Question about 1998 Pontiac Bonneville
This is a very common problem on GM vehicles. The security system is known to fail. Basically when you insert your key, the system checks for certain OHMS resistance. If the system cannot get the correct signal from the key, it assumes the key is incorrect and goes into SECURITY lockout mode. (prevents hotwiring) This has been happening with GM;s for a very long time. If the light comes on, but you can still start it, thank the lord. Failure is coming soon. There are ways to bypass this now. Read through this page for info, solutions as well.
Posted on Dec 18, 2017
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Posted on Jan 02, 2017
SOURCE: bonneville wont start
Check your battery cables,, they are probably loose or corroded. Side mount batteries that hold multiple cables have this problem that occurs over an extended period of time. Cleaning the connections and retightening the hold down bolt may fix it. Sometimes a 3/8 bolt and a washer with a nut can be used to get
a more positive holding force to keep the cable tight.
Posted on Feb 06, 2009
try turning the key on at leave it on till the security light goes off 10-15 minutes then turn the key off and back on and try starting it
Posted on Oct 20, 2009
Here's a quick check list
for most common cost of SRS / Air bag problem.
Dirty contacts on driver and passenger seat belt buckles
Dirty contacts on seat belt connectors (under seats)
Dirty contacts on driver and passenger sides weight sensors (under seat)
Weight on passenger seat
(Example: grocery package trigger SRS / Air Bag light on the way home.)
I recommend you to pass an vacuum over the contacts and use CRC electronic parts cleaner to rule out connectivity problem.
I DO NOT recommend disconnecting the negative battery connector to clean the code(s).
Without the code(s) the dealer will takes "BILLABLE" time to reproduce the problem.
Please rate my answer if it is useful to you.
Posted on Dec 16, 2009
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