Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Brake Warning System




Brake Warning System Description and Operation

Brake Warning Indicator

The instrument cluster turns the brake warning indicator ON when the following occurs:

* The instrument cluster performs the bulb check. The brake warning indicator illuminates for 5 s.

* When the body control module (BCM) detects a too low brake fluid level, it sends a serial data message to the instrument cluster, requesting illumination.

* The BCM detects that the parking brake is engaged. The instrument cluster receives a serial data message from the BCM requesting illumination.