Drive Unit Issues: Found Out I Need To Get A New Rear Drive Unit

Rivian Mom · 2025-06-04T11:36:22+00:00

Last night, when I reached my Rivian truck after work, my iPhone displayed a message. I captured a screenshot to show what happens if you avoid signing back into the app. The Phone as a Key (PAAK) feature still works without logging in again. If you're in an area with poor cell service, don’t try to sign in. Instead, keep using the app and PAAK until you’re somewhere with a good signal and can access your password. The screen’s text explains this, but some users still get confused. This is a quick tip for PAAK users to avoid trouble.

Rivian Mom

Active Wheeler

Nov 17, 2024

Went in for my routine 30k comprehensive on Wednesday. Told the engineer I am hearing a tick/knock from the rear at slow speeds every tire revolution.

Result, I need a new rear drive unit. Not a safety issue per feedback. A new Drive unit needs to be sent to the SC and the old needs to be sent back to the factory (once replaced) as Rivian is still studying the cause and effects of these occurrences.

I have another appointment in 2 weeks. Job will take a week or two to replace at that time. Note, I had no fault related notifications or issues beyond me noticing the tick/knock.

Image of a drive unit for reference