Vehicle specs.

USA. 2017. 60k mi. 4cyl 2.0 gasoline turbo. 25t. Automatic transmission. Push button start.

Main Problem: Car will not crank, nor start.

The car display on the driver dash turns on for 1-2 seconds before the car turns off completely. Brake becomes extremely firm.

Ignition works and stays on. Instrument panel lights up when the start button is pressed without pressing the brake pedal. "THEFT" light display goes away. Check engine light comes on, then goes away. Dash Instrument cluster /electronics/infotainment console/radio will display/play without issue. The driver display reads, "SOS system not available" followed by "Press brake + when starting" when ignition.



Things I have done so far.

1. OBD2 reader has shows no codes.
2. Unplugged the battery from the trunk, touch the negative and positive connection ports for 10 seconds and left the battery alone for 10-30 minutes several times before reconnecting.
3. Trunk Car battery is fine, terminal connection is fine. Load tested and it has plenty of CCA life left.
4. Replaced batteries on both key fobs.
5. Fuses are intact. They are fine when I use my multimeter to test.
6. With the Ignition on, I pressed and held the "maintenance assistance" for 10 seconds but there are no lights blinking. It looks like it is not responding/dead.

From google searches, Potential Jag specific problems? . Telemetric module?

1. Telemetric module: Bad battery voltage. Low/dead battery in Telematics module as a cause of failure? I don't know where this would be in this car (Rear passenger side?).

General automotive Problems?

1. Starter motor failure. What is the best way to get access to the starter motor? Below the engine? Through the driver side wheel well?
2. Starter motor connection corrosion.
3. Gear selector button
4. Low Coolant. I have noticed that the coolant level is quite low, maybe it leaked and got onto the connections and caused some shorts/corrosions?

 

You say the battery has plenty of CCA but you don’t say how much it has. The AGM’s installed from factory come with 1,000 CCA. I’ve seen some very unhappy cars that show 500CCA.

 

If it were my XE, I would put a smart charger on the battery and ensure the battery can take a full charge. These cars run into big big problems if the battery is not really happy.

 

789CCA of 850 that came when this vehicle was purchased a few months ago
13.04v after charge with Norco 10amp

Starter works fine.

I don't know how else to proceed with this car. At this point I think it is not mechanical and more electrical, and I don't have special software to troubleshoot this.

 

So the next step is to either try an Autel scan tool and see what faults are saved or flatbed the car to a JLR specialist, independent or dealership.

 

I recall someone saying that a dead battery in the telematics module stops the car from starting. Maybe this was in the F-type forum.

 

Yes I have seen this as well. I believe the Telematics in that post was in the driver side, rear pillar that could be accessed by removing the rear seat. But at this point I've spent a few hours on it and I'll. just have it shipped to the dealer. Unfortunately there is VERY few videos/resources that discuss trouble shooting / how to / guides on how to replace and fix parts with this model which is extremely saddening to me.

 

I am having a similar issue. A few weeks ago my digital display started flickering intermittently. I happens sometimes but now it is happening more often. Sometimes it resets and the Jaguar logo come on and it restarts. This morning I went in the car and the date and time reset and when I stopped to get gas it would not start. I got a message SOS non available, I called AAA to get it towed and we could not get it to start but after about an hour, it started right up. I am going to take to a dealer but don't want to pay an arm and a leg to get it fixed. Can anybody tell me what could be the issue?

 

Update: The car was taken to local Jaguar dealership. The TCU needs to be replaced. The source of TCU malfunction is possibly from water leak from the high mounted stop lamp grommet (Third break light by the sharkfin). There was a thread posted in April of 2024 that discussed this exact same issue, https://www.jaguarforums.com/forum/x...-start-276380/. In that thread, there are photos of the high mount brake light removed with missing grommets. Another user posted, "If you have SOS Limited Function, change the battery pack in the TCU. If you have SOS Not Available, change the TCU", which seems to be my case".


Diagnostic fee, TCU module replacement/reprogram (2hr labor labor) and High mounted stop lamp grommet replacement (5hrs labor) quoted $2.9k total. Insane.

This does not include any of the additional services they recommend, listed below

• Service - 60,000 Miles $564.58 (Im assuming this is oil change, oil filter, cabin air filter?)
• replace main battery 1hr $628.73
• Alignment, Four Wheel Check and Adjust - $235.95
• bridgestone potenza re980 as 225/50г17 98w needs 2 tires 1hr $504.48 (Odd that they recc changing only 2 tires as opposed to all 4)
• Wheel(s) - Rotate and Balance $99.95
• Brake Discs and Pads, Rear Replacement $1195.62
• replace spark plugs tune up 1hr $481.97

EDIT: There was a 2018 Recall for this exact issue in specific VIN models See Attachment: Water ingress into the passenger and/or luggage compartment may be evident. This may be caused by water ingress through the high mounted stop lamp location grommets. Unfortunately my model VIN is not listed. This is something I will bring up with the dealer in hopes that this will be covered and fixed as a recall.

 

You seem to know enough about cars to not be surprised at dealer costs, yet you seem to still be shocked. Never has there ever been a story of "Took the car to the dealer and expected an expensive fix, and it turned out to be so cheap 😂 "

The thing is that all of that, even module reprogramming, can be done by a DIYer with reasonable confidence and skill set. It just takes a specific research and procurement path to acquire all that you need, plus with these Jags, a bit of gumption as well.

Ok, well maybe not tires bc even the average most seasoned DIYer probably doesn't have a tire mounter and balancer. The only guy I have when it comes to vehicles is my tire and inspection guy (happens to be the same dude). Good luck on getting your work done. Even the required stuff is outrageous.

Let us not forget that since Jaguar is basically not making any cars, there is not much avenue for dealers to make money, labor and parts will probably get even more ridiculous. They know that non-DIYer Jag owners are now a captive audience, big time!

 

I hear ya. Its my girl's car and I was trying to take a crack at fixing it to avoid dealership. I warned her about the cost and price of second hand ownership and going to the dealership. The above was more of a reference for anyone in the same predicament. My biggest limitation is not having enough time as I work full time 60 hours a week to learn and do the tasks

 

I wouldn't discount Indy shops, and it may well be worth it to just pay dealer diag and get it fixed at an Indy. Though does kind of suck it's have to get towed. But you are right. I have 3 and love Jag, but my best advice to anyone thinking about a Jag is. 1) do not let it be your only vehicle. 2) Don't get it unless you can DIY most of the repairs OR have a reasonable/trusted Independent mechanic at the very least. (Obviously this does not include folks that buy brand new ones and is still have factory warranty but I wouldn't recommend that either 😂 That depreciation is a killer. But a huge bonus for me!

 

100%. Knowing my girlfriend well, I warned her before buying this car used as the second owner (She paid less than 6k after her Corolla trad in) to put aside at least $2-4k for her car's inevitable repairs. I was actually more afraid of her turbo requiring replacement, and instructed her how to drive and let it idle after parking. Does she do it? no lol

But what you said is my girlfriend's exact plan. Dealer diagnostics and then Indy shop repairs for things I cannot do or are unable to make time for. We are actually trying to have the dealer and manufacture look into servicing the TCU and Grommet plugs as there was a recall on specific VIN models as described above. Will update this thread accordingly for future XE owners.