Our 2018 gas LR5 is having trouble starting. The console turns on when you hit the Start/Stop button, but the engine won’t turn over, there is not even a sound.

We have resorted to 1) foot off the brake 2) turn the car on/off 10 times (no engine turnover) 3) at this point, the engine will start.

Had a mechanic check all the codes, disconnect the battery, and the problem persists. He can’t figure out the issue.

The Key FOB battery is new.

Anyone else face this?

Thanks!

 

Have not had the issue. Did the mechanic check the relay for the starter?

 

Any different if you hold the fob to the left side of the steering column? Is it an OEM key?

 

OEM fob and I put it next to the steering wheel and tried to start the car - no luck.

When I push the On button with my foot off the brake (ignition on, electrical systems on), I hear 2 "thumps" and the electrical system stays on (engine off).

However, when I push the On button with my foot on the brake, I hear one "thump" and the electrical system stays on for 2 seconds then turns off. Engine won't start.

Mechanic ran all the codes and couldn't find anything.

Bad starter?

 

Locate starter relay, I believe it’s labeled SM with a circle around it. Use a jump wire across the terminals to power the starter. If it cranks, could be the relay, etc.

if no crank it’s the starter.

 

The TCM (Telematics Control Module) was faulty and had to be replaced. Even though this shouldn't affect the starting of the car, it messed up the electronics and prevented it from starting. Somewhat expensive (Part, labor, diagnostic).

 

Interesting. Did it have codes pointing to the telematics?

 

If you don’t mind me asking, how much $ was this?

 

I used a LAUNCH to diagnose and one of the fault codes was TCM (Telematics Control Module). It is annoying that something that has to do with the Telephone and Bluetooth affected the starting of the car.

 

About $1600 parts and labor, plus 2.5 hours of diagnostics (which I did in 5 minutes using my Launch diagnostic tool).