DO WORRY about your red maintenance light. There is a very important milestone that your car has acheived at 90K miles. The most important is:
IT'S TIME TO CHANGE YOUR TIMING BELT. That is if it hasn't already been done. Do not procrastinate, do not delay. If your T-Belt breaks, you WILL do major damage to your engine. It may not break today, and it may not break next month, but if you ignore it, it WILL break. While you're at it, it would be wise to change your balance shaft belt, power steering belt, air conditioner belt, water pump, cam seal, crank seal and balance shaft seal with retainer. All these items are a common preventive maintenance. If you want your car to last and continue to give you troublefree (or as close to it) you should follow a preventive maintenance schedule. A Honda is a quaity car, but it does require maintenance. If all you do is follow the recommended maintenance schedule, your car should last quite a long time. And don't trust it to an average mechanic. Find a Honda specialist, or a dealer. You'd be surprised at the competitive prices at dealerships these days. Don't let people fool you, there is a difference. You might pay just a bit more (sometimes), but the quality of work and the knowledge of your vehicle is unsurpassed. YOU GET WHAT YOU PAY FOR. Take this advice from a 30 year owner Honda veteran. Just my $.02 worth.
Howard