Jaguar E-Pace Stop Start Not Working
On the E-Pace stop/start most often stays off because the battery is below the charge it needs — the system is designed to give up first. Check the button by the gear selector isn't lit orange, then charge or test the battery. If the battery is good, ask the dealer to check the engine and coolant pump software.
How bad is it · Safe to drive
Safe to drive — stop/start is a convenience
The car drives exactly the same without it. But a battery too weak for stop/start is the same battery that sets low battery warnings and, later, a no-start.
Which one applies to yours depends on your symptoms, your model year and what has already been done to it.
Likely causes, most common first
Read the check cost before the odds: a free check that rules a cause out beats a likely guess that costs money.
Switched off, or the conditions aren't met
The button near the gear selector turns the system off, and it shows orange when it is off. The dash also says off when conditions don't allow a stop.
Orange light on the stop/start button, or it only works some days: cold weather, the car just started, the heater working hard and low battery charge all hold it off.
Look at the button. If it's orange, press it once; there's no need to set it every trip.
Press the button so it isn't orange, and expect it to work only when the engine is warm and the battery is well charged.
Battery below the charge stop/start needs
Stop/start needs the battery at around 80% or more. Short runs, a car left standing, or a battery past three years keep it below that, and the system simply stays off.
It never works, or stopped after weeks of little use; often with low battery warnings.
Full charge on a smart charger, then drive normally for a couple of weeks. If it still never engages, have the battery tested.
Charging, or a new AGM battery on an older car. A software fault draining the battery has also been fixed with the battery change.
Engine or coolant pump software
On pre-facelift cars stop/start behaviour is tied to the coolant pump software from the H291 update, and outdated engine control software can stop it too.
Battery good, button not orange, yet it fails most of the time; or the dash says on, the stop light comes on at a halt and the engine keeps running.
Ask the dealer what software level the engine and coolant pump are on, and whether the H291 update has been done.
A water pump software update has brought stop/start back. Worth asking for the latest engine software before anything else is replaced.
The order to check them in
The point of the order is money: each step either rules a cause out or makes the next one worth doing. Green is free, amber costs a little, red is the one to arrive at last.
Look at the button
Orange means off. Press it once and it stays on for later trips.
freeWarm engine, mild weather, no heater on full
Try it once the engine is warm and the cabin heating has settled. In the cold, just after starting, it won't stop the engine.
freeCharge the battery fully
A smart charger overnight, then a couple of weeks of normal driving. Longer drives alone rarely get it full.
a smart chargerBattery test, then an AGM if it's tired
On a car three years old or more a new AGM battery is the usual answer when it never works. See the battery page for charging and the resets after fitting.
a batterySoftware at the dealer
Engine and coolant pump software, including the H291 update on pre-facelift cars.
a dealer visitWhat it usually isn't
Don't spend money here first:
On jagaux.com
- Jaguar E-Pace Low Battery Warning, Battery ReplacementIf low battery warnings come with it, or the battery is due.
- Jaguar E-Pace Key Not RecognisedIf the key is also not being recognised.
- Jaguar VIN decoderConfirm your exact model year, engine and factory options before ordering parts — free.
Ratings, fuse numbers and torque figures vary by model year and market. Read the legend on your own car before pulling anything, and use the figures in the manual for your car, not the ones in a video.
Check your VIN: exactly which car you have and which bulletins apply to it.