[Snow Wag]

I've had my Wagoneer S3 for about three months. Went for a 500+ mile trip at Christmas starting at -40F/-40C.
Plugged in all night and started fine. Warmed for 10 minutes. Drove 5 minutes to gas station to top up. On restart the dash lit up like a Christmas tree; check engine light, cruise control unavailable, adaptive cruise control unavailable, stability control unavailable, 4-wheel drive temporarily unavailable, load leveling limited due to payload. And if you lose stability control, the brakes do not have any power assist.
Drove 1.5s hour and tried a restart at -40 = same issues.
Drove another hour and tried another restart. -25F/-32C. All items cleared but check engine light.
Drove another 6 hours and before I could get a code reader at destination, the code cleared. -11F/-24C.

Anyone have similar experiences in cold conditions?
Anyone have air ride suspension make odd clunking sounds in extreme cold?

 

[Assyrian_knight]

I've had my Wagoneer S3 for about three months. Went for a 500+ mile trip at Christmas starting at -40F/-40C.
Plugged in all night and started fine. Warmed for 10 minutes. Drove 5 minutes to gas station to top up. On restart the dash lit up like a Christmas tree; check engine light, cruise control unavailable, adaptive cruise control unavailable, stability control unavailable, 4-wheel drive temporarily unavailable, load leveling limited due to payload. And if you lose stability control, the brakes do not have any power assist.
Drove 1.5s hour and tried a restart at -40 = same issues.
Drove another hour and tried another restart. -25F/-32C. All items cleared but check engine light.
Drove another 6 hours and before I could get a code reader at destination, the code cleared. -11F/-24C.

Anyone have similar experiences in cold conditions?
Anyone have air ride suspension make odd clunking sounds in extreme cold?

wow, those cars are so jampacked with electronic modules, they freeze up at these temps and are hard to operate unless temps get up to less extreme levels. interesting! I'm glad you made it home safely!

 

[LegalBrief]

The cold clunking could be front-end sway bar torque. There is a TSB/RSU 22-210 to have the dealer fr-torque the sway bar.

I spend a lot of time in the snow, the car is very sensitive to battery voltage. This is a very common thing with all high-end cars.
These are AGM batteries once the battery drops to a certain point it can't recover.

Once the battery losses voltage all modern cars throws error after error.

 

[Snow Wag]

The cold clunking could be front-end sway bar torque. There is a TSB/RSU 22-210 to have the dealer fr-torque the sway bar.

I spend a lot of time in the snow, the car is very sensitive to battery voltage. This is a very common thing with all high-end cars.
These are AGM batteries once the battery drops to a certain point it can't recover.

Once the battery losses voltage all modern cars throws error after error.

Thanks for the tip on the TSB.

 

[Pioneer52]

After driving more than 1k off the road I got this clunking sound from the front end in warm weather and as legalBrief stated there was a a note to dealers to check torque on the sway bar, which took care of it temporarily. Temporarily because I start noticing it again. Maybe some threadlock is indicated.