Yes, there is an RFID chip in the key.
That's what it always interrogates before allowing the car to start.
Whether you're pushing the start button with your finger or not.
Holding it near to the antenna (which is located in or around the ignition start button)
may help but pushing the starter with in? Nah, sounds like WooWoo.
 

·
Registered
Joined
·
681 Posts
Nah, sounds like WooWoo.
I've heard this process on other makes too. It's a short range system. For normal, non-keyless cars the chip reader is in the steering column so it can read the fob when the key is in the ignition, when it is automatically in range.

For keyless cars the battery operated fob works over a longer range, so only needs to be inside the car - in your pocket for example. When the fob battery dies it has to revert to the passive, short range mode, but for this the driver has to ensure the fob is in range of the reader. Putting the reader near the start button and saying to push the button with the fob is a simple way to ensure this happens - otherwise ... well, you know what people are like with any instruction that's more than a few words long :)
 

·
Registered
Joined
·
244 Posts
Yes, there is an RFID chip in the key.
That's what it always interrogates before allowing the car to start.
Whether you're pushing the start button with your finger or not.
Holding it near to the antenna (which is located in or around the ignition start button)
may help but pushing the starter with in? Nah, sounds like WooWoo.
yes such a "woowoo" that they put instructions for this procedure in the owners manual. Not to mention this was told to me by the dealer , they told me when i bought it that sometimes other electronics screw up the signal, causing a no start. first thing to try is to push in start button with fob, as it pairs and resyncs the rf signal.
no start.JPG
 

·
Super Moderator
Joined
·
1,432 Posts
Fair enough.

But pushing the start button with the actual key fob doesn't physically do anything.
There's no physically connection required. It's wireless.
(They could also instruct you to be whistling "Il Canto degli Italiani" whilst pressing the start button
for a similar effect. :p)


The reason I queried it was because the sales guy specifically showed me the process at
hand over and there was no talk of physically pressing the button with the fob.


But it's plainly in the manual. (And I still call it Woo.)
 

·
Registered
Joined
·
681 Posts
It's not the physical contact that is needed. The 'wireless' probably has a range of just a few inches, so the part of the fob with the chip needs to be in the zone. The instructions in the book are the simplest way to ensure that this happens, since saying things like "Hold the key in your hand and press the start button with a bent finger of the same hand, so the key is close to the start button." is just getting daft.
 

·
Registered
Joined
·
1,084 Posts
Recently we have been having random starting issues. We get in depress brake pedal and press the start button. Dash lights up but the engine does start. Sometimes the start is delayed several seconds. Other times is takes several attempts to get it fired up.

Once started it runs fine, no warning lights on dash. It usually only happens once a day, most often in the morning or sometimes if it has been parked several hours.

Has anyone else experienced similar issues?

17 Sport with 6,000 miles.
You've got some great advice here, priell3. Are you thinking you'd like to have this looked at by a Jeep dealer? Our team is available via direct message and would be happy to help with this process.

Jasmine
Jeep Social Care Specialist
 

·
Super Moderator
Joined
·
1,432 Posts
It's not the physical contact that is needed. The 'wireless' probably has a range of just a few inches, so the part of the fob with the chip needs to be in the zone. The instructions in the book are the simplest way to ensure that this happens, since saying things like "Hold the key in your hand and press the start button with a bent finger of the same hand, so the key is close to the start button." is just getting daft.


It's just my inner engineer screaming, "No Way Is That A Technical/Physical Requirement."

Eventually it will become an internet myth that all keyless cars can be started, in an emergency, by pushing the start button with the keyfob.
Just wait 'n' see. Whilst Googling theres a YouTub Vid of a Renegade owner complaining it doesn't work because she's doing it with the bare mechanical key. Sometime you just need to step back and ask, "Is that really true?"
 

·
Registered
Joined
·
471 Posts
Discussion Starter #15
You've got some great advice here, priell3. Are you thinking you'd like to have this looked at by a Jeep dealer? Our team is available via direct message and would be happy to help with this process.

Jasmine
Jeep Social Care Specialist

I am going to call the dealer nearest me tomorrow and try to get an appointment first thing Tuesday morning.
 

·
Registered
Joined
·
471 Posts
Discussion Starter #16
Called the dealer and the service department suggested pushing the button with the fob. The Electronic Throttle Control warning lamp on the dash comes on when it fails to start.

Taking it in 8 a.m. tomorrow.
 

·
Registered
Joined
·
1,084 Posts
Called the dealer and the service department suggested pushing the button with the fob. The Electronic Throttle Control warning lamp on the dash comes on when it fails to start.

Taking it in 8 a.m. tomorrow.
Keep me updated on what you hear, priell3. We're available via direct message and are happy to provide an additional layer of assistance if needed.

Jasmine
Jeep Social Care Specialist
 

·
Registered
Joined
·
471 Posts
Discussion Starter #19
So here is what they said:

a radio frequency module was changed started with no issues we let it sit outside and get cold again started with no issues brought it in Ran codes...no codes appeared
I will be picking it up tomorrow morning.
 
1 - 20 of 53 Posts
Top