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Old 05-02-2013, 09:12 AM   #22
Drives: 2SS 1LE
Join Date: Apr 2013
Location: Albuquerque
Posts: 162
possible solution to HSA?

Found this on a challenger forum. Do you find anything similar in the manual for our Camaros??

Re: Hill Start Assist
This is what the manual says:

Hill Start Assist (HSA) — If Equipped
When on is selected, the HSA system is active. Refer to
“HSA (Hill Start Assistance)” under “Electronic Brake
Control System” in Section 5 of this manual for system
function and operating information. To make your selection,
press and release the FUNCTION SELECT button
until “ON” or “OFF” appears.

Then in chapter 5 it says:

HSA (Hill Start Assist) — Manual Transmission
The HSA system is designed to assist the driver when
starting a vehicle from a stop on a hill. HSA will maintain
the level of brake pressure the driver applied for a short
period of time after the driver takes their foot off of the
brake pedal. If the driver does not apply the throttle
during this short period of time, the system will release
brake pressure and the vehicle will roll down the hill. The
system will release brake pressure in proportion to
amount of throttle applied as the vehicle starts to move in
the intended direction of travel.
HSA Activation Criteria
The following criteria must be met in order for HSA to
• Vehicle must be stopped.
• Vehicle must be on a 7% grade or greater hill.
• Gear selection matches vehicle uphill direction (i.e.,
vehicle facing uphill is in forward gear; vehicle backing
uphill is in REVERSE gear).

There may be situations on minor hills (i.e., less than
8%), with a loaded vehicle, or while pulling a trailer,
when the system will not activate and slight rolling
may occur. This could cause a collision with another
vehicle or object. Always remember the driver is
responsible for braking the vehicle.

Disabling/Enabling HSA
If you wish to turn on or off the HSA system, it can be
done using the Customer Programmable Features in the
Electronic Vehicle Information Center (EVIC). Refer to
“Electronic Vehicle Information Center (EVIC)” in Section
4 of this manual.
For vehicles not equipped with the EVIC, perform the
following steps:
NOTE: You must complete Steps 1 through 8 within
90 seconds.
1. Center the steering wheel (front wheels pointing
straight forward).
2. Shift the transmission into NEUTRAL.
3. Apply the parking brake.
4. Start the engine.
5. Release the clutch pedal.
6. Rotate the steering wheel one-half turn to the left.
7. Press the ESP OFF switch (located in the lower switch
bank below the climate controls) four times within 20 seconds.
The ESP/TCS Indicator Light should turn on and
turn off two times.
8. Rotate the steering wheel back to center and then an
additional half-turn to the right.
9. Turn the ignition switch to the OFF position and then
back to the ON position. If the sequence was completed
properly, the ESP/TCS Indicator Light will blink several
times to confirm HSA is disabled.
10. Repeat these steps if you want to return this feature
to it’s previous setting.

Originally Posted by MPHS_AGM View Post
That sucks! Can anyone else confirm this? Here is the section from the service manual that I was referencing.
ORANGE CRUSSH is offline   Reply With Quote